7sc9

Synechocystis PCC 6803 Phycobilisome core, complex with OCP

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Allophycocyanin alpha chain

OrganismNot specified

UniProt Q01951

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin beta chain × 34 (Q01952) Allophycocyanin subunit alpha-B × 2 (P72870) Allophycocyanin subunit beta-18 × 2 (P74551) Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core × 6 (Q01950) Phycobiliprotein ApcE × 2 (Q55544) Sll1873 protein × 2 (P74135) Phycobilisome rod-core linker polypeptide CpcG × 6 (P73093) Orange carotenoid-binding protein × 4 (P74102) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PHAA_SYNY3
Isoform —
PDB entities 1
Chains and sequence ranges Author chain AA; PDBConstruct 1–161; UniProt 1–161 Author chain AC; PDBConstruct 1–161; UniProt 1–161 Author chain AH; PDBConstruct 1–161; UniProt 1–161 Author chain AJ; PDBConstruct 1–161; UniProt 1–161 Author chain AN; PDBConstruct 1–161; UniProt 1–161 Author chain AP; PDBConstruct 1–161; UniProt 1–161 Author chain AR; PDBConstruct 1–161; UniProt 1–161 Author chain AV; PDBConstruct 1–161; UniProt 1–161 Author chain AX; PDBConstruct 1–161; UniProt 1–161 Author chain AZ; PDBConstruct 1–161; UniProt 1–161 Author chain BI; PDBConstruct 1–161; UniProt 1–161 Author chain BK; PDBConstruct 1–161; UniProt 1–161 Author chain BP; PDBConstruct 1–161; UniProt 1–161 Author chain BR; PDBConstruct 1–161; UniProt 1–161 Author chain BV; PDBConstruct 1–161; UniProt 1–161 Author chain BX; PDBConstruct 1–161; UniProt 1–161 Author chain BZ; PDBConstruct 1–161; UniProt 1–161 Author chain CC; PDBConstruct 1–161; UniProt 1–161 Author chain CE; PDBConstruct 1–161; UniProt 1–161 Author chain CG; PDBConstruct 1–161; UniProt 1–161 Author chain CR; PDBConstruct 1–161; UniProt 1–161 Author chain CT; PDBConstruct 1–161; UniProt 1–161 Author chain CV; PDBConstruct 1–161; UniProt 1–161 Author chain CY; PDBConstruct 1–161; UniProt 1–161 Author chain DA; PDBConstruct 1–161; UniProt 1–161 Author chain DC; PDBConstruct 1–161; UniProt 1–161 Author chain DJ; PDBConstruct 1–161; UniProt 1–161 Author chain DL; PDBConstruct 1–161; UniProt 1–161 Author chain DN; PDBConstruct 1–161; UniProt 1–161 Author chain DQ; PDBConstruct 1–161; UniProt 1–161 Author chain DS; PDBConstruct 1–161; UniProt 1–161 Author chain DU; PDBConstruct 1–161; UniProt 1–161

