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1lx7

Structure of E. coli uridine phosphorylase at 2.0A

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

uridine phosphorylase

Escherichia coli

UniProt P12758

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein homooligomer Homooligomer Protein 6 water × 6 Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers
1k3f 1lx7 1rxc 1rxc 1rxs 1rxs 1rxs 1rxs 1rxs 1rxu 1rxu 1rxu

24 assemblies; showing the first 12

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name UDP_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–253； UniProt 1–253 Author chain B； PDBConstruct 1–253； UniProt 1–253

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_id1lx7
Deposition date deposition_date2002-06-04
Structure title titleStructure of E. coli uridine phosphorylase at 2.0A
Keywords keywords;Structural genomics, UDRPase, P12758, phosphorylase, nucleotide metabolism, PSI, Protein Structure Initiative, New York SGX Research Center for Structural Genomics, NYSGXRC, TRANSFERASE ;; 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.

1lx7__assembly_1__model_1

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

Download this curve (.dat)

1lx7__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

1lx7__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）34.54 Å
Rg (electron density)34.03 Å
Total Rg34.52 Å
Atom count10536
Residues1365
Excluded volume188730 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1lx7__assembly_1__model_1 hexameric （6） 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 (2)

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6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1lx7a_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.56 — Phosphorylase/hydrolase-like
Superfamily Superfamily superfamilyc.56.2 — Purine and uridine phosphorylases
Family Family familyc.56.2.1 — Purine and uridine phosphorylases
Domain ID domain_idd1lx7b_
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.56 — Phosphorylase/hydrolase-like
Superfamily Superfamily superfamilyc.56.2 — Purine and uridine phosphorylases
Family Family familyc.56.2.1 — Purine and uridine phosphorylases

CATH v4.4 (2 domains)

Domain ID domain_id1lx7A00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1580 — Nucleoside phosphorylase domain
Domain ID domain_id1lx7B00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology50 — Rossmann fold
Homologous superfamily homologous superfamily1580 — Nucleoside phosphorylase domain
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7. Citations (1)