1aln

CRYSTAL STRUCTURE OF CYTIDINE DEAMINASE COMPLEXED WITH 3-DEAZACYTIDINE

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

CYTIDINE DEAMINASE

Escherichia coli

UniProt P0ABF6

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 2 ZINC ION × 2 3-DEAZACYTIDINE × 2 water × 2 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name CDD_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–294; UniProt 1–294

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_id1aln
Deposition date deposition_date1997-06-02
Structure title titleCRYSTAL STRUCTURE OF CYTIDINE DEAMINASE COMPLEXED WITH 3-DEAZACYTIDINE
Keywords keywordsCYTIDINE DEAMINASE, VALENCE BUFFER, ZINC ENZYME, SUBSTRATE, HYDROLASE; HYDROLASE
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.

1aln__assembly_1__model_1

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

Download this curve (.dat)

1aln__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.

1aln__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)24.80 Å
Rg (electron density)23.97 Å
Total Rg24.70 Å
Atom count4476
Residues588
Excluded volume79502 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1aln__assembly_1__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 (4)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1alna1
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.97 — Cytidine deaminase-like
Superfamily Superfamily superfamilyc.97.1 — Cytidine deaminase-like
Family Family familyc.97.1.1 — Cytidine deaminase
Domain ID domain_idd1alna2
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.97 — Cytidine deaminase-like
Superfamily Superfamily superfamilyc.97.1 — Cytidine deaminase-like
Family Family familyc.97.1.1 — Cytidine deaminase

CATH v4.4 (2 domains)

Domain ID domain_id1alnA01
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology140 — Cytidine Deaminase; domain 2
Homologous superfamily homologous superfamily10 — Cytidine Deaminase, domain 2
Domain ID domain_id1alnA02
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology140 — Cytidine Deaminase; domain 2
Homologous superfamily homologous superfamily10 — Cytidine Deaminase, domain 2
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7. Citations (1)