1xw2

Structure Of A Cold-Adapted Family 8 Xylanase

Method: X-RAY DIFFRACTION

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

Endo-1,4-beta-Xylanase

Pseudoalteromonas haloplanktis

UniProt Q8RJN8

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 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 Q8RJN8_ALTHA
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–405; UniProt 22–426

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.

2. Structure Basics 2. Structure Basics

Entry ID entry_id1xw2
Deposition date deposition_date2004-10-29
Structure title titleStructure Of A Cold-Adapted Family 8 Xylanase
Keywords keywordsHYDROLASE, XYLAN DEGRADATION, PSYCHROPHILIC, COLD ADAPTATION, TEMPERATURE, GLYCOSYL HYDROLASE, FAMILY 8; HYDROLASE
Experimental Method methodX-RAY DIFFRACTION

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.

1xw2__assembly_1__model_1

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

Download this curve (.dat)

1xw2__assembly_1__model_1 | I(q)

10-2 10-1 105 106 107 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1xw2__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg(Guinier)21.17 Å
Rg (electron density)19.83 Å
Total Rg20.76 Å
Atom count3226
Residues404
Excluded volume56567 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1xw2__assembly_1__model_1 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (2)

6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1xw2a1
Class classa — All alpha proteins
Fold Fold folda.102 — alpha/alpha toroid
Superfamily Superfamily superfamilya.102.1 — Six-hairpin glycosidases
Family Family familya.102.1.2 — Cellulases catalytic domain

CATH v4.4 (1 domains)

Domain ID domain_id1xw2A00
Class class1 — Mainly Alpha
Architecture architecture50 — Alpha/alpha barrel
Topology topology10 — Glycosyltransferase
Homologous superfamily homologous superfamily10

7. Citations (1)