3PQR

Crystal structure of Metarhodopsin II in complex with a C-terminal peptide derived from the Galpha subunit of transducin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Rhodopsin	polymer	348	39031.5	1	UniProt (P02699) Pfam (PF10413) Pfam (PF00001)	Bos taurus (bovine)	Active Metarhodopsin II with all-trans retinal
2	B (B)	Guanine nucleotide-binding protein G(t) subunit alpha-1	polymer	11	1261.5	1	UniProt (P04695)	Bos taurus	Galpha subunit of transducin, Transducin alpha-1 chain
3	C (C)	alpha-D-mannopyranose-(1-3)-beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	branched		748.7	1	In PDB GlyTouCan (G81315DD)
4	D (D)	alpha-D-glucopyranose-(1-1)-alpha-D-glucopyranose	branched		342.3	1	In PDB BIRD (PRD_900006) GlyTouCan (G92130SN)		trehalose
5	E (A)	RETINAL	non-polymer		284.4	1	Chemie (RET)
6	F (A)	2-acetamido-2-deoxy-beta-D-glucopyranose	non-polymer		221.2	1	Chemie (NAG)
7	G, H (A)	octyl beta-D-glucopyranoside	non-polymer		292.4	2	Chemie (BOG)
8	I (A)	PALMITIC ACID	non-polymer		256.4	1	Chemie (PLM)
9	J (A)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
10	K, L (A)	ACETATE ION	non-polymer		59.0	2	Chemie (ACT)
11	M, N (A, B)	water	water		18.0	23	Chemie (HOH)

Sequence modifications

B: 340 - 350 (UniProt: P04695)

PDB	External Database	Details
Leu 341	Lys 341	engineered mutation
Val 347	Cys 347	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	40292.9
Branched	Number of molecules	2
	Total formula weight	1091.0
Non-Polymers*	Number of molecules	8
	Total formula weight	1561.0
All*	Total formula weight	42944.9

*Water molecules are not included.