Current Protein Identity：P04050
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| UNP | PDB | Protein and construct | Assembly | Composition class | Protein state | Molecular copy count | PDB declaration | Consistency status |
|---|---|---|---|---|---|---|---|---|
| P04050 | 1i3q | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 10 | decameric （10） | Consistent with protein count |
| P04050 | 1i50 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 10 | decameric （10） | Consistent with protein count |
| P04050 | 1i50 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 2 | Protein heterocomplex | Heteromer | Protein 20 | eicosameric （20） | Consistent with protein count |
| P04050 | 1i6h | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 1k83 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 11 | undecameric （11） | Consistent with protein count |
| P04050 | 1nik | RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 12 | dodecameric （12） | Consistent with protein count |
| P04050 | 1nt9 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 12 | dodecameric （12） | Consistent with protein count |
| P04050 | 1pqv | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 13 | tridecameric （13） | Consistent with protein count |
| P04050 | 1r5u | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 11 | undecameric （11） | Consistent with protein count |
| P04050 | 1r9s | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 1r9t | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 1sfo | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 1twa | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 10 | decameric （10） | Consistent with protein count |
| P04050 | 1twc | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 10 | decameric （10） | Consistent with protein count |
| P04050 | 1twf | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 10 | decameric （10） | Consistent with protein count |
| P04050 | 1twf | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 2 | Protein heterocomplex | Heteromer | Protein 20 | eicosameric （20） | Consistent with protein count |
| P04050 | 1twg | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 10 | decameric （10） | Consistent with protein count |
| P04050 | 1twg | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 2 | Protein heterocomplex | Heteromer | Protein 40 | 40-meric （40） | Consistent with protein count |
| P04050 | 1twg | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 3 | Protein heterocomplex | Heteromer | Protein 20 | eicosameric （20） | Consistent with protein count |
| P04050 | 1twh | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 10 | decameric （10） | Consistent with protein count |
| P04050 | 1wcm | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 12 | dodecameric （12） | Consistent with protein count |
| P04050 | 1y1v | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 13 | tridecameric （13） | Consistent with protein count |
| P04050 | 1y1w | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 1y1y | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 1 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 1y77 | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 2b63 | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein–RNA | Heteromer | Protein 12 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2b8k | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 12 | dodecameric （12） | Consistent with protein count |
| P04050 | 2e2h | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2e2i | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2e2j | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2ja5 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 1 RNA 1 | pentadecameric （15） | Review required |
| P04050 | 2ja6 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 2ja7 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 2ja7 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain M Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 2ja7 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 2 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 2ja7 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain M Reference sequence 1–1733 | 2 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 2ja8 | DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNIT Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 2lo6 | DNA-directed RNA polymerase II subunit RPB1 Author chain B Reference sequence 1556–1569 | 1 | Protein heterocomplex | Heteromer | Protein 2 | dimeric （2） | Consistent with protein count |
| P04050 | 2nvq | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2nvt | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2nvx | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2nvy | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 10 | decameric （10） | Consistent with protein count |
| P04050 | 2nvy | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 2 | Protein heterocomplex | Heteromer | Protein 20 | eicosameric （20） | Consistent with protein count |
| P04050 | 2nvz | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2r7z | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 2r92 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–RNA | Heteromer | Protein 12 RNA 2 | tetradecameric （14） | Consistent with all polymers |
| P04050 | 2r93 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–RNA | Heteromer | Protein 12 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 2vum | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 2yu9 | DNA-directed RNA polymerase II largest subunit Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3cqz | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 11 | undecameric （11） | Consistent with protein count |
| P04050 | 3fki | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 12 | dodecameric （12） | Consistent with protein count |
