SAXSdb — 2bw8

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

ENDOGLUCANASE

RHODOTHERMUS MARINUS

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	SULFATE ION × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	O33897_RHOMR
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 2–68； UniProt 38–104 Author chain A； PDBConstruct 94–225； UniProt 129–260 Author chain B； PDBConstruct 2–68； UniProt 38–104 Author chain B； PDBConstruct 94–225； UniProt 129–260

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	2bw8
Deposition date deposition_date	2005-07-13
Structure title title	Native structure of Endoglucanase 12A (Cel12A) from Rhodothermus marinus
Keywords keywords	HYDROLASE, ENDOGLUCANASE, CELLULASE, GLYCOSIDE HYDROLASE FAMILY 12; HYDROLASE
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.

2bw8__assembly_1__model_1

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

Download this curve (.dat)

2bw8__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2bw8__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	17.77 Å
Rg (electron density)	16.26 Å
Total Rg	17.44 Å
Atom count	1779
Residues	226
Excluded volume	31067 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2bw8__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2bw8__assembly_2__model_1`	monomeric （1）	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	ENDOGLUCANASE
Molecular weight formula_weight	25211.9 kDa
EC 编号 ec_number	3.2.1.4
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	4220

MTVELCGRWDARDVAGGRYRVINNVWGAETAQCIEVGLETGNFTITRADHDNGNNVAAYPAIYFGCHWGACTSNSGLPRRVQELSDVRTSWTLTPITTGRWNAAYDIWFSPVTNSGNGYSGGAELMIWLNWNGGVMPGGSRVATVELAGATWEVWYADWDWNYIAYRRTTPTTSVSELDLKAFIDDAVARGYIRPEWYLHAVETGFELWEGGAGLRSADFSVTVQKL

Source Source

Source organism organism	RHODOTHERMUS MARINUS
NCBI taxonomy ID ncbi_taxonomy_id	29549
Host organism host_organism	Escherichia coli BL21(DE3)

Entity 2 Entity 2 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	399

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2bw8a_
Class class	b — All beta proteins
Fold Fold fold	b.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamily	b.29.1 — Concanavalin A-like lectins/glucanases
Family Family family	b.29.1.11 — Xylanase/endoglucanase 11/12

Domain ID domain_id	d2bw8b_
Class class	b — All beta proteins
Fold Fold fold	b.29 — Concanavalin A-like lectins/glucanases
Superfamily Superfamily superfamily	b.29.1 — Concanavalin A-like lectins/glucanases
Family Family family	b.29.1.11 — Xylanase/endoglucanase 11/12

CATH v4.4 (2 domains)

Domain ID domain_id	2bw8A00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	180 — Glycoside hydrolase family 11/12, catalytic domain

Domain ID domain_id	2bw8B00
Class class	2 — Mainly Beta
Architecture architecture	60 — Sandwich
Topology topology	120 — Jelly Rolls
Homologous superfamily homologous superfamily	180 — Glycoside hydrolase family 11/12, catalytic domain

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Unit-cell length a length_a	56.283 Å
Unit-cell length b length_b	67.867 Å
Unit-cell length c length_c	132.458 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 21 21 21
Space-group number int_tables_number	19
Crystal system crystal_system	—

Resolution resolution	1.540 Å
Low-resolution limit resolution_low	22.600 Å
R factor r_factor	0.1570
R_work r_work	0.1570
R_free r_free	0.1800

Native structure of Endoglucanase 12A (Cel12A) from Rhodothermus marinus

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

ENDOGLUCANASE

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

2bw8__assembly_1__model_1

2bw8__assembly_1__model_1 | I(q)

2bw8__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

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Native structure of Endoglucanase 12A (Cel12A) from Rhodothermus marinus

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

ENDOGLUCANASE

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

2bw8__assembly_1__model_1

2bw8__assembly_1__model_1 | I(q)

2bw8__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

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)