1k45

The Solution Structure of the CBM4-2 Carbohydrate Binding Module from a Thermostable Rhodothermus marinus Xylanase.

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Xylanase

Rhodothermus marinus

UniProt P96988

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name P96988_RHOMR
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 2–164; UniProt 211–373

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_id1k45
Deposition date deposition_date2001-10-05
Structure title titleThe Solution Structure of the CBM4-2 Carbohydrate Binding Module from a Thermostable Rhodothermus marinus Xylanase.
Keywords keywords;beta-sandwich formed by 11 strands. Binding-site cleft. Solvent exposed aromatics (Trp69, Phe110) in binding cleft. Two helical twists. Two calcium binding sites., Hydrolase ;; HYDROLASE
Experimental Method methodSOLUTION NMR
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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.

1k45__assembly_1__model_1

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

Download this curve (.dat)

1k45__assembly_1__model_1 | I(q)

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

1k45__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)16.42 Å
Rg (electron density)15.05 Å
Total Rg16.23 Å
Atom count2490
Residues168
Excluded volume22531 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1k45__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 (1)

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6. Fold Classification (SCOP + CATH) 3 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1k45a1
Class classb — All beta proteins
Fold Fold foldb.18 — Galactose-binding domain-like
Superfamily Superfamily superfamilyb.18.1 — Galactose-binding domain-like
Family Family familyb.18.1.14 — CBM4/9
Domain ID domain_idd1k45a2
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (1 domains)

Domain ID domain_id1k45A00
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology120 — Jelly Rolls
Homologous superfamily homologous superfamily260 — Galactose-binding domain-like
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7. Citations (1)