SAXSdb — 1bvw

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

PROTEIN (CELLOBIOHYDROLASE II)

Humicola insolens

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	alpha-D-mannopyranose × 2 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 MAGNESIUM ION × 1 GLYCEROL × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q9C1S9_HUMIN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–360； UniProt 91–450

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	1bvw
Deposition date deposition_date	1998-09-19
Structure title title	CELLOBIOHYDROLASE II (CEL6A) FROM HUMICOLA INSOLENS
Keywords keywords	CELLULOSE DEGRADATION, CELLOBIOHYDROLASE, CELLULASE, GLYCOSIDE HYDROLASE FAMILY 6, HYDROLASE; 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.

1bvw__assembly_1__model_1

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

Download this curve (.dat)

1bvw__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1bvw__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	20.46 Å
Rg (electron density)	19.31 Å
Total Rg	20.29 Å
Atom count	2850
Residues	360
Excluded volume	50138 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1bvw__assembly_1__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 (6)

Entity 1 Entity 1 polymer

Description description	PROTEIN (CELLOBIOHYDROLASE II)
Molecular weight formula_weight	39737.2 kDa
EC 编号 ec_number	3.2.1.91
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A
Atom count atom_count	3403

GNPFEGVQLWANNYYRSEVHTLAIPQITDPALRAAASAVAEVPSFQWLDRNVTVDTLLVQTLSEIREANQAGANPQYAAQIVVYDLPDRDCAAAASNGEWAIANNGVNNYKAYINRIREILISFSDVRTILVIEPDSLANMVTNMNVPKCSGAASTYRELTIYALKQLDLPHVAMYMDAGHAGWLGWPANIQPAAELFAKIYEDAGKPRAVRGLATNVANYNAWSVSSPPPYTSPNPNYDEKHYIEAFRPLLEARGFPAQFIVDQGRSGKQPTGQKEWGHWCNAIGTGFGMRPTANTGHQYVDAFVWVKPGGECDGTSDTTAARYDYHCGLEDALKPAPEAGQWFNEYFIQLLRNANPPF

Source Source

Source organism organism	Humicola insolens
NCBI taxonomy ID ncbi_taxonomy_id	34413
Host organism host_organism	Aspergillus oryzae

Entity 2 Entity 2 non-polymer

Description description	alpha-D-mannopyranose
Molecular weight formula_weight	180.2 kDa
Source method src_method	man
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	2-acetamido-2-deoxy-beta-D-glucopyranose
Molecular weight formula_weight	221.2 kDa
Source method src_method	man
Copy count entity_count	1

Entity 4 Entity 4 non-polymer

Description description	MAGNESIUM ION
Molecular weight formula_weight	24.3 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 5 Entity 5 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	1

Entity 6 Entity 6 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	531

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_id	d1bvwa_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.6 — 7-stranded beta/alpha barrel
Superfamily Superfamily superfamily	c.6.1 — Glycosyl hydrolases family 6, cellulases
Family Family family	c.6.1.1 — Glycosyl hydrolases family 6, cellulases

CATH v4.4 (1 domains)

Domain ID domain_id	1bvwA00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	40 — 1, 4-beta cellobiohydrolase

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Unit-cell length a length_a	47.510 Å
Unit-cell length b length_b	68.100 Å
Unit-cell length c length_c	53.710 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	110.93 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	2

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	1.920 Å
Low-resolution limit resolution_low	15.000 Å
R factor r_factor	—
R_work r_work	0.1420
R_free r_free	0.2100

CELLOBIOHYDROLASE II (CEL6A) FROM HUMICOLA INSOLENS

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

PROTEIN (CELLOBIOHYDROLASE II)

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

1bvw__assembly_1__model_1

1bvw__assembly_1__model_1 | I(q)

1bvw__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

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 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)

CELLOBIOHYDROLASE II (CEL6A) FROM HUMICOLA INSOLENS

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

PROTEIN (CELLOBIOHYDROLASE II)

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

1bvw__assembly_1__model_1

1bvw__assembly_1__model_1 | I(q)

1bvw__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 (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

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 water

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

CATH v4.4 (1 domains)

7. Citations (1)