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4khb

Structure of the Spt16D Pob3N heterodimer

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Uncharacterized protein SPT16D

Chaetomium thermophilum var. thermophilum

UniProt G0SDN1

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Uncharacterized protein POB3N × 1 （G0SHK5） SULFATE ION × 3 water × 2 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 2 Uncharacterized protein POB3N × 1 （G0SHK5） SULFATE ION × 3 water × 2 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 2 Uncharacterized protein POB3N × 1 （G0SHK5） SULFATE ION × 2 water × 2 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 2 Uncharacterized protein POB3N × 1 （G0SHK5） SULFATE ION × 1 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
4kho 4kho

2 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
4kha 4khb 4khb 4khb 4khb

5 assemblies

View Construct and Data Evidence
UniProt name G0SDN1_CHATD
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 2–127； UniProt 522–647 Author chain C； PDBConstruct 2–127； UniProt 522–647 Author chain E； PDBConstruct 2–127； UniProt 522–647 Author chain G； PDBConstruct 2–127； UniProt 522–647

Uncharacterized protein POB3N

Chaetomium thermophilum var. thermophilum

UniProt G0SHK5

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Uncharacterized protein SPT16D × 1 （G0SDN1） SULFATE ION × 3 water × 2 Consistent with protein count
2 Protein heterocomplex Heteromer Protein 2 Uncharacterized protein SPT16D × 1 （G0SDN1） SULFATE ION × 3 water × 2 Consistent with protein count
3 Protein heterocomplex Heteromer Protein 2 Uncharacterized protein SPT16D × 1 （G0SDN1） SULFATE ION × 2 water × 2 Consistent with protein count
4 Protein heterocomplex Heteromer Protein 2 Uncharacterized protein SPT16D × 1 （G0SDN1） SULFATE ION × 1 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
4khb 4khb 4khb 4khb

4 assemblies

View Construct and Data Evidence
UniProt name G0SHK5_CHATD
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B； PDBConstruct 4–195； UniProt 1–192 Author chain D； PDBConstruct 4–195； UniProt 1–192 Author chain F； PDBConstruct 4–195； UniProt 1–192 Author chain H； PDBConstruct 4–195； UniProt 1–192

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id4khb
Deposition date deposition_date2013-04-30
Structure title titleStructure of the Spt16D Pob3N heterodimer
Keywords keywordsPH like domains, TRANSCRIPTION-REPLICATION complex; TRANSCRIPTION/REPLICATION
Experimental Method methodX-RAY DIFFRACTION
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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

4khb__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

4khb__assembly_2__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

4khb__assembly_2__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）20.69 Å
Rg (electron density)19.42 Å
Total Rg20.40 Å
Atom count2237
Residues276
Excluded volume39402 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 4khb__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 4khb__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 4khb__assembly_3__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
4 1 4khb__assembly_4__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (4)

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6. Fold Classification (SCOP + CATH) 12 domains

CATH v4.4 (12 domains)

Domain ID domain_id4khbA00
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily210 — FACT complex subunit Spt16p/Cdc68p
Domain ID domain_id4khbB01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id4khbB02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily220 — Structure-specific recognition protein (SSRP1)
Domain ID domain_id4khbC00
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily210 — FACT complex subunit Spt16p/Cdc68p
Domain ID domain_id4khbD01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id4khbD02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily220 — Structure-specific recognition protein (SSRP1)
Domain ID domain_id4khbE00
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily210 — FACT complex subunit Spt16p/Cdc68p
Domain ID domain_id4khbF01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id4khbF02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily220 — Structure-specific recognition protein (SSRP1)
Domain ID domain_id4khbG00
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily210 — FACT complex subunit Spt16p/Cdc68p
Domain ID domain_id4khbH01
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily30 — Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)
Domain ID domain_id4khbH02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology29 — PH-domain like
Homologous superfamily homologous superfamily220 — Structure-specific recognition protein (SSRP1)
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7. Citations (1)