7sca

Synechocystis PCC 6803 Phycobilisome rod from OCP-PBS complex sample

Method: ELECTRON MICROSCOPY

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1. Protein Identity and Related Structures Protein Identity & Related Structures

C-phycocyanin alpha subunit

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	C-phycocyanin beta subunit × 18 （Q54714） Phycobilisome rod-core linker polypeptide CpcG × 1 （P73093） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 1 × 1 （P73203） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 2 × 1 （P73204） Phycobilisome 8.9 kDa linker polypeptide, phycocyanin-associated, rod × 1 （P73202） PHYCOCYANOBILIN × 54 water × 40	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PHCA_SYNY3
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain AA； PDBConstruct 1–162； UniProt 1–162 Author chain AC； PDBConstruct 1–162； UniProt 1–162 Author chain AE； PDBConstruct 1–162； UniProt 1–162 Author chain AG； PDBConstruct 1–162； UniProt 1–162 Author chain AI； PDBConstruct 1–162； UniProt 1–162 Author chain AK； PDBConstruct 1–162； UniProt 1–162 Author chain AM； PDBConstruct 1–162； UniProt 1–162 Author chain AO； PDBConstruct 1–162； UniProt 1–162 Author chain AQ； PDBConstruct 1–162； UniProt 1–162 Author chain AS； PDBConstruct 1–162； UniProt 1–162 Author chain AU； PDBConstruct 1–162； UniProt 1–162 Author chain AW； PDBConstruct 1–162； UniProt 1–162 Author chain AY； PDBConstruct 1–162； UniProt 1–162 Author chain BA； PDBConstruct 1–162； UniProt 1–162 Author chain BC； PDBConstruct 1–162； UniProt 1–162 Author chain BE； PDBConstruct 1–162； UniProt 1–162 Author chain BG； PDBConstruct 1–162； UniProt 1–162 Author chain BI； PDBConstruct 1–162； UniProt 1–162

C-phycocyanin beta subunit

OrganismNot specified

UniProt Q54714

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	C-phycocyanin alpha subunit × 18 （Q54715） Phycobilisome rod-core linker polypeptide CpcG × 1 （P73093） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 1 × 1 （P73203） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 2 × 1 （P73204） Phycobilisome 8.9 kDa linker polypeptide, phycocyanin-associated, rod × 1 （P73202） PHYCOCYANOBILIN × 54 water × 40	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PHCB_SYNY3
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain AB； PDBConstruct 1–172； UniProt 1–172 Author chain AD； PDBConstruct 1–172； UniProt 1–172 Author chain AF； PDBConstruct 1–172； UniProt 1–172 Author chain AH； PDBConstruct 1–172； UniProt 1–172 Author chain AJ； PDBConstruct 1–172； UniProt 1–172 Author chain AL； PDBConstruct 1–172； UniProt 1–172 Author chain AN； PDBConstruct 1–172； UniProt 1–172 Author chain AP； PDBConstruct 1–172； UniProt 1–172 Author chain AR； PDBConstruct 1–172； UniProt 1–172 Author chain AT； PDBConstruct 1–172； UniProt 1–172 Author chain AV； PDBConstruct 1–172； UniProt 1–172 Author chain AX； PDBConstruct 1–172； UniProt 1–172 Author chain AZ； PDBConstruct 1–172； UniProt 1–172 Author chain BB； PDBConstruct 1–172； UniProt 1–172 Author chain BD； PDBConstruct 1–172； UniProt 1–172 Author chain BF； PDBConstruct 1–172； UniProt 1–172 Author chain BH； PDBConstruct 1–172； UniProt 1–172 Author chain BJ； PDBConstruct 1–172； UniProt 1–172

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 40	C-phycocyanin alpha subunit × 18 （Q54715） C-phycocyanin beta subunit × 18 （Q54714） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 1 × 1 （P73203） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 2 × 1 （P73204） Phycobilisome 8.9 kDa linker polypeptide, phycocyanin-associated, rod × 1 （P73202） PHYCOCYANOBILIN × 54 water × 40	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	3
Chains and sequence ranges	Author chain BK； PDBConstruct 1–249； UniProt 1–249

Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 1

OrganismNot specified

UniProt P73203

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	C-phycocyanin alpha subunit × 18 （Q54715） C-phycocyanin beta subunit × 18 （Q54714） Phycobilisome rod-core linker polypeptide CpcG × 1 （P73093） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 2 × 1 （P73204） Phycobilisome 8.9 kDa linker polypeptide, phycocyanin-associated, rod × 1 （P73202） PHYCOCYANOBILIN × 54 water × 40	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PYR1_SYNY3
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain BL； PDBConstruct 1–291； UniProt 1–291

Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 2

OrganismNot specified

UniProt P73204

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	C-phycocyanin alpha subunit × 18 （Q54715） C-phycocyanin beta subunit × 18 （Q54714） Phycobilisome rod-core linker polypeptide CpcG × 1 （P73093） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 1 × 1 （P73203） Phycobilisome 8.9 kDa linker polypeptide, phycocyanin-associated, rod × 1 （P73202） PHYCOCYANOBILIN × 54 water × 40	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PYR2_SYNY3
Isoform	—
PDB entities	5
Chains and sequence ranges	Author chain BM； PDBConstruct 1–273； UniProt 1–273

Phycobilisome 8.9 kDa linker polypeptide, phycocyanin-associated, rod

OrganismNot specified

UniProt P73202

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 40	C-phycocyanin alpha subunit × 18 （Q54715） C-phycocyanin beta subunit × 18 （Q54714） Phycobilisome rod-core linker polypeptide CpcG × 1 （P73093） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 1 × 1 （P73203） Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 2 × 1 （P73204） PHYCOCYANOBILIN × 54 water × 40	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	PYS1_SYNY3
Isoform	—
PDB entities	6
Chains and sequence ranges	Author chain BN； PDBConstruct 1–83； UniProt 1–83

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_id	7sca
Deposition date deposition_date	2021-09-27
Structure title title	Synechocystis PCC 6803 Phycobilisome rod from OCP-PBS complex sample
Keywords keywords	Complex, light harvesting, pigment, PHOTOSYNTHESIS; PHOTOSYNTHESIS
Experimental Method method	ELECTRON 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.

7sca__assembly_1__model_1

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

Download this curve (.dat)

7sca__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

7sca__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	60.02 Å
Rg (electron density)	59.80 Å
Total Rg	59.88 Å
Atom count	54112
Residues	6836
Excluded volume	956840 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`7sca__assembly_1__model_1`	40-meric （40）	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 (8)

Entity 1 Entity 1 polymer

Description description	C-phycocyanin alpha subunit
Molecular weight formula_weight	17602.5 kDa
Source method src_method	nat
Copy count entity_count	18

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	AA,AC,AE,AG,AI,AK,AM,AO,AQ,AS,AU,AW,AY,BA,BC,BE,BG,BI
Atom count atom_count	55437

MKTPLTEAVSTADSQGRFLSSTELQIAFGRLRQANAGLQAAKALTDNAQSLVNGAAQAVYNKFPYTTQTQGNNFAADQRGKDKCARDIGYYLRIVTYCLVAGGTGPLDEYLIAGIDEINRTFDLSPSWYVEALKYIKANHGLSGDARDEANSYLDYAINALS

Entity 2 Entity 2 polymer

Description description	C-phycocyanin beta subunit
Molecular weight formula_weight	18142.4 kDa
Source method src_method	nat
Copy count entity_count	18

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	AB,AD,AF,AH,AJ,AL,AN,AP,AR,AT,AV,AX,AZ,BB,BD,BF,BH,BJ

MFDVFTRVVSQADARGEYLSGSQLDALSATVAEGNKRIDSVNRITGNASAIVSNAARALFAEQPQLIQPGGNAYTSRRMAACLRDMEIILRYVTYATFTGDASVLEDRCLNGLRETYVALGVPGASVAAGVQKMKEAALDIVNDPNGITRGDCSAIVAEIAGYFDRAAAAVA

