6FGX

Crystal structure of the small alarmone synthethase 2 from Staphylococcus aureus bound to AMPCPP

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	GTP pyrophosphokinase	polymer	237	28094.1	2	UniProt (W8U368) Pfam (PF04607) In PDB	Staphylococcus aureus	GTP pyrophosphokinase ywaC,RelA/SpoT domain protein
2	A, B	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3	A, B	DIPHOSPHOMETHYLPHOSPHONIC ACID ADENOSYL ESTER	non-polymer		505.2	2	Chemie (APC)
4		water	water		18.0	30	Chemie (HOH)

Sequence modifications

A, B: 2 - 230 (UniProt: W8U368)

PDB	External Database	Details
Met -6	-	initiating methionine
Gly -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag
His 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56188.3
Non-Polymers*	Number of molecules	4
	Total formula weight	1059.0
All*	Total formula weight	57247.3

*Water molecules are not included.