SAXSdb — 3g8r

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

Probable spore coat polysaccharide biosynthesis protein E

Chromobacterium violaceum ATCC 12472

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein homooligomer	Homooligomer	Protein 2	ZINC ION × 2 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q7NR94_CHRVO
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 4–342； UniProt 2–340 Author chain B； PDBConstruct 4–342； UniProt 2–340

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	3g8r
Deposition date deposition_date	2009-02-12
Structure title title	Crystal structure of putative spore coat polysaccharide biosynthesis protein E from Chromobacterium violaceum ATCC 12472
Keywords keywords	;STRUCTURAL GENOMICS, PROTEIN STRUCTURE INITIATIVE, NEW YORK STRUCTURAL GENOMIX RESEARCH CONSORTIUM, NYSGXRC, spore coat polysaccharide biosynthesis protein E, BIOSYNTHETIC PROTEIN, PSI-2, New York SGX Research Center for Structural Genomics ;; BIOSYNTHETIC PROTEIN
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.

3g8r__assembly_1__model_1

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

Download this curve (.dat)

3g8r__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

3g8r__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	32.20 Å
Rg (electron density)	32.10 Å
Total Rg	32.29 Å
Atom count	5287
Residues	653
Excluded volume	93960 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`3g8r__assembly_1__model_1`	dimeric （2）	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 (3)

Entity 1 Entity 1 polymer

Description description	Probable spore coat polysaccharide biosynthesis protein E
Molecular weight formula_weight	39730.2 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	5420

MSLSKPLFIFEMANNHMGNVEHGVALIRAIRESCQGFDFDFGFKLQYRNLDTFIHSSFKGRDDVKYVKRFEETRLQPEQMQKLVAEMKANGFKAICTPFDEESVDLIEAHGIEIIKIASCSFTDWPLLERIARSDKPVVASTAGARREDIDKVVSFMLHRGKDLTIMHCVAEYPTPDDHLHLARIKTLRQQYAGVRIGYSTHEDPDLMEPIMLAVAQGATVFEKHVGLPTDQYGINNYSANPEQVRRWLAAAARALAMLGDGEDDAVSETEQASLRSLRRGVFATRPVAAGEALTADNVSFAFPPVEGQLTANEWSKYVRYTAKTPIAADAPVMAADLEPVNEGHHHHHH

Source Source

Source organism organism	Chromobacterium violaceum ATCC 12472
NCBI taxonomy ID ncbi_taxonomy_id	243365
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	ZINC ION
Molecular weight formula_weight	65.4 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	125

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6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

Domain ID domain_id	3g8rA01
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

Domain ID domain_id	3g8rA02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1210 — Type Iii Antifreeze Protein Isoform Hplc 12
Homologous superfamily homologous superfamily	10 — Antifreeze-like/N-acetylneuraminic acid synthase C-terminal domain

Domain ID domain_id	3g8rB01
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	70 — Aldolase class I

Domain ID domain_id	3g8rB02
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	1210 — Type Iii Antifreeze Protein Isoform Hplc 12
Homologous superfamily homologous superfamily	10 — Antifreeze-like/N-acetylneuraminic acid synthase C-terminal domain

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Unit-cell length a length_a	107.672 Å
Unit-cell length b length_b	107.672 Å
Unit-cell length c length_c	164.799 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	16

Space group space_group	P 41 21 2
Space-group number int_tables_number	92
Crystal system crystal_system	—

Resolution resolution	2.490 Å
Low-resolution limit resolution_low	20.000 Å
R factor r_factor	0.2120
R_work r_work	0.2080
R_free r_free	0.2780

Crystal structure of putative spore coat polysaccharide biosynthesis protein E from Chromobacterium violaceum ATCC 12472

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

Probable spore coat polysaccharide biosynthesis protein E

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

3g8r__assembly_1__model_1

3g8r__assembly_1__model_1 | I(q)

3g8r__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)

Crystal structure of putative spore coat polysaccharide biosynthesis protein E from Chromobacterium violaceum ATCC 12472

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

Probable spore coat polysaccharide biosynthesis protein E

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

3g8r__assembly_1__model_1

3g8r__assembly_1__model_1 | I(q)

3g8r__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 (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

6. Fold Classification (SCOP + CATH) 4 domains

CATH v4.4 (4 domains)

7. Citations (1)