1yt3

Crystal Structure of Escherichia coli RNase D, an exoribonuclease involved in structured RNA processing

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

Ribonuclease D

Escherichia coli

UniProt P09155

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein monomer Monomer Protein 1 SULFATE ION × 7 ZINC ION × 5 water × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RND_ECOLI
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 1–375; UniProt 1–375

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_id1yt3
Deposition date deposition_date2005-02-09
Structure title titleCrystal Structure of Escherichia coli RNase D, an exoribonuclease involved in structured RNA processing
Keywords keywordsRNase; exoribonuclease; ribonuclease; exonuclease; nuclease; hydrolase; tRNA processing, HYDROLASE, TRANSLATION; HYDROLASE,TRANSLATION
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.

1yt3__assembly_1__model_1

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

Download this curve (.dat)

1yt3__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.

1yt3__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)25.04 Å
Rg (electron density)24.15 Å
Total Rg24.98 Å
Atom count3047
Residues375
Excluded volume54344 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1yt3__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) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1yt3a1
Class classa — All alpha proteins
Fold Fold folda.60 — SAM domain-like
Superfamily Superfamily superfamilya.60.8 — HRDC-like
Family Family familya.60.8.3 — RNase D C-terminal domains
Domain ID domain_idd1yt3a2
Class classa — All alpha proteins
Fold Fold folda.60 — SAM domain-like
Superfamily Superfamily superfamilya.60.8 — HRDC-like
Family Family familya.60.8.3 — RNase D C-terminal domains
Domain ID domain_idd1yt3a3
Class classc — Alpha and beta proteins (a/b)
Fold Fold foldc.55 — Ribonuclease H-like motif
Superfamily Superfamily superfamilyc.55.3 — Ribonuclease H-like
Family Family familyc.55.3.5 — DnaQ-like 3'-5' exonuclease

CATH v4.4 (3 domains)

Domain ID domain_id1yt3A01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology420 — Nucleotidyltransferase; domain 5
Homologous superfamily homologous superfamily10 — Ribonuclease H-like superfamily/Ribonuclease H
Domain ID domain_id1yt3A02
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily80 — HRDC domain
Domain ID domain_id1yt3A03
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology150 — DNA polymerase; domain 1
Homologous superfamily homologous superfamily80 — HRDC domain
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7. Citations (1)