1prc

CRYSTALLOGRAPHIC REFINEMENT AT 2.3 ANGSTROMS RESOLUTION AND REFINED MODEL OF THE PHOTOSYNTHETIC REACTION CENTER FROM RHODOPSEUDOMONAS VIRIDIS

Method: X-RAY DIFFRACTION

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

PHOTOSYNTHETIC REACTION CENTER

Blastochloris viridis

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	PHOTOSYNTHETIC REACTION CENTER × 1 （P06009） PHOTOSYNTHETIC REACTION CENTER × 1 （P06010） PHOTOSYNTHETIC REACTION CENTER × 1 （P06008） HEME C × 4 BACTERIOCHLOROPHYLL B × 4 BACTERIOPHEOPHYTIN B × 2 UBIQUINONE-1 × 1 FE (III) ION × 1 SULFATE ION × 7 MENAQUINONE-7 × 1 15-trans-1,2-dihydroneurosporene × 1 LAURYL DIMETHYLAMINE-N-OXIDE × 2 water × 4	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	PHOTOSYNTHETIC REACTION CENTER × 2 （P06009） PHOTOSYNTHETIC REACTION CENTER × 2 （P06010） PHOTOSYNTHETIC REACTION CENTER × 2 （P06008） HEME C × 8 BACTERIOCHLOROPHYLL B × 8 BACTERIOPHEOPHYTIN B × 4 UBIQUINONE-1 × 2 FE (III) ION × 2 SULFATE ION × 14 MENAQUINONE-7 × 2 15-trans-1,2-dihydroneurosporene × 2 LAURYL DIMETHYLAMINE-N-OXIDE × 4 water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CYCR_RHOVI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain C； PDBConstruct 1–336； UniProt 21–356

PHOTOSYNTHETIC REACTION CENTER

Blastochloris viridis

UniProt P06009

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	PHOTOSYNTHETIC REACTION CENTER × 1 （P07173） PHOTOSYNTHETIC REACTION CENTER × 1 （P06010） PHOTOSYNTHETIC REACTION CENTER × 1 （P06008） HEME C × 4 BACTERIOCHLOROPHYLL B × 4 BACTERIOPHEOPHYTIN B × 2 UBIQUINONE-1 × 1 FE (III) ION × 1 SULFATE ION × 7 MENAQUINONE-7 × 1 15-trans-1,2-dihydroneurosporene × 1 LAURYL DIMETHYLAMINE-N-OXIDE × 2 water × 4	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	PHOTOSYNTHETIC REACTION CENTER × 2 （P07173） PHOTOSYNTHETIC REACTION CENTER × 2 （P06010） PHOTOSYNTHETIC REACTION CENTER × 2 （P06008） HEME C × 8 BACTERIOCHLOROPHYLL B × 8 BACTERIOPHEOPHYTIN B × 4 UBIQUINONE-1 × 2 FE (III) ION × 2 SULFATE ION × 14 MENAQUINONE-7 × 2 15-trans-1,2-dihydroneurosporene × 2 LAURYL DIMETHYLAMINE-N-OXIDE × 4 water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RCEL_RHOVI
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain L； PDBConstruct 1–273； UniProt 1–273

PHOTOSYNTHETIC REACTION CENTER

Blastochloris viridis

UniProt P06010

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	PHOTOSYNTHETIC REACTION CENTER × 1 （P07173） PHOTOSYNTHETIC REACTION CENTER × 1 （P06009） PHOTOSYNTHETIC REACTION CENTER × 1 （P06008） HEME C × 4 BACTERIOCHLOROPHYLL B × 4 BACTERIOPHEOPHYTIN B × 2 UBIQUINONE-1 × 1 FE (III) ION × 1 SULFATE ION × 7 MENAQUINONE-7 × 1 15-trans-1,2-dihydroneurosporene × 1 LAURYL DIMETHYLAMINE-N-OXIDE × 2 water × 4	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	PHOTOSYNTHETIC REACTION CENTER × 2 （P07173） PHOTOSYNTHETIC REACTION CENTER × 2 （P06009） PHOTOSYNTHETIC REACTION CENTER × 2 （P06008） HEME C × 8 BACTERIOCHLOROPHYLL B × 8 BACTERIOPHEOPHYTIN B × 4 UBIQUINONE-1 × 2 FE (III) ION × 2 SULFATE ION × 14 MENAQUINONE-7 × 2 15-trans-1,2-dihydroneurosporene × 2 LAURYL DIMETHYLAMINE-N-OXIDE × 4 water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RCEM_RHOVI
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain M； PDBConstruct 1–323； UniProt 1–323