Entity 3 Entity 3 polymer

Description description	Phycobilisome rod-core linker polypeptide CpcG
Molecular weight formula_weight	28938.8 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BK

MALPLLNYAPKSQNVRVEGYEIGSEEKPVVFTTENILSSSDMDNLIEAAYRQIFFHAFKWDREKVLESQLRNGQITVRDFVRGLLLSNTFRNSFYEKNSNYRFVEHCVQKILGRDVYSEREKIAWSIVVATKGYQGLIDDLLNSDEYLNNFGYDTVPYQRRRNLPGREAGELPFNIKSPRYDAYHRRQLGFPQIVWQNEVRRFIPQEKKLTAGNPMNFLGMARSINPAANTIPKVSAQNINIEASVPRR

Entity 4 Entity 4 polymer

Description description	Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 1
Molecular weight formula_weight	32558.6 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BL

MAITTAASRLGVAPYNESRPVELRPDFSLDDAKMVIRAVYRQVLGNDYIMDSERLKGAESLLTNGSISVREFVRTVAKSELYKKKFLYNNFQTRVIELNYKHLLGRAPFSEDEVIFHLDLYENQGFDADIDSYIDSVEYQENFGENIVPYYRFNNQVGDRTVGFTRMFRLYRGYANSDRSQLERSSSRLATELGQNTVSAIVGPSGSNAGWAYRPSRAGNTPAKALGGTVPFGQASKLFRVEITAISAPGYPKVRRSNKAVIVPFEQLNQTLQQINRLGGKVASITPASLS

Entity 5 Entity 5 polymer

Description description	Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 2
Molecular weight formula_weight	30836.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BM

MTSLVSAQRLGIVAVDEAIPLELRSRSTEEEVDAVILAVYRQVLGNDHLMSQERLTSAESLLRGREISVRDFVRAVALSEVYRQKFFHSNPQNRFIELNYKHLLGRAPYDQSEIAFHTDLYHQGGYEAEINSYIDSVEYTENFGDWVVPYFRGFATQRNQKTVGFSRSFQVYRGYATSDRSQGNGSRSRLTRELARNTASPVYAGSTAESLRGTSAGSRNQMYRLQVIQGAAPGRGTRVRRGKAEYLVSYDNLSAKLQQINRQGDTVTMISLA

Entity 6 Entity 6 polymer

Description description	Phycobilisome 8.9 kDa linker polypeptide, phycocyanin-associated, rod
Molecular weight formula_weight	9333.3 kDa
Source method src_method	nat
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	BN

MLGQSSLVGYSNTQAANRVFVYEVSGLRQTDANENSAHDIRRSGSVFIKVPYARMNDEMRRISRLGGTIVNIRPYQADSNEQN

Entity 7 Entity 7 non-polymer

Description description	PHYCOCYANOBILIN
Molecular weight formula_weight	588.7 kDa
Source method src_method	syn
Copy count entity_count	54

Entity 8 Entity 8 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	1325

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	triclinic

Resolution resolution	2.10 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	2133253

Synechocystis PCC 6803 Phycobilisome rod from OCP-PBS complex sample

1. Protein Identity and Related Structures Protein Identity & Related Structures

C-phycocyanin alpha subunit

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

C-phycocyanin beta subunit

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Phycobilisome rod-core linker polypeptide CpcG

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 1

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Phycobilisome 32.1 kDa linker polypeptide, phycocyanin-associated, rod 2

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Phycobilisome 8.9 kDa linker polypeptide, phycocyanin-associated, rod

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

7sca__assembly_1__model_1

7sca__assembly_1__model_1 | I(q)

7sca__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (8)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 polymer

Polymer Polymer

Entity 4 Entity 4 polymer

Polymer Polymer

Entity 5 Entity 5 polymer

Polymer Polymer

Entity 6 Entity 6 polymer

Polymer Polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 water

7. Citations (1)