SAXSdb — 2fgl

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

alkaline thermostable endoxylanase

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Other combination	Monomer	Protein 1 其他Polymer 1	alpha-D-xylopyranose-(1-1)-alpha-D-xylopyranose × 1 alpha-D-xylopyranose × 3 MAGNESIUM ION × 2 water × 1	Consistent with protein count
2	Other combination	Monomer	Protein 1 其他Polymer 1	alpha-D-xylopyranose-(1-1)-alpha-D-xylopyranose × 1 alpha-D-xylopyranose × 1 MAGNESIUM ION × 2 beta-L-xylopyranose × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	O30700_9BACI
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–354； UniProt 52–405 Author chain B； PDBConstruct 1–354； UniProt 52–405

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	2fgl
Deposition date deposition_date	2005-12-22
Structure title title	An alkali thermostable F/10 xylanase from alkalophilic Bacillus sp. NG-27
Keywords keywords	F/10 family alkali-thermostable xylanase, 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.

2fgl__assembly_1__model_1

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

Download this curve (.dat)

2fgl__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

2fgl__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	21.40 Å
Rg (electron density)	20.32 Å
Total Rg	21.19 Å
Atom count	2932
Residues	354
Excluded volume	51380 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`2fgl__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`2fgl__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 (6)

Entity 1 Entity 1 polymer

Description description	alkaline thermostable endoxylanase
Molecular weight formula_weight	40982.2 kDa
EC 编号 ec_number	3.2.1.8
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	6378

VQPFAWQVASLADRYEESFDIGAAVEPHQLNGRQGKVLKHHYNSIVAENAMKPISLQPEEGVFTWDGADAIVEFARKNNMNLRFHTLVWHNQVPDWFFLDEEGNPMVEETNEAKRQANKELLLERLETHIKTVVERYKDDVTAWDVVNEVVDDGTPNERGLRESVWYQITGDEYIRVAFETARKYAGEDAKLFINDYNTEVTPKRDHLYNLVQDLLADGVPIDGVGHQAHIQIDWPTIDEIRTSMEMFAGLGLDNQVTELDVSLYGWPPRPAFPTYDAIPQERFQAQADRYNQLFELYEELDADLSSVTFWGIADNHTWLDDRAREYNDGVGKDAPFVFDPNYRVKPAFWRIID

Entity 2 Entity 2 branched

Description description	alpha-D-xylopyranose-(1-1)-alpha-D-xylopyranose
Molecular weight formula_weight	282.2 kDa
Source method src_method	man
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	alpha-D-xylopyranose
Molecular weight formula_weight	150.1 kDa
Source method src_method	man
Copy count entity_count	4

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	4

Entity 5 Entity 5 non-polymer

Description description	beta-L-xylopyranose
Molecular weight formula_weight	150.1 kDa
Source method src_method	man
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	523

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_id	d2fgla_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.8 — (Trans)glycosidases
Family Family family	c.1.8.3 — beta-glycanases

Domain ID domain_id	d2fglb_
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.1 — TIM beta/alpha-barrel
Superfamily Superfamily superfamily	c.1.8 — (Trans)glycosidases
Family Family family	c.1.8.3 — beta-glycanases

CATH v4.4 (2 domains)

Domain ID domain_id	2fglA00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	80 — Glycosidases

Domain ID domain_id	2fglB00
Class class	3 — Alpha Beta
Architecture architecture	20 — Alpha-Beta Barrel
Topology topology	20 — TIM Barrel
Homologous superfamily homologous superfamily	80 — Glycosidases

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Unit-cell length a length_a	59.188 Å
Unit-cell length b length_b	84.200 Å
Unit-cell length c length_c	174.701 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	2.200 Å
Low-resolution limit resolution_low	49.000 Å
R factor r_factor	0.2180
R_work r_work	0.2180
R_free r_free	0.2580

An alkali thermostable F/10 xylanase from alkalophilic Bacillus sp. NG-27

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

alkaline thermostable endoxylanase

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

2fgl__assembly_1__model_1

2fgl__assembly_1__model_1 | I(q)

2fgl__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

Entity 2 Entity 2 branched

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 (2)

An alkali thermostable F/10 xylanase from alkalophilic Bacillus sp. NG-27

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

alkaline thermostable endoxylanase

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

2fgl__assembly_1__model_1

2fgl__assembly_1__model_1 | I(q)

2fgl__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

Entity 2 Entity 2 branched

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 (2)