1Y3A

Structure of G-Alpha-I1 bound to a GDP-selective peptide provides insight into guanine nucleotide exchange

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	Guanine nucleotide-binding protein G(i), alpha-1 subunit	polymer	329	37603.8	4	UniProt (P63096) Pfam (PF00503) In PDB	Homo sapiens (human)	Adenylate cyclase-inhibiting G alpha protein, G-alpha-i1
2	E, F, G, H	KB752 peptide	polymer	16	2037.3	4		Homo sapiens (human)
3	A, B, C, D	GUANOSINE-5'-DIPHOSPHATE	non-polymer		443.2	4	Chemie (GDP)
4		water	water		18.0	136	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	158564.3
Non-Polymers*	Number of molecules	4
	Total formula weight	1772.8
All*	Total formula weight	160337.1

*Water molecules are not included.