1ib8

SOLUTION STRUCTURE AND FUNCTION OF A CONSERVED PROTEIN SP14.3 ENCODED BY AN ESSENTIAL STREPTOCOCCUS PNEUMONIAE GENE

Method: SOLUTION NMR

1. Protein Identity and Related Structures Protein Identity & Related Structures

CONSERVED PROTEIN SP14.3

Streptococcus pneumoniae

UniProt Q97S61

State in the Current Structure

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

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name Y552_STRPN
Isoform
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 5–162; UniProt 2–159

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.

2. Structure Basics 2. Structure Basics

Entry ID entry_id1ib8
Deposition date deposition_date2001-03-27
Structure title titleSOLUTION STRUCTURE AND FUNCTION OF A CONSERVED PROTEIN SP14.3 ENCODED BY AN ESSENTIAL STREPTOCOCCUS PNEUMONIAE GENE
Keywords keywordsNUCLEIC ACID BINDING PROTEIN, RIBOSOMAL PROTEIN, ESSENTIAL GENE, STRUCTURAL GENOMICS; NUCLEIC ACID BINDING PROTEIN
Experimental Method methodSOLUTION NMR

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.

1ib8__assembly_1__model_1

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

Download this curve (.dat)

1ib8__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.

1ib8__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)22.12 Å
Rg (electron density)21.42 Å
Total Rg22.26 Å
Atom count2593
Residues164
Excluded volume23250 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1ib8__assembly_1__model_1 monomeric (1) Success 4.1.3-1-20251215 (887e7ef) View Download

4. Crystallography and Experiment 4. Crystallography & Experiment

5. Entities and Polymers Entities & Polymers (1)

6. Fold Classification (SCOP + CATH) 4 domains

SCOP 2.08 (2 domains)

Domain ID domain_idd1ib8a1
Class classb — All beta proteins
Fold Fold foldb.38 — Sm-like fold
Superfamily Superfamily superfamilyb.38.2 — YhbC-like, C-terminal domain
Family Family familyb.38.2.1 — YhbC-like, C-terminal domain
Domain ID domain_idd1ib8a2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.52 — Alpha-lytic protease prodomain-like
Superfamily Superfamily superfamilyd.52.4 — YhbC-like, N-terminal domain
Family Family familyd.52.4.1 — YhbC-like, N-terminal domain

CATH v4.4 (2 domains)

Domain ID domain_id1ib8A01
Class class3 — Alpha Beta
Architecture architecture30 — 2-Layer Sandwich
Topology topology300 — GMP Synthetase; Chain A, domain 3
Homologous superfamily homologous superfamily70 — RimP-like superfamily, N-terminal
Domain ID domain_id1ib8A02
Class class2 — Mainly Beta
Architecture architecture30 — Roll
Topology topology30 — SH3 type barrels.
Homologous superfamily homologous superfamily180 — Ribosome maturation factor RimP, C-terminal domain

7. Citations (1)