7wig

Cryo-EM structure of the L-054,264-bound human SSTR2-Gi1 complex

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Somatostatin receptor type 2

Homo sapiens

UniProt P30874

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P54311) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P63212) single Fab chain (svFv16) × 1 ;~{N}-[(2~{R})-1-[[(1~{R},3~{S})-3-(aminomethyl)cyclohexyl]methylamino]-3-(1~{H}-indol-3-yl)-1-oxidanylidene-propan-2-yl]spiro[indene-1,4'-piperidine]-1'-carboxamide ; × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name SSR2_HUMAN
Isoform —
PDB entities 1
Chains and sequence ranges Author chain R; PDBConstruct 1–369; UniProt 1–369

Guanine nucleotide-binding protein G(i) subunit alpha-1

Homo sapiens

UniProt P63096

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 Somatostatin receptor type 2 × 1 (P30874) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P54311) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P63212) single Fab chain (svFv16) × 1 ;~{N}-[(2~{R})-1-[[(1~{R},3~{S})-3-(aminomethyl)cyclohexyl]methylamino]-3-(1~{H}-indol-3-yl)-1-oxidanylidene-propan-2-yl]spiro[indene-1,4'-piperidine]-1'-carboxamide ; × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name GNAI1_HUMAN
Isoform —
PDB entities 2
Chains and sequence ranges Author chain A; PDBConstruct 1–354; UniProt 1–354

Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

Rattus norvegicus

UniProt P54311

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 Somatostatin receptor type 2 × 1 (P30874) Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 × 1 (P63212) single Fab chain (svFv16) × 1 ;~{N}-[(2~{R})-1-[[(1~{R},3~{S})-3-(aminomethyl)cyclohexyl]methylamino]-3-(1~{H}-indol-3-yl)-1-oxidanylidene-propan-2-yl]spiro[indene-1,4'-piperidine]-1'-carboxamide ; × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name GBB1_RAT
Isoform —
PDB entities 3
Chains and sequence ranges Author chain B; PDBConstruct 7–345; UniProt 2–340

Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

Bos taurus

UniProt P63212

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 5 Somatostatin receptor type 2 × 1 (P30874) Guanine nucleotide-binding protein G(i) subunit alpha-1 × 1 (P63096) Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 × 1 (P54311) single Fab chain (svFv16) × 1 ;~{N}-[(2~{R})-1-[[(1~{R},3~{S})-3-(aminomethyl)cyclohexyl]methylamino]-3-(1~{H}-indol-3-yl)-1-oxidanylidene-propan-2-yl]spiro[indene-1,4'-piperidine]-1'-carboxamide ; × 1 Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence
UniProt name GBG2_BOVIN
Isoform —
PDB entities 4
Chains and sequence ranges Author chain G; PDBConstruct 1–70; UniProt 2–71

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_id7wig
Deposition date deposition_date2022-01-03
Structure title titleCryo-EM structure of the L-054,264-bound human SSTR2-Gi1 complex
Keywords keywordssomatostatin receptor, somatostatin-14, L-054, 264, SSTR2, Class A GPCR, BIOSYNTHETIC PROTEIN, STRUCTURAL PROTEIN; STRUCTURAL PROTEIN
Experimental Method methodELECTRON MICROSCOPY
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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.

7wig__assembly_1__model_1

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

Download this curve (.dat)

7wig__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.

7wig__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)37.75 Å
Rg (electron density)37.65 Å
Total Rg37.96 Å
Atom count8931
Residues1139
Excluded volume159880 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 7wig__assembly_1__model_1 pentameric (5) 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 (6)

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6. Fold Classification (SCOP + CATH) 3 domains

CATH v4.4 (3 domains)

Domain ID domain_id7wigB01
Class class2 — Mainly Beta
Architecture architecture130 — 7 Propeller
Topology topology10 — Methylamine Dehydrogenase; Chain H
Homologous superfamily homologous superfamily10 — YVTN repeat-like/Quinoprotein amine dehydrogenase
Domain ID domain_id7wigS01
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
Domain ID domain_id7wigS02
Class class2 — Mainly Beta
Architecture architecture60 — Sandwich
Topology topology40 — Immunoglobulin-like
Homologous superfamily homologous superfamily10 — Immunoglobulins
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7. Citations (1)