6DGD

PriA helicase bound to dsDNA of a DNA replication fork

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Primosomal protein N'	polymer	751	83599.6	2	UniProt (A0A1W2ITH4) Pfam (PF17764) Pfam (PF21213) Pfam (PF00270) Pfam (PF18319) Pfam (PF00271) Pfam (PF18074) UniProt (by SIFTS) (A6TGC5)	Klebsiella pneumoniae	ATP-dependent helicase PriA
2	C (W)	DNA (5'-D(P*AP*GP*CP*AP*CP*GP*CP*CP*GP*AP*CP*T)-3')	polymer	12	3632.4	1		synthetic construct
3	D, F (X, Z)	DNA (5'-D(P*GP*TP*CP*GP*GP*CP*GP*TP*GP*CP*TP*C)-3')	polymer	12	3670.4	2		synthetic construct
4	E (Y)	DNA (5'-D(P*GP*AP*GP*CP*AP*CP*GP*CP*CP*GP*AP*CP*T)-3')	polymer	13	3961.6	1		synthetic construct
5	G, H, Q, R (A, B)	ZINC ION	non-polymer		65.4	4	Chemie (ZN)
6	I, J, K, L, M... (A, B)	SULFATE ION	non-polymer		96.1	13	Chemie (SO4)
7	X (A)	water	water		18.0	2	Chemie (HOH)

Sequence modifications

A, B: 1 - 731 (UniProt: A0A1W2ITH4)

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	6
	Total formula weight	