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1s7o

Crystal structure of putative DNA binding protein SP_1288 from Streptococcus pygenes

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

Hypothetical UPF0122 protein SPy1201/SpyM3_0842/SPs1042/spyM18_1152

Streptococcus pyogenes serotype M3

UniProt P67253

State in the Current Structure

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

Other States of the Same Protein in the Database

Monomer

None

Homodimer
1s7o 1s7o

2 assemblies

Homotetramer

None

Other homooligomers
1s7o

1 assemblies

Heteromeric or nucleic-acid complex

None

View Construct and Data Evidence
UniProt name Y1201_STRPY
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A； PDBConstruct 1–113； UniProt 1–113 Author chain B； PDBConstruct 1–113； UniProt 1–113 Author chain C； PDBConstruct 1–113； UniProt 1–113

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_id1s7o
Deposition date deposition_date2004-01-29
Structure title titleCrystal structure of putative DNA binding protein SP_1288 from Streptococcus pygenes
Keywords keywords;Putative DNA binding protein; structural genomics, Signal recognition particle, RNA polymerase Sigma Factor, X-Rat crystallography, UPF0122, structure funded by NIH, PSI, Protein Structure Initiative, Berkeley Structural Genomics Center, BSGC, STRUCTURAL GENOMICS, UNKNOWN FUNCTION ;; STRUCTURAL GENOMICS, UNKNOWN FUNCTION
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.

1s7o__assembly_1__model_1

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

Download this curve (.dat)

1s7o__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.

1s7o__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）26.96 Å
Rg (electron density)26.29 Å
Total Rg26.94 Å
Atom count2691
Residues319
Excluded volume47801 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1s7o__assembly_1__model_1 trimeric （3） Success 4.1.3-1-20251215 (887e7ef) View Download
2 1 1s7o__assembly_2__model_1 dimeric （2） Success 4.1.3-1-20251215 (887e7ef) View Download
3 1 1s7o__assembly_3__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 (2)

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6. Fold Classification (SCOP + CATH) 6 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1s7oa_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.13 — Sigma3 and sigma4 domains of RNA polymerase sigma factors
Family Family familya.4.13.3 — YlxM/p13-like
Domain ID domain_idd1s7ob_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.13 — Sigma3 and sigma4 domains of RNA polymerase sigma factors
Family Family familya.4.13.3 — YlxM/p13-like
Domain ID domain_idd1s7oc_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.13 — Sigma3 and sigma4 domains of RNA polymerase sigma factors
Family Family familya.4.13.3 — YlxM/p13-like

CATH v4.4 (3 domains)

Domain ID domain_id1s7oA00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
Domain ID domain_id1s7oB00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
Domain ID domain_id1s7oC00
Class class1 — Mainly Alpha
Architecture architecture10 — Orthogonal Bundle
Topology topology10 — Arc Repressor Mutant, subunit A
Homologous superfamily homologous superfamily10 — Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain
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7. Citations (1)