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1e5k

CRYSTAL STRUCTURE OF THE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN MOBA (PROTEIN FA) FROM ESCHERICHIA COLI AT NEAR ATOMIC RESOLUTION

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

MOLYBDOPTERIN-GUANINE DINUCLEOTIDE BIOSYNTHESIS PROTEIN A

ESCHERICHIA COLI

UniProt P32173

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 LITHIUM ION × 1 CITRIC ACID × 2 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

Monomer
1e5k 1h4c 1h4d 1h4e 1hjj 1hjl

6 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers
1fr9 1frw

2 assemblies

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name MOBA_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–194； UniProt 1–194

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_id1e5k
Deposition date deposition_date2000-07-27
Structure title titleCRYSTAL STRUCTURE OF THE MOLYBDENUM COFACTOR BIOSYNTHESIS PROTEIN MOBA (PROTEIN FA) FROM ESCHERICHIA COLI AT NEAR ATOMIC RESOLUTION
Keywords keywordsMOLYBDOPTERIN NUCLEOTIDYL-TRANSFERASE; MOLYBDOPTERIN NUCLEOTIDYL-TRANSFERASE
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.

1e5k__assembly_1__model_1

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

Download this curve (.dat)

1e5k__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.

1e5k__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）17.03 Å
Rg (electron density)15.70 Å
Total Rg16.69 Å
Atom count1450
Residues188
Excluded volume25633 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1e5k__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 (4)

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6. Fold Classification (SCOP + CATH) 2 domains

SCOP 2.08 (1 domains)

Domain ID domain_idd1e5ka_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.68 — Nucleotide-diphospho-sugar transferases
Superfamily Superfamily superfamilyc.68.1 — Nucleotide-diphospho-sugar transferases
Family Family familyc.68.1.8 — Molybdenum cofactor biosynthesis protein MobA

CATH v4.4 (1 domains)

Domain ID domain_id1e5kA00
Class class3 — Alpha Beta
Architecture architecture90 — Alpha-Beta Complex
Topology topology550 — Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A
Homologous superfamily homologous superfamily10 — Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A
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7. Citations (1)