9SH6 | pdb_00009sh6

Structure of a GPCR dimer bound to two G proteins

PDB DOI: https://doi.org/10.2210/pdb9SH6/pdb
EM Map EMD-54889: EMDB EMDataResource

Classification: MEMBRANE PROTEIN
Organism(s): Saccharomyces cerevisiae
Expression System: Trichoplusia ni, Saccharomyces cerevisiae, Escherichia coli
Mutation(s): No

Deposited: 2025-08-25 Released: 2026-09-02
Deposition Author(s): Velazhahan, V., Tate, C.
Funding Organization(s): Medical Research Council (MRC, United Kingdom)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.77 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

This is version 1.0 of the entry. See complete history.

Literature

Structure and mechanism of a GPCR dimer coupling to two G proteins

Velazhahan, V., Tate, C.

To be published.

Macromolecule Content

Total Structure Weight: 331.08 kDa
Atom Count: 14,886
Modeled Residue Count: 1,946
Deposited Residue Count: 2,896
Unique protein chains: 5

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Pheromone alpha factor receptor	A [auth B], B [auth A]	430	Saccharomyces cerevisiae	Mutation(s): 0 Gene Names: STE2, YFL026W
UniProt
Find proteins for D6VTK4 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore D6VTK4 Go to UniProtKB: D6VTK4
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	D6VTK4
Glycosylation
Glycosylation Sites: 1	Glycosylation Focus chain A [auth B] Focus chain B [auth A]	Go to GlyGen: D6VTK4-1
Sequence Annotations Expand
Reference Sequence

Find similar proteins by: Sequence | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Mating factor alpha	C [auth K], D [auth I]	13	Saccharomyces cerevisiae	Mutation(s): 0 Gene Names: MF(ALPHA)2, MF-ALPHA-2, MFAL2, YGL089C
UniProt
Find proteins for P32435 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P32435 Go to UniProtKB: P32435
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P32435
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein subunit gamma	E [auth G], J [auth H]	110	Saccharomyces cerevisiae	Mutation(s): 0 Gene Names: STE18, YJR086W, J1866
UniProt
Find proteins for P18852 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P18852 Go to UniProtKB: P18852
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P18852
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein subunit beta	F [auth C], H [auth F]	423	Saccharomyces cerevisiae	Mutation(s): 0 Gene Names: STE4, YOR212W, YOR50-2
UniProt
Find proteins for P18851 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P18851 Go to UniProtKB: P18851
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P18851
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Guanine nucleotide-binding protein alpha-1 subunit	G [auth E], I [auth D]	472	Saccharomyces cerevisiae	Mutation(s): 0 Gene Names: GPA1, CDC70, DAC1, SCG1, YHR005C
UniProt
Find proteins for P08539 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P08539 Go to UniProtKB: P08539
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P08539
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
Y01 Query on Y01 Download:Ideal Coordinates CCD File SDF format, chain M [auth B] SDF format, chain N [auth B] SDF format, chain O [auth B] SDF format, chain P [auth B] SDF format, chain R [auth A] SDF format, chain S [auth A] SDF format, chain U [auth A] SDF format, chain V [auth A] SDF format, chain T [auth A] SDF format, chain L [auth B] MOL2 format, chain M [auth B] MOL2 format, chain N [auth B] MOL2 format, chain O [auth B] MOL2 format, chain P [auth B] MOL2 format, chain R [auth A] MOL2 format, chain S [auth A] MOL2 format, chain U [auth A] MOL2 format, chain V [auth A] MOL2 format, chain T [auth A] MOL2 format, chain L [auth B] mmCIF format, chain M [auth B] mmCIF format, chain N [auth B] mmCIF format, chain O [auth B] mmCIF format, chain P [auth B] mmCIF format, chain R [auth A] mmCIF format, chain S [auth A] mmCIF format, chain U [auth A] mmCIF format, chain V [auth A] mmCIF format, chain T [auth A] mmCIF format, chain L [auth B]	L [auth B] M [auth B] N [auth B] O [auth B] P [auth B] L [auth B], M [auth B], N [auth B], O [auth B], P [auth B], R [auth A], S [auth A], T [auth A], U [auth A], V [auth A]	CHOLESTEROL HEMISUCCINATE C₃₁ H₅₀ O₄ WLNARFZDISHUGS-MIXBDBMTSA-N		Interactions Focus chain L [auth B] Focus chain M [auth B] Focus chain N [auth B] Focus chain O [auth B] Focus chain P [auth B] Focus chain R [auth A] Focus chain S [auth A] Focus chain T [auth A] Focus chain U [auth A] Focus chain V [auth A] Interactions & Density Focus chain L [auth B] Focus chain M [auth B] Focus chain N [auth B] Focus chain O [auth B] Focus chain P [auth B] Focus chain R [auth A] Focus chain S [auth A] Focus chain T [auth A] Focus chain U [auth A] Focus chain V [auth A]
NAG Query on NAG Download:Ideal Coordinates CCD File SDF format, chain K [auth B] SDF format, chain Q [auth A] MOL2 format, chain K [auth B] MOL2 format, chain Q [auth A] mmCIF format, chain K [auth B] mmCIF format, chain Q [auth A]	K [auth B], Q [auth A]	2-acetamido-2-deoxy-beta-D-glucopyranose C₈ H₁₅ N O₆ OVRNDRQMDRJTHS-FMDGEEDCSA-N		Interactions Focus chain K [auth B] Focus chain Q [auth A] Interactions & Density Focus chain K [auth B] Focus chain Q [auth A]