6JOP

Crystal structures of phage NrS-1 N300-dNTPs-Mg2+ complex provide molecular mechanisms for substrate specificity

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	Primase	polymer	320	36314.9	1	UniProt (M5AAG8) Pfam (PF22763)	Nitratiruptor phage NrS-1
2	B (A)	THYMIDINE-5'-TRIPHOSPHATE	non-polymer		482.2	1	Chemie (TTP)
3	C, D (A)	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4	E (A)	water	water		18.0	75	Chemie (HOH)

Sequence modifications

A: 1 - 300 (UniProt: M5AAG8)

PDB	External Database	Details
Met -19	-	expression tag
Gly -18	-	expression tag
Ser -17	-	expression tag
Ser -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	36314.9
Non-Polymers*	Number of molecules	3
	Total formula weight	530.8
All*	Total formula weight	36845.6

*Water molecules are not included.