| P04050 | 3gtg | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3gtj | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3gtk | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 10 DNA 3 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3gtl | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3gtm | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 11 DNA 2 RNA 1 | tetradecameric （14） | Consistent with all polymers |
| P04050 | 3gto | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3gtp | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3gtq | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3h3v | DNA-directed RNA polymerase II subunit RPB1 Author chain B Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3hou | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3hou | DNA-directed RNA polymerase II subunit RPB1 Author chain M Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3hou | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 2 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3hou | DNA-directed RNA polymerase II subunit RPB1 Author chain M Reference sequence 1–1733 | 2 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3hov | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3how | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3hox | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3hoy | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3hoz | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3i4m | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3i4n | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3j1n | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1455 | 1 | Protein heterocomplex | Heteromer | Protein 12 | dodecameric （12） | Consistent with protein count |
| P04050 | 3k1f | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 13 | tridecameric （13） | Consistent with protein count |
| P04050 | 3k7a | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 11 | undecameric （11） | Consistent with protein count |
| P04050 | 3m3y | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3m4o | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 3po2 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 3po3 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 3qt1 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Insufficient information | Heteromer | Protein 12 | dodecameric （12） | Consistent with protein count |
| P04050 | 3rzd | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3rzo | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s14 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s15 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s16 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s17 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s1m | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s1n | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s1q | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s1r | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s2d | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 3s2h | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 4a3b | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3c | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3d | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3e | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3f | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3g | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3i | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Protein–DNA | Heteromer | Protein 12 DNA 2 | tetradecameric （14） | Consistent with all polymers |
| P04050 | 4a3j | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3k | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3l | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a3m | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4a93 | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1732 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 4bbr | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 13 | tridecameric （13） | Consistent with protein count |
| P04050 | 4bbs | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 4bxx | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 4bxz | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 13 | tridecameric （13） | Consistent with protein count |
| P04050 | 4by1 | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 4by7 | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 4gwq | DNA-directed RNA polymerase II subunit RPB1 Author chain H Reference sequence 1556–1590 | 1 | Protein heterocomplex | Heteromer | Protein 8 | octameric （8） | Consistent with protein count |
| P04050 | 4v1m | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 4v1n | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 16 DNA 2 RNA 1 | nonadecameric （19） | Consistent with all polymers |
| P04050 | 4v1o | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 23 DNA 2 RNA 1 | 26-meric （26） | Consistent with all polymers |
| P04050 | 4x67 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 4x6a | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 4y52 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 4y7n | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 5c3e | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 5c44 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 5c4a | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 5c4j | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 5c4x | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 5fmf | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 25 DNA 2 | 27-meric （27） | Consistent with all polymers |
| P04050 | 5fyw | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 20 DNA 2 | 22-meric （22） | Consistent with all polymers |
| P04050 | 5fz5 | DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 20 DNA 2 | 22-meric （22） | Consistent with all polymers |
