7NSD

Triphosphate tunnel metalloenzyme from Sulfolobus acidocaldarius in complex with ATP and calcium

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Triphosphate tunnel metalloenzyme Saci_0718	polymer	198	23699.0	1	UniProt (Q4JAT2) Pfam (PF01928) In PDB	Sulfolobus acidocaldarius (strain ATCC 33909 / DSM 639 / JCM 8929 / NBRC 15157 / NCIMB 11770)	Conserved Archaeal protein,Adenylate cyclase
2	A	ACETATE ION	non-polymer		59.0	1	Chemie (ACT)
3	A	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
4	A	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	1	Chemie (ATP)
5		water	water		18.0	77	Chemie (HOH)

Sequence modifications

A: 2 - 185 (UniProt: Q4JAT2)

PDB	External Database	Details
Met 0	-	initiating methionine
Gly 1	-	cloning artifact
Gly 186	-	expression tag
Ser 187	-	expression tag
Ile 188	-	expression tag
Glu 189	-	expression tag
Gly 190	-	expression tag
Arg 191	-	expression tag
His 192	-	expression tag
His 193	-	expression tag
His 194	-	expression tag
His 195	-	expression tag
His 196	-	expression tag
His 197	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	23699.0
Non-Polymers*	Number of molecules	4
	Total formula weight	646.4
All*	Total formula weight	24345.4

*Water molecules are not included.