1XHM

The Crystal Structure of a Biologically Active Peptide (SIGK) Bound to a G Protein Beta:Gamma Heterodimer

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Guanine nucleotide-binding protein G(I)/G(S)/G(T) beta subunit 1	polymer	340	37416.9	1	UniProt (P62871) Pfam (PF00400) In PDB	Bos taurus (cattle)	Transducin beta chain 1, G-Protein Beta1
2	B	Guanine nucleotide-binding protein G(I)/G(S)/G(O) gamma-2 subunit	polymer	77	8690.0	1	UniProt (P63212) Pfam (PF00631) In PDB	Bos taurus (cattle)	G gamma-I, G-Protein Gamma2
3	C	SIGK Peptide	polymer	15	1688.9	1
4		water	water		18.0	37	Chemie (HOH)

Sequence modifications

B: 1 - 71 (UniProt: P63212)

PDB	External Database	Details
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	47795.9
All*	Total formula weight	47795.9

*Water molecules are not included.