PHOTOSYNTHETIC REACTION CENTER

Blastochloris viridis

UniProt P06008

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 4	PHOTOSYNTHETIC REACTION CENTER × 1 （P07173） PHOTOSYNTHETIC REACTION CENTER × 1 （P06009） PHOTOSYNTHETIC REACTION CENTER × 1 （P06010） HEME C × 4 BACTERIOCHLOROPHYLL B × 4 BACTERIOPHEOPHYTIN B × 2 UBIQUINONE-1 × 1 FE (III) ION × 1 SULFATE ION × 7 MENAQUINONE-7 × 1 15-trans-1,2-dihydroneurosporene × 1 LAURYL DIMETHYLAMINE-N-OXIDE × 2 water × 4	Consistent with protein count
2	Protein heterocomplex	Heteromer	Protein 8	PHOTOSYNTHETIC REACTION CENTER × 2 （P07173） PHOTOSYNTHETIC REACTION CENTER × 2 （P06009） PHOTOSYNTHETIC REACTION CENTER × 2 （P06010） HEME C × 8 BACTERIOCHLOROPHYLL B × 8 BACTERIOPHEOPHYTIN B × 4 UBIQUINONE-1 × 2 FE (III) ION × 2 SULFATE ION × 14 MENAQUINONE-7 × 2 15-trans-1,2-dihydroneurosporene × 2 LAURYL DIMETHYLAMINE-N-OXIDE × 4 water × 8	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	RCEH_RHOVI
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain H； PDBConstruct 1–258； UniProt 1–258

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	1prc
Deposition date deposition_date	1988-02-04
Structure title title	CRYSTALLOGRAPHIC REFINEMENT AT 2.3 ANGSTROMS RESOLUTION AND REFINED MODEL OF THE PHOTOSYNTHETIC REACTION CENTER FROM RHODOPSEUDOMONAS VIRIDIS
Keywords keywords	PHOTOSYNTHETIC REACTION CENTER; PHOTOSYNTHETIC REACTION CENTER
Experimental Method method	X-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.

1prc__assembly_1__model_1

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

Download this curve (.dat)

1prc__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1prc__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	36.96 Å
Rg (electron density)	36.02 Å
Total Rg	36.68 Å
Atom count	10087
Residues	1186
Excluded volume	182230 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1prc__assembly_1__model_1`	tetrameric （4）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1prc__assembly_2__model_1`	octameric （8）	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 (14)

Entity 1 Entity 1 polymer

Description description	PHOTOSYNTHETIC REACTION CENTER
Molecular weight formula_weight	37450.8 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C
Atom count atom_count	10288

CFEPPPATTTQTGFRGLSMGEVLHPATVKAKKERDAQYPPALAAVKAEGPPVSQVYKNVKVLGNLTEAEFLRTMTAITEWVSPQEGCTYCHDENNLASEAKYPYVVARRMLEMTRAINTNWTQHVAQTGVTCYTCHRGTPLPPYVRYLEPTLPLNNRETPTHVERVETRSGYVVRLAKYTAYSALNYDPFTMFLANDKRQVRVVPQTALPLVGVSRGKERRPLSDAYATFALMMSISDSLGTNCTFCHNAQTFESWGKKSTPQRAIAWWGIRMVRDLNMNYLAPLNASLPASRLGRQGEAPQADCRTCHQGVTKPLFGASRLKDYPELGPIKAAAK

Source Source

Source organism organism	Blastochloris viridis
NCBI taxonomy ID ncbi_taxonomy_id	1079

Entity 2 Entity 2 polymer

Description description	PHOTOSYNTHETIC REACTION CENTER
Molecular weight formula_weight	30469.1 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	L

