2bhw

PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION

Method: X-RAY DIFFRACTION

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

CHLOROPHYLL A-B BINDING PROTEIN AB80

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 3	;(3R,3'R,6'S,9R,9'R,13R,13'S)-4',5'-DIDEHYDRO-5',6',7',8',9,9',10,10',11,11',12,12',13,13',14,14',15,15'-OCTADECAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL ; × 6 ;(1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL ; × 3 ;(3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL ; × 3 CHLOROPHYLL A × 24 CHLOROPHYLL B × 18 1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE × 3 DIGALACTOSYL DIACYL GLYCEROL (DGDG) × 3 water × 3	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CB22_PEA
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–232； UniProt 38–269 Author chain B； PDBConstruct 1–232； UniProt 38–269 Author chain C； PDBConstruct 1–232； UniProt 38–269

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	2bhw
Deposition date deposition_date	2005-01-19
Structure title title	PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION
Keywords keywords	;LHC-II, PHOTOSYNTHESIS, LIGHT-HARVESTING, MEMBRANE PROTEIN, CHLOROPHYLL, CHLOROPLAST, CHROMOPHORE, MEMBRANE, PHOSPHORYLATION, PHOTOSYSTEM I, PHOTOSYSTEM II, PLASTID, THYLAKOID, TRANSIT PEPTIDE, TRANSMEMBRANE ;; PHOTOSYNTHESIS
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.

2bhw__assembly_1__model_1

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

Download this curve (.dat)

2bhw__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2bhw__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	30.46 Å
Rg (electron density)	28.22 Å
Total Rg	29.35 Å
Atom count	8352
Residues	669
Excluded volume	158400 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2bhw__assembly_1__model_1`	trimeric （3）	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 (9)

Entity 1 Entity 1 polymer

Description description	CHLOROPHYLL A-B BINDING PROTEIN AB80
Molecular weight formula_weight	24920.0 kDa
Source method src_method	nat
Copy count entity_count	3

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C
Atom count atom_count	8373

RKSATTKKVASSGSPWYGPDRVKYLGPFSGESPSYLTGEFPGDYGWDTAGLSADPETFSKNRELEVIHSRWAMLGALGSVFPELLSRNGVKFGEAVWFKAGSQIFSEGGLDYLGNPSLVHAQSILAIWATQVILMGAVEGYRIAGGPLGEVVDPLYPGGSFDPLGLADDPEAFAELKVKELKNGRLAMFSMFGFFVQAIVTGKGPLENLADHLADPVNNNAWSYATNFVPGK

Entity 2 Entity 2 non-polymer

Description description	;(3R,3'R,6'S,9R,9'R,13R,13'S)-4',5'-DIDEHYDRO-5',6',7',8',9,9',10,10',11,11',12,12',13,13',14,14',15,15'-OCTADECAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL ;
Molecular weight formula_weight	585.0 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 3 Entity 3 non-polymer

Description description	;(1R,3R)-6-{(3E,5E,7E,9E,11E,13E,15E,17E)-18-[(1S,4R,6R)-4-HYDROXY-2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPT-1-YL]-3,7,12,16-TETRAMETHYLOCTADECA-1,3,5,7,9,11,13,15,17-NONAENYLIDENE}-1,5,5-TRIMETHYLCYCLOHEXANE-1,3-DIOL ;
Molecular weight formula_weight	600.9 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 non-polymer

Description description	;(3S,5R,6S,3'S,5'R,6'S)-5,6,5',6'-DIEPOXY-5,6,5',6'- TETRAHYDRO-BETA,BETA-CAROTENE-3,3'-DIOL ;
Molecular weight formula_weight	600.9 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 5 Entity 5 non-polymer

Description description	CHLOROPHYLL A
Molecular weight formula_weight	893.5 kDa
Source method src_method	syn
Copy count entity_count	24

Entity 6 Entity 6 non-polymer

Description description	CHLOROPHYLL B
Molecular weight formula_weight	907.5 kDa
Source method src_method	syn
Copy count entity_count	18

Entity 7 Entity 7 non-polymer

Description description	1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
Molecular weight formula_weight	723.0 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 8 Entity 8 non-polymer

Description description	DIGALACTOSYL DIACYL GLYCEROL (DGDG)
Molecular weight formula_weight	949.3 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 9 Entity 9 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	21

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_id	d2bhwa_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.43 — Chlorophyll a-b binding protein
Superfamily Superfamily superfamily	f.43.1 — Chlorophyll a-b binding protein
Family Family family	f.43.1.1 — Chlorophyll a-b binding protein

Domain ID domain_id	d2bhwb_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.43 — Chlorophyll a-b binding protein
Superfamily Superfamily superfamily	f.43.1 — Chlorophyll a-b binding protein
Family Family family	f.43.1.1 — Chlorophyll a-b binding protein

Domain ID domain_id	d2bhwc_
Class class	f — Membrane and cell surface proteins and peptides
Fold Fold fold	f.43 — Chlorophyll a-b binding protein
Superfamily Superfamily superfamily	f.43.1 — Chlorophyll a-b binding protein
Family Family family	f.43.1.1 — Chlorophyll a-b binding protein

CATH v4.4 (3 domains)

Domain ID domain_id	2bhwA01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	3460 — Chlorophyll a-b binding protein
Homologous superfamily homologous superfamily	10 — Chlorophyll a/b binding protein domain

Domain ID domain_id	2bhwB01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	3460 — Chlorophyll a-b binding protein
Homologous superfamily homologous superfamily	10 — Chlorophyll a/b binding protein domain

Domain ID domain_id	2bhwC01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	3460 — Chlorophyll a-b binding protein
Homologous superfamily homologous superfamily	10 — Chlorophyll a/b binding protein domain

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Unit-cell length a length_a	211.400 Å
Unit-cell length b length_b	128.000 Å
Unit-cell length c length_c	62.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	101.80 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	12

Space group space_group	C 1 2 1
Space-group number int_tables_number	5
Crystal system crystal_system	—

Resolution resolution	2.500 Å
Low-resolution limit resolution_low	50.000 Å
R factor r_factor	0.2196
R_work r_work	0.2196
R_free r_free	0.2412

PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION

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

CHLOROPHYLL A-B BINDING PROTEIN AB80

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

2bhw__assembly_1__model_1

2bhw__assembly_1__model_1 | I(q)

2bhw__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (9)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

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 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (2)

PEA LIGHT-HARVESTING COMPLEX II AT 2.5 ANGSTROM RESOLUTION

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

CHLOROPHYLL A-B BINDING PROTEIN AB80

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

2bhw__assembly_1__model_1

2bhw__assembly_1__model_1 | I(q)

2bhw__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (9)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

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 water

6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

CATH v4.4 (3 domains)

7. Citations (2)