SAXSdb — 8z4v

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

Light-harvesting protein B:800-850 subunit beta

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	Light-harvesting protein B-800/850 alpha chain × 8 （W8KE12） BACTERIOCHLOROPHYLL A × 24 Anhydrorhodovibrin × 8 water × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	W8KQR0_9GAMM
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–46； UniProt 1–46 Author chain D； PDBConstruct 1–46； UniProt 1–46 Author chain G； PDBConstruct 1–46； UniProt 1–46 Author chain J； PDBConstruct 1–46； UniProt 1–46 Author chain M； PDBConstruct 1–46； UniProt 1–46 Author chain P； PDBConstruct 1–46； UniProt 1–46 Author chain S； PDBConstruct 1–46； UniProt 1–46 Author chain V； PDBConstruct 1–46； UniProt 1–46

Light-harvesting protein B-800/850 alpha chain

OrganismNot specified

UniProt W8KE12

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	Light-harvesting protein B:800-850 subunit beta × 8 （W8KQR0） BACTERIOCHLOROPHYLL A × 24 Anhydrorhodovibrin × 8 water × 16	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	W8KE12_9GAMM
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 1–70； UniProt 1–70 Author chain E； PDBConstruct 1–70； UniProt 1–70 Author chain H； PDBConstruct 1–70； UniProt 1–70 Author chain K； PDBConstruct 1–70； UniProt 1–70 Author chain N； PDBConstruct 1–70； UniProt 1–70 Author chain Q； PDBConstruct 1–70； UniProt 1–70 Author chain T； PDBConstruct 1–70； UniProt 1–70 Author chain W； PDBConstruct 1–70； UniProt 1–70

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	8z4v
Deposition date deposition_date	2024-04-17
Structure title title	LH2 complex from Ectothiorhodospira haloalkaliphila at near-atomic resolution
Keywords keywords	PHOTOSYNTHESIS, Light-harvesing, purple sulfur bacteria, cryo-EM; 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.

8z4v__assembly_1__model_1

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

Download this curve (.dat)

8z4v__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8z4v__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	31.29 Å
Rg (electron density)	29.32 Å
Total Rg	30.42 Å
Atom count	8304
Residues	784
Excluded volume	154150 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8z4v__assembly_1__model_1`	hexadecameric （16）	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 (5)

Entity 1 Entity 1 polymer

Description description	Light-harvesting protein B:800-850 subunit beta
Molecular weight formula_weight	5468.2 kDa
Source method src_method	nat
Copy count entity_count	8

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,D,G,J,M,P,S,V
Atom count atom_count	8392

MYDNSISGLTEEQAKEFHEQFKTTFTVFMVLAAAAHFLVFLWRPFY

Entity 2 Entity 2 polymer

Description description	Light-harvesting protein B-800/850 alpha chain
Molecular weight formula_weight	7855.9 kDa
Source method src_method	nat
Copy count entity_count	8

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,E,H,K,N,Q,T,W

MSEYRPSKPSNPRDDWKLWLVVNPGTWLMPILMAVLVVALVVHAFVYSNDNYNPLTFDASAEVAAEEAAE

Entity 3 Entity 3 non-polymer

Description description	BACTERIOCHLOROPHYLL A
Molecular weight formula_weight	911.5 kDa
Source method src_method	syn
Copy count entity_count	24

Entity 4 Entity 4 non-polymer

Description description	Anhydrorhodovibrin
Molecular weight formula_weight	566.9 kDa
Source method src_method	syn
Copy count entity_count	8

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	88

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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	—

Resolution resolution	1.700 Å
Low-resolution limit resolution_low	93.800 Å
R factor r_factor	—
R_work r_work	0.2387
R_free r_free	—

Resolution resolution	1.70 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	324434

LH2 complex from Ectothiorhodospira haloalkaliphila at near-atomic resolution

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

Light-harvesting protein B:800-850 subunit beta

State in the Current Structure

Other States of the Same Protein in the Database

Light-harvesting protein B-800/850 alpha chain

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

8z4v__assembly_1__model_1

8z4v__assembly_1__model_1 | I(q)

8z4v__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)

LH2 complex from Ectothiorhodospira haloalkaliphila at near-atomic resolution

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

Light-harvesting protein B:800-850 subunit beta

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Light-harvesting protein B-800/850 alpha chain

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

8z4v__assembly_1__model_1

8z4v__assembly_1__model_1 | I(q)

8z4v__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 polymer

Polymer Polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Citations (1)