SAXSdb — 1h1a

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

Endo-1,4-beta-xylanase

Chaetomium thermophilum

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	Q8J1V6_9PEZI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–191； UniProt 27–217 Author chain B； PDBConstruct 1–191； UniProt 27–217

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	1h1a
Deposition date deposition_date	2002-07-05
Structure title title	Thermophilic beta-1,4-xylanase from Chaetomium thermophilum
Keywords keywords	HYDROLASE, XYLANASE, GLYCOSYL HYDROLASE, FAMILY 11, THERMOSTABILITY GLYCOSIDASE; 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.

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1h1a__assembly_1__model_1`	monomeric （1）	Excluded	—	—
	Exclusion reason： The source record does not identify the atom or ion element unambiguously, so a reliable calculation is not possible.
2	1	`1h1a__assembly_2__model_1`	monomeric （1）	Excluded	—	—
	Exclusion reason： The source record does not identify the atom or ion element unambiguously, so a reliable calculation is not possible.

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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	Endo-1,4-beta-xylanase
Molecular weight formula_weight	21090.7 kDa
EC 编号 ec_number	3.2.1.8
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	3637

QTLTSSATGTHNGYYYSFWTDGQGNIRFNLESGGQYSVTWSGNGNWVGGKGWNPGTDNRVINYTADYRPNGNSYLAVYGWTRNPLIEYYVVESFGTYDPSTGATRMGSVTTDGGTYNIYRTQRVNAPSIEGTKTFYQYWSVRTSKRTGGTVTMANHFNAWRQAGLQLGSHDYQIVATEGYYSSGSATVNVG

Source Source

Source organism organism	Chaetomium thermophilum
NCBI taxonomy ID ncbi_taxonomy_id	209285
Host organism host_organism	TRICHODERMA REESEI

Entity 2 Entity 2 non-polymer

Description description	UNKNOWN ATOM OR ION
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	SULFATE ION
Molecular weight formula_weight	96.1 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	CALCIUM ION
Molecular weight formula_weight	40.1 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	603

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d1h1aa_
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	d1h1ab_
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	1h1aA00
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	1h1aB00
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	108.240 Å
Unit-cell length b length_b	57.150 Å
Unit-cell length c length_c	65.680 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 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	1.750 Å
Low-resolution limit resolution_low	99.000 Å
R factor r_factor	0.1790
R_work r_work	0.1790
R_free r_free	0.2160

Thermophilic beta-1,4-xylanase from Chaetomium thermophilum

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

Endo-1,4-beta-xylanase

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

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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)

Thermophilic beta-1,4-xylanase from Chaetomium thermophilum

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

Endo-1,4-beta-xylanase

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

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) 4 domains

SCOP 2.08 (2 domains)

CATH v4.4 (2 domains)

7. Citations (1)