1z1d

Structural Model for the interaction between RPA32 C-terminal domain and SV40 T antigen origin binding domain.

Method: SOLUTION NMR
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Replication protein A 32 kDa subunit

Homo sapiens

UniProt P15927

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Large T antigen × 1 (P03070) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name RFA2_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain A; PDBConstruct 5–103; UniProt 172–270

Large T antigen

Simian virus 40

UniProt P03070

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 2 Replication protein A 32 kDa subunit × 1 (P15927) Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name TALA_SV40
Isoform —
PDB entities 2
Chains and sequence ranges Author chain B; PDBConstruct 3–131; UniProt 131–259

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_id1z1d
Deposition date deposition_date2005-03-03
Structure title titleStructural Model for the interaction between RPA32 C-terminal domain and SV40 T antigen origin binding domain.
Keywords keywordsWinged Helix-turn-Helix motif, Origin binding domain, Protein-Protein Complex, REPLICATION; REPLICATION
Experimental Method methodSOLUTION NMR
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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.

1z1d__assembly_1__model_1

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

Download this curve (.dat)

1z1d__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.

1z1d__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)19.03 Å
Rg (electron density)18.24 Å
Total Rg19.23 Å
Atom count3193
Residues200
Excluded volume28555 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 1z1d__assembly_1__model_1 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 2 1z1d__assembly_1__model_2 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 3 1z1d__assembly_1__model_3 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 4 1z1d__assembly_1__model_4 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 5 1z1d__assembly_1__model_5 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 6 1z1d__assembly_1__model_6 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 7 1z1d__assembly_1__model_7 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 8 1z1d__assembly_1__model_8 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 9 1z1d__assembly_1__model_9 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 10 1z1d__assembly_1__model_10 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 11 1z1d__assembly_1__model_11 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 12 1z1d__assembly_1__model_12 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 13 1z1d__assembly_1__model_13 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 14 1z1d__assembly_1__model_14 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 15 1z1d__assembly_1__model_15 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 16 1z1d__assembly_1__model_16 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 17 1z1d__assembly_1__model_17 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 18 1z1d__assembly_1__model_18 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 19 1z1d__assembly_1__model_19 dimeric (2) Success 4.1.3-1-20251215 (887e7ef) View Download
1 20 1z1d__assembly_1__model_20 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) 5 domains

SCOP 2.08 (3 domains)

Domain ID domain_idd1z1da_
Class classa — All alpha proteins
Fold Fold folda.4 — DNA/RNA-binding 3-helical bundle
Superfamily Superfamily superfamilya.4.5 — 'Winged helix' DNA-binding domain
Family Family familya.4.5.16 — C-terminal domain of RPA32
Domain ID domain_idd1z1db2
Class classd — Alpha and beta proteins (a+b)
Fold Fold foldd.89 — Origin of replication-binding domain, RBD-like
Superfamily Superfamily superfamilyd.89.1 — Origin of replication-binding domain, RBD-like
Family Family familyd.89.1.1 — The origin DNA-binding domain of SV40 T-antigen
Domain ID domain_idd1z1db3
Class classl — Artifacts
Fold Fold foldl.1 — Tags
Superfamily Superfamily superfamilyl.1.1 — Tags
Family Family familyl.1.1.1 — Tags

CATH v4.4 (2 domains)

Domain ID domain_id1z1dA00
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_id1z1dB00
Class class3 — Alpha Beta
Architecture architecture40 — 3-Layer(aba) Sandwich
Topology topology1310 — Replication Protein E1; Chain: A,
Homologous superfamily homologous superfamily20 —
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7. Citations (3)