8GCM

Cryo-EM Structure of the Prostaglandin E Receptor EP4 Coupled to G Protein

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Guanine nucleotide-binding protein G(i) subunit alpha-1	polymer	354	40445.1	1	UniProt (P63096) Pfam (PF00503)	Homo sapiens (human)	Adenylate cyclase-inhibiting G alpha protein
2	B (B)	Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1	polymer	358	39418.1	1	UniProt (P62873) Pfam (PF25391)	Homo sapiens (human)	Transducin beta chain 1
3	C (C)	Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2	polymer	71	7861.1	1	UniProt (P59768) Pfam (PF00631)	Homo sapiens (human)	G gamma-I
4	D (E)	scFv16	polymer	250	26610.6	1		Homo sapiens (human)
5	E (R)	Prostaglandin E2 receptor EP4 subtype	polymer	488	53173.3	1	UniProt (P35408) Pfam (PF00001)	Homo sapiens (human)	PGE receptor EP4 subtype,PGE2 receptor EP4 subtype,Prostanoid EP4 receptor
6	F (R)	(5S)-5-[(3R)-4,4-difluoro-3-hydroxy-4-phenylbutyl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-one	non-polymer		421.5	1	Chemie (YX9)

Sequence modifications

A: 1 - 354 (UniProt: P63096)

PDB	External Database	Details
Ala 203	Gly 203	conflict
Ser 326	Ala 326	conflict

B: 2 - 340 (UniProt: P62873)

PDB	External Database	Details
Met -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
Leu -10	-	expression tag
Glu -9	-	expression tag
Val -8	-	expression tag
Leu -7	-	expression tag
Phe -6	-	expression tag
Gln -5	-	expression tag
Gly -4	-	expression tag
Pro -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
Ser 0	-	expression tag
Gly 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	5
	Total formula weight	167508.2
Non-Polymers*	Number of molecules	1
	Total formula weight	421.5
All*	Total formula weight	167929.7

*Water molecules are not included.