ALLSFERKYRVRGGTLIGGDLFDFWVGPYFVGFFGVSAIFFIFLGVSLIGYAASQGPTWDPFAISINPPDLKYGLGAAPLLEGGFWQAITVCALGAFISWMLREVEISRKLGIGWHVPLAFCVPIFMFCVLQVFRPLLLGSWGHAFPYGILSHLDWVNNFGYQYLNWHYNPGHMSSVSFLFVNAMALGLHGGLILSVANPGDGDKVKTAEHENQYFRDVVGYSIGALSIHRLGLFLASNIFLTGAFGTIASGPFWTRGWPEWWGWWLDIPFWS

Source Source

Source organism organism	Blastochloris viridis
NCBI taxonomy ID ncbi_taxonomy_id	1079

Entity 3 Entity 3 polymer

Description description	PHOTOSYNTHETIC REACTION CENTER
Molecular weight formula_weight	35932.2 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	M

ADYQTIYTQIQARGPHITVSGEWGDNDRVGKPFYSYWLGKIGDAQIGPIYLGASGIAAFAFGSTAILIILFNMAAEVHFDPLQFFRQFFWLGLYPPKAQYGMGIPPLHDGGWWLMAGLFMTLSLGSWWIRVYSRARALGLGTHIAWNFAAAIFFVLCIGCIHPTLVGSWSEGVPFGIWPHIDWLTAFSIRYGNFYYCPWHGFSIGFAYGCGLLFAAHGATILAVARFGGDREIEQITDRGTAVERAALFWRWTIGFNATIESVHRWGWFFSLMVMVSASVGILLTGTFVDNWYLWCVKHGAAPDYPAYLPATPDPASLPGAPK

Source Source

Source organism organism	Blastochloris viridis
NCBI taxonomy ID ncbi_taxonomy_id	1079

Entity 4 Entity 4 polymer

Description description	PHOTOSYNTHETIC REACTION CENTER
Molecular weight formula_weight	28557.5 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H

MYHGALAQHLDIAQLVWYAQWLVIWTVVLLYLRREDRREGYPLVEPLGLVKLAPEDGQVYELPYPKTFVLPHGGTVTVPRRRPETRELKLAQTDGFEGAPLQPTGNPLVDAVGPASYAERAEVVDATVDGKAKIVPLRVATDFSIAEGDVDPRGLPVVAADGVEAGTVTDLWVDRSEHYFRYLELSVAGSARTALIPLGFCDVKKDKIVVTSILSEQFANVPRLQSRDQITLREEDKVSAYYAGGLLYATPERAESLL

Source Source

Source organism organism	Blastochloris viridis
NCBI taxonomy ID ncbi_taxonomy_id	1079

Entity 5 Entity 5 non-polymer

Description description	HEME C
Molecular weight formula_weight	618.5 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 6 Entity 6 non-polymer

Description description	BACTERIOCHLOROPHYLL B
Molecular weight formula_weight	909.5 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 7 Entity 7 non-polymer

Description description	BACTERIOPHEOPHYTIN B
Molecular weight formula_weight	887.2 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 8 Entity 8 non-polymer

Description description	UBIQUINONE-1
Molecular weight formula_weight	250.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 9 Entity 9 non-polymer

Description description	FE (III) ION
Molecular weight formula_weight	55.8 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 10 Entity 10 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	7

Entity 11 Entity 11 non-polymer

Description description	MENAQUINONE-7
Molecular weight formula_weight	649.0 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 12 Entity 12 non-polymer

Description description	15-trans-1,2-dihydroneurosporene
Molecular weight formula_weight	540.9 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 13 Entity 13 non-polymer

Description description	LAURYL DIMETHYLAMINE-N-OXIDE
Molecular weight formula_weight	229.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 14 Entity 14 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	201

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6. Fold Classification (SCOP + CATH) 13 domains

SCOP 2.08 (5 domains)

Domain ID domain_id	d1prcc_
Class class	a — All alpha proteins
Fold Fold fold	a.138 — Multiheme cytochromes
Superfamily Superfamily superfamily	a.138.1 — Multiheme cytochromes
Family Family family	a.138.1.2 — Photosynthetic reaction centre (cytochrome subunit)

Domain ID domain_id	d1prch1
Class class	b — All beta proteins
Fold Fold fold	b.41 — PRC-barrel domain
Superfamily Superfamily superfamily	b.41.1 — PRC-barrel domain
Family Family family	b.41.1.1 — Photosynthetic reaction centre, H-chain, cytoplasmic domain