Allophycocyanin beta chain

OrganismNot specified

UniProt Q01952

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin alpha chain × 32 (Q01951) Allophycocyanin subunit alpha-B × 2 (P72870) Allophycocyanin subunit beta-18 × 2 (P74551) Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core × 6 (Q01950) Phycobiliprotein ApcE × 2 (Q55544) Sll1873 protein × 2 (P74135) Phycobilisome rod-core linker polypeptide CpcG × 6 (P73093) Orange carotenoid-binding protein × 4 (P74102) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name APCB_SYNY3
Isoform —
PDB entities 2
Chains and sequence ranges Author chain AB; PDBConstruct 1–161; UniProt 1–161 Author chain AD; PDBConstruct 1–161; UniProt 1–161 Author chain AF; PDBConstruct 1–161; UniProt 1–161 Author chain AI; PDBConstruct 1–161; UniProt 1–161 Author chain AL; PDBConstruct 1–161; UniProt 1–161 Author chain AO; PDBConstruct 1–161; UniProt 1–161 Author chain AQ; PDBConstruct 1–161; UniProt 1–161 Author chain AS; PDBConstruct 1–161; UniProt 1–161 Author chain AU; PDBConstruct 1–161; UniProt 1–161 Author chain AW; PDBConstruct 1–161; UniProt 1–161 Author chain AY; PDBConstruct 1–161; UniProt 1–161 Author chain BJ; PDBConstruct 1–161; UniProt 1–161 Author chain BL; PDBConstruct 1–161; UniProt 1–161 Author chain BN; PDBConstruct 1–161; UniProt 1–161 Author chain BQ; PDBConstruct 1–161; UniProt 1–161 Author chain BT; PDBConstruct 1–161; UniProt 1–161 Author chain BW; PDBConstruct 1–161; UniProt 1–161 Author chain BY; PDBConstruct 1–161; UniProt 1–161 Author chain CA; PDBConstruct 1–161; UniProt 1–161 Author chain CD; PDBConstruct 1–161; UniProt 1–161 Author chain CF; PDBConstruct 1–161; UniProt 1–161 Author chain CH; PDBConstruct 1–161; UniProt 1–161 Author chain CS; PDBConstruct 1–161; UniProt 1–161 Author chain CU; PDBConstruct 1–161; UniProt 1–161 Author chain CW; PDBConstruct 1–161; UniProt 1–161 Author chain CZ; PDBConstruct 1–161; UniProt 1–161 Author chain DB; PDBConstruct 1–161; UniProt 1–161 Author chain DD; PDBConstruct 1–161; UniProt 1–161 Author chain DK; PDBConstruct 1–161; UniProt 1–161 Author chain DM; PDBConstruct 1–161; UniProt 1–161 Author chain DO; PDBConstruct 1–161; UniProt 1–161 Author chain DR; PDBConstruct 1–161; UniProt 1–161 Author chain DT; PDBConstruct 1–161; UniProt 1–161 Author chain DV; PDBConstruct 1–161; UniProt 1–161

Allophycocyanin subunit alpha-B

OrganismNot specified

UniProt P72870

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin alpha chain × 32 (Q01951) Allophycocyanin beta chain × 34 (Q01952) Allophycocyanin subunit beta-18 × 2 (P74551) Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core × 6 (Q01950) Phycobiliprotein ApcE × 2 (Q55544) Sll1873 protein × 2 (P74135) Phycobilisome rod-core linker polypeptide CpcG × 6 (P73093) Orange carotenoid-binding protein × 4 (P74102) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name APCD_SYNY3
Isoform —
PDB entities 3
Chains and sequence ranges Author chain AE; PDBConstruct 1–161; UniProt 1–161 Author chain BM; PDBConstruct 1–161; UniProt 1–161

Allophycocyanin subunit beta-18

OrganismNot specified

UniProt P74551

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin alpha chain × 32 (Q01951) Allophycocyanin beta chain × 34 (Q01952) Allophycocyanin subunit alpha-B × 2 (P72870) Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core × 6 (Q01950) Phycobiliprotein ApcE × 2 (Q55544) Sll1873 protein × 2 (P74135) Phycobilisome rod-core linker polypeptide CpcG × 6 (P73093) Orange carotenoid-binding protein × 4 (P74102) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name APCF_SYNY3
Isoform —
PDB entities 4
Chains and sequence ranges Author chain AK; PDBConstruct 1–169; UniProt 1–169 Author chain BS; PDBConstruct 1–169; UniProt 1–169

Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core

OrganismNot specified

UniProt Q01950

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin alpha chain × 32 (Q01951) Allophycocyanin beta chain × 34 (Q01952) Allophycocyanin subunit alpha-B × 2 (P72870) Allophycocyanin subunit beta-18 × 2 (P74551) Phycobiliprotein ApcE × 2 (Q55544) Sll1873 protein × 2 (P74135) Phycobilisome rod-core linker polypeptide CpcG × 6 (P73093) Orange carotenoid-binding protein × 4 (P74102) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PYC1_SYNY3
Isoform —
PDB entities 5
Chains and sequence ranges Author chain BA; PDBConstruct 1–67; UniProt 1–67 Author chain BB; PDBConstruct 1–67; UniProt 1–67 Author chain CJ; PDBConstruct 1–67; UniProt 1–67 Author chain CK; PDBConstruct 1–67; UniProt 1–67 Author chain DF; PDBConstruct 1–67; UniProt 1–67 Author chain DX; PDBConstruct 1–67; UniProt 1–67

