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1gxk

SMC hinge domain from T. maritima w/o coiled coil, P212121 crystal form

Method: X-RAY DIFFRACTION
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1. Protein Identity and Related Structures Protein Identity & Related Structures

CHROMOSOME SEGREGATION SMC PROTEIN

THERMOTOGA MARITIMA

UniProt Q9X0R4

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 No other associated polymer Consistent with protein count
2 Protein homooligomer Homooligomer Protein 2 No other associated polymer Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1e69 1e69 1e69 1e69 1e69 1e69

6 assemblies

Homodimer
1gxj 1gxk 1gxk 1gxl 1gxl

5 assemblies

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name Q9X0R4
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–186； UniProt 485–670 Author chain B； PDBConstruct 1–186； UniProt 485–670 Author chain C； PDBConstruct 1–186； UniProt 485–670 Author chain D； PDBConstruct 1–186； UniProt 485–670

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_id1gxk
Deposition date deposition_date2002-04-07
Structure title titleSMC hinge domain from T. maritima w/o coiled coil, P212121 crystal form
Keywords keywordsCHROMOSOME SEGREGATION, SMC DIMERISATION DOMAIN, ANTI PARALLEL COILED COIL, SMC PROTEINS, COMPLETE PROTEOME.; CHROMOSOME SEGREGATION
Experimental Method methodX-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.

1gxk__assembly_1__model_1

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

Download this curve (.dat)

1gxk__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.

1gxk__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）21.38 Å
Rg (electron density)20.13 Å
Total Rg20.99 Å
Atom count2455
Residues319
Excluded volume44025 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1gxk__assembly_1__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1gxk__assembly_2__model_1 dimeric （2） 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) 4 domains

SCOP 2.08 (4 domains)

Domain ID domain_idd1gxka_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.215 — Smc hinge domain
Superfamily Superfamily superfamilyd.215.1 — Smc hinge domain
Family Family familyd.215.1.1 — Smc hinge domain
Domain ID domain_idd1gxkb_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.215 — Smc hinge domain
Superfamily Superfamily superfamilyd.215.1 — Smc hinge domain
Family Family familyd.215.1.1 — Smc hinge domain
Domain ID domain_idd1gxkc_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.215 — Smc hinge domain
Superfamily Superfamily superfamilyd.215.1 — Smc hinge domain
Family Family familyd.215.1.1 — Smc hinge domain
Domain ID domain_idd1gxkd_
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.215 — Smc hinge domain
Superfamily Superfamily superfamilyd.215.1 — Smc hinge domain
Family Family familyd.215.1.1 — Smc hinge domain
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7. Citations (1)