| P04050 | 5ip7 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 2–1733 | 1 | Protein heterocomplex | Heteromer | Protein 13 | tridecameric （13） | Consistent with protein count |
| P04050 | 5ip9 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 2–1733 | 1 | Protein heterocomplex | Heteromer | Protein 13 | tridecameric （13） | Consistent with protein count |
| P04050 | 5oqj | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 29 DNA 2 | 31-meric （31） | Consistent with all polymers |
| P04050 | 5oqm | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Insufficient information | Heteromer | Protein 44 DNA 2 | 46-meric （46） | Consistent with all polymers |
| P04050 | 5ot2 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 5sva | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 38 DNA 2 | 40-meric （40） | Consistent with all polymers |
| P04050 | 5sva | DNA-directed RNA polymerase II subunit RPB1 Author chain k Reference sequence 1561–1585 | 1 | Protein–DNA | Heteromer | Protein 38 DNA 2 | 40-meric （40） | Consistent with all polymers |
| P04050 | 5u5q | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 12 | dodecameric （12） | Consistent with protein count |
| P04050 | 5vkl | DNA-directed RNA polymerase II subunit RPB1 Author chain B Reference sequence 1476–1498 | 1 | Protein heterocomplex | Heteromer | Protein 2 | dimeric （2） | Consistent with protein count |
| P04050 | 5vko | DNA-directed RNA polymerase II subunit RPB1 Author chain B Reference sequence 1468–1500 | 1 | Protein heterocomplex | Heteromer | Protein 2 | dimeric （2） | Consistent with protein count |
| P04050 | 5vvr | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 5vvs | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 5w4u | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 5w51 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 6blo | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 6blp | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 6bm2 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 6bm4 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 6bqf | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 1 RNA 1 | dodecameric （12） | Consistent with all polymers |
| P04050 | 6gyk | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 18 DNA 2 | eicosameric （20） | Consistent with all polymers |
| P04050 | 6gyl | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 20 DNA 2 | 22-meric （22） | Consistent with all polymers |
| P04050 | 6gym | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 29 DNA 2 | 31-meric （31） | Consistent with all polymers |
| P04050 | 6i84 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 20 DNA 2 RNA 1 | 23-meric （23） | Consistent with all polymers |
| P04050 | 6o6c | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 6upx | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 6upy | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 6upz | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 6uq0 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 6uq1 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 6uq2 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 6uq3 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7ked | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7kee | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7kef | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7nkx | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 23 DNA 2 RNA 1 | 26-meric （26） | Consistent with all polymers |
| P04050 | 7nky | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 24 DNA 2 RNA 1 | 27-meric （27） | Consistent with all polymers |
| P04050 | 7o4i | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 28 DNA 2 | 30-meric （30） | Consistent with all polymers |
| P04050 | 7o4j | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 28 DNA 2 | 30-meric （30） | Consistent with all polymers |
| P04050 | 7o4k | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 15 DNA 2 | heptadecameric （17） | Consistent with all polymers |
| P04050 | 7o4l | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 15 DNA 2 | heptadecameric （17） | Consistent with all polymers |
| P04050 | 7o72 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 28 DNA 2 | 30-meric （30） | Consistent with all polymers |
| P04050 | 7o73 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 28 DNA 2 | 30-meric （30） | Consistent with all polymers |
| P04050 | 7o75 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 28 DNA 2 | 30-meric （30） | Consistent with all polymers |
| P04050 | 7rim | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7rip | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7riq | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7riw | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7rix | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7riy | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 7ui9 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1453 | 1 | Protein heterocomplex | Heteromer | Protein 33 | 33-meric （33） | Consistent with protein count |
| P04050 | 7ui9 | DNA-directed RNA polymerase II subunit RPB1 Author chain z Reference sequence 1561–1585 | 1 | Protein heterocomplex | Heteromer | Protein 33 | 33-meric （33） | Consistent with protein count |
| P04050 | 7uif | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 33 | 33-meric （33） | Consistent with protein count |
| P04050 | 7uif | DNA-directed RNA polymerase II subunit RPB1 Author chain z Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 33 | 33-meric （33） | Consistent with protein count |
| P04050 | 7uig | DNA-directed RNA polymerase II subunit RPB1 Author chain z Reference sequence 1–1733 | 1 | Protein heterocomplex | Heteromer | Protein 17 | heptadecameric （17） | Consistent with protein count |