Domain ID domain_id	d1prch2
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.23 — Single transmembrane helix
Superfamily Superfamily superfamily	f.23.10 — Photosystem II reaction centre subunit H, transmembrane region
Family Family family	f.23.10.1 — Photosystem II reaction centre subunit H, transmembrane region

Domain ID domain_id	d1prcl_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.26 — Bacterial photosystem II reaction centre, L and M subunits
Superfamily Superfamily superfamily	f.26.1 — Bacterial photosystem II reaction centre, L and M subunits
Family Family family	f.26.1.1 — Bacterial photosystem II reaction centre, L and M subunits

Domain ID domain_id	d1prcm_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.26 — Bacterial photosystem II reaction centre, L and M subunits
Superfamily Superfamily superfamily	f.26.1 — Bacterial photosystem II reaction centre, L and M subunits
Family Family family	f.26.1.1 — Bacterial photosystem II reaction centre, L and M subunits

CATH v4.4 (8 domains)

Domain ID domain_id	1prcC01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	468 — Photosynthetic Reaction Center, subunit C; domain 2
Homologous superfamily homologous superfamily	10 — Photosynthetic Reaction Center, subunit C, domain 2

Domain ID domain_id	1prcC02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	468 — Photosynthetic Reaction Center, subunit C; domain 2
Homologous superfamily homologous superfamily	10 — Photosynthetic Reaction Center, subunit C, domain 2

Domain ID domain_id	1prcH01
Class class	4 — Few Secondary Structures
Architecture architecture	10 — Irregular
Topology topology	540 — Photosynthetic Reaction Center; Chain H, domain 1
Homologous superfamily homologous superfamily	10 — Photosynthetic reaction centre, H subunit, N-terminal domain

Domain ID domain_id	1prcH02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	50 — Photosynthetic Reaction Center; Chain H, domain 2
Homologous superfamily homologous superfamily	10 — Photosynthetic Reaction Center, subunit H, domain 2

Domain ID domain_id	1prcL01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	85 — Photosynthetic Reaction Center, subunit M; domain 1
Homologous superfamily homologous superfamily	10 — Photosystem II protein D1-like

Domain ID domain_id	1prcL02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	85 — Photosynthetic Reaction Center, subunit M; domain 1
Homologous superfamily homologous superfamily	10 — Photosystem II protein D1-like

Domain ID domain_id	1prcM01
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	85 — Photosynthetic Reaction Center, subunit M; domain 1
Homologous superfamily homologous superfamily	10 — Photosystem II protein D1-like

Domain ID domain_id	1prcM02
Class class	1 — Mainly Alpha
Architecture architecture	20 — Up-down Bundle
Topology topology	85 — Photosynthetic Reaction Center, subunit M; domain 1
Homologous superfamily homologous superfamily	10 — Photosystem II protein D1-like

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Unit-cell length a length_a	223.500 Å
Unit-cell length b length_b	223.500 Å
Unit-cell length c length_c	113.600 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	8

Space group space_group	P 43 21 2
Space-group number int_tables_number	96
Crystal system crystal_system	—

Resolution resolution	2.300 Å
Low-resolution limit resolution_low	19.990 Å
R factor r_factor	0.1930
R_work r_work	—
R_free r_free	—

CRYSTALLOGRAPHIC REFINEMENT AT 2.3 ANGSTROMS RESOLUTION AND REFINED MODEL OF THE PHOTOSYNTHETIC REACTION CENTER FROM RHODOPSEUDOMONAS VIRIDIS

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

PHOTOSYNTHETIC REACTION CENTER

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHOTOSYNTHETIC REACTION CENTER

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHOTOSYNTHETIC REACTION CENTER

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

PHOTOSYNTHETIC REACTION CENTER

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

1prc__assembly_1__model_1

1prc__assembly_1__model_1 | I(q)

1prc__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

5. Entities and Polymers Entities & Polymers (14)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

Entity 7 Entity 7 non-polymer

Entity 8 Entity 8 non-polymer

Entity 9 Entity 9 non-polymer

Entity 10 Entity 10 non-polymer

Entity 11 Entity 11 non-polymer

Entity 12 Entity 12 non-polymer

Entity 13 Entity 13 non-polymer

Entity 14 Entity 14 water

6. Fold Classification (SCOP + CATH) 13 domains

SCOP 2.08 (5 domains)

CATH v4.4 (8 domains)

7. Citations (5)