Phycobiliprotein ApcE

OrganismNot specified

UniProt Q55544

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin alpha chain × 32 (Q01951) Allophycocyanin beta chain × 34 (Q01952) Allophycocyanin subunit alpha-B × 2 (P72870) Allophycocyanin subunit beta-18 × 2 (P74551) Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core × 6 (Q01950) Sll1873 protein × 2 (P74135) Phycobilisome rod-core linker polypeptide CpcG × 6 (P73093) Orange carotenoid-binding protein × 4 (P74102) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name APCE_SYNY3
Isoform —
PDB entities 6
Chains and sequence ranges Author chain BD; PDBConstruct 1–896; UniProt 1–896 Author chain CM; PDBConstruct 1–896; UniProt 1–896

Sll1873 protein

OrganismNot specified

UniProt P74135

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin alpha chain × 32 (Q01951) Allophycocyanin beta chain × 34 (Q01952) Allophycocyanin subunit alpha-B × 2 (P72870) Allophycocyanin subunit beta-18 × 2 (P74551) Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core × 6 (Q01950) Phycobiliprotein ApcE × 2 (Q55544) Phycobilisome rod-core linker polypeptide CpcG × 6 (P73093) Orange carotenoid-binding protein × 4 (P74102) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name P74135_SYNY3
Isoform —
PDB entities 7
Chains and sequence ranges Author chain BF; PDBConstruct 1–121; UniProt 1–121 Author chain CO; PDBConstruct 1–121; UniProt 1–121

Phycobilisome rod-core linker polypeptide CpcG

OrganismNot specified

UniProt P73093

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin alpha chain × 32 (Q01951) Allophycocyanin beta chain × 34 (Q01952) Allophycocyanin subunit alpha-B × 2 (P72870) Allophycocyanin subunit beta-18 × 2 (P74551) Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core × 6 (Q01950) Phycobiliprotein ApcE × 2 (Q55544) Sll1873 protein × 2 (P74135) Orange carotenoid-binding protein × 4 (P74102) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name PYG_SYNY3
Isoform —
PDB entities 8
Chains and sequence ranges Author chain BG; PDBConstruct 1–249; UniProt 1–249 Author chain CP; PDBConstruct 1–249; UniProt 1–249 Author chain DG; PDBConstruct 1–249; UniProt 1–249 Author chain DH; PDBConstruct 1–249; UniProt 1–249 Author chain DY; PDBConstruct 1–249; UniProt 1–249 Author chain DZ; PDBConstruct 1–249; UniProt 1–249

Orange carotenoid-binding protein

Synechocystis sp. PCC 6803 substr. Kazusa

UniProt P74102

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 90 Allophycocyanin alpha chain × 32 (Q01951) Allophycocyanin beta chain × 34 (Q01952) Allophycocyanin subunit alpha-B × 2 (P72870) Allophycocyanin subunit beta-18 × 2 (P74551) Phycobilisome 7.8 kDa linker polypeptide, allophycocyanin-associated, core × 6 (Q01950) Phycobiliprotein ApcE × 2 (Q55544) Sll1873 protein × 2 (P74135) Phycobilisome rod-core linker polypeptide CpcG × 6 (P73093) PHYCOCYANOBILIN × 72 beta,beta-carotene-4,4'-dione × 4 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name OCP_SYNY3
Isoform —
PDB entities 9
Chains and sequence ranges Author chain BH; PDBConstruct 1–317; UniProt 1–317 Author chain CQ; PDBConstruct 1–317; UniProt 1–317 Author chain DI; PDBConstruct 1–317; UniProt 1–317 Author chain EA; PDBConstruct 1–317; UniProt 1–317

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_id7sc9
Deposition date deposition_date2021-09-27
Structure title titleSynechocystis PCC 6803 Phycobilisome core, complex with OCP
Keywords keywordsComplex, light harvesting, pigment, PHOTOSYNTHESIS; PHOTOSYNTHESIS
Experimental Method methodELECTRON MICROSCOPY
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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.

7sc9__assembly_1__model_1

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

Download this curve (.dat)

7sc9__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 1010 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

7sc9__assembly_1__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)78.09 Å
Rg (electron density)77.66 Å
Total Rg77.76 Å
Atom count117470
Residues14948
Excluded volume2096400 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7sc9__assembly_1__model_1 90-meric (90) 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 (11)

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7. Citations (1)