| P04050 | 7uio | DNA-directed RNA polymerase II subunit RPB1 Author chain AA Reference sequence 1–1453 | 1 | Protein–DNA | Heteromer | Protein 78 DNA 2 | 80-meric （80） | Consistent with all polymers |
| P04050 | 7uio | DNA-directed RNA polymerase II subunit RPB1 Author chain Az Reference sequence 1561–1585 | 1 | Protein–DNA | Heteromer | Protein 78 DNA 2 | 80-meric （80） | Consistent with all polymers |
| P04050 | 7uio | DNA-directed RNA polymerase II subunit RPB1 Author chain BA Reference sequence 1–1453 | 1 | Protein–DNA | Heteromer | Protein 78 DNA 2 | 80-meric （80） | Consistent with all polymers |
| P04050 | 7uio | DNA-directed RNA polymerase II subunit RPB1 Author chain Bz Reference sequence 1561–1585 | 1 | Protein–DNA | Heteromer | Protein 78 DNA 2 | 80-meric （80） | Consistent with all polymers |
| P04050 | 7zs9 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 36 DNA 2 | 38-meric （38） | Consistent with all polymers |
| P04050 | 7zsa | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 36 DNA 2 | 38-meric （38） | Consistent with all polymers |
| P04050 | 7zsb | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 36 DNA 2 | 38-meric （38） | Consistent with all polymers |
| P04050 | 8cen | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 44 DNA 2 | 46-meric （46） | Consistent with all polymers |
| P04050 | 8ceo | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 52 DNA 2 | 54-meric （54） | Consistent with all polymers |
| P04050 | 8jch | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 15 DNA 2 RNA 1 | 18-meric （18） | Consistent with all polymers |
| P04050 | 8k5p | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 15 DNA 2 RNA 1 | 18-meric （18） | Consistent with all polymers |
| P04050 | 8ram | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 16 DNA 2 RNA 1 | 19-meric （19） | Consistent with all polymers |
| P04050 | 8rap | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 16 DNA 2 RNA 1 | 19-meric （19） | Consistent with all polymers |
| P04050 | 8tug | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | 16-meric （16） | Consistent with all polymers |
| P04050 | 8tvp | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | 16-meric （16） | Consistent with all polymers |
| P04050 | 8tvq | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 11 DNA 2 RNA 1 | 14-meric （14） | Consistent with all polymers |
| P04050 | 8tvv | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | 15-meric （15） | Consistent with all polymers |
| P04050 | 8tvw | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | 15-meric （15） | Consistent with all polymers |
| P04050 | 8tvx | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | 15-meric （15） | Consistent with all polymers |
| P04050 | 8tvy | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 14 DNA 2 RNA 1 | 17-meric （17） | Consistent with all polymers |
| P04050 | 8u9r | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 1 RNA 1 | tetradecameric （14） | Consistent with all polymers |
| P04050 | 8u9x | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 1 RNA 1 | tetradecameric （14） | Consistent with all polymers |
| P04050 | 8ukq | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | 13-meric （13） | Consistent with all polymers |
| P04050 | 8ukr | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 8uks | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 8ukt | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | 13-meric （13） | Consistent with all polymers |
| P04050 | 8uku | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 8uoq | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 28 DNA 2 | 30-meric （30） | Consistent with all polymers |
| P04050 | 8uot | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Protein–DNA | Heteromer | Protein 28 DNA 2 | 30-meric （30） | Consistent with all polymers |
| P04050 | 9bvt | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 1 RNA 1 | tetradecameric （14） | Consistent with all polymers |
| P04050 | 9bw0 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 1 RNA 1 | tetradecameric （14） | Consistent with all polymers |
| P04050 | 9ja1 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 11 DNA 2 RNA 1 | tetradecameric （14） | Consistent with all polymers |
| P04050 | 9k7f | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |
| P04050 | 9kd7 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 9kd8 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 9kd9 | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 9kdn | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 13 DNA 2 RNA 1 | hexadecameric （16） | Consistent with all polymers |
| P04050 | 9kdo | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 14 DNA 2 RNA 1 | heptadecameric （17） | Consistent with all polymers |
| P04050 | 9kdq | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1454 | 1 | Other combination | Heteromer | Protein 15 DNA 2 RNA 1 | octadecameric （18） | Consistent with all polymers |
| P04050 | 9n5b | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9n5c | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9n5d | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9n5e | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9n5f | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9n5g | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9pvv | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9pvw | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9pvx | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 10 DNA 2 RNA 1 | tridecameric （13） | Consistent with all polymers |
| P04050 | 9qeb | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | 15-meric （15） | Consistent with all polymers |
| P04050 | 9ryb | DNA-directed RNA polymerase II subunit RPB1 Author chain A Reference sequence 1–1733 | 1 | Other combination | Heteromer | Protein 12 DNA 2 RNA 1 | pentadecameric （15） | Consistent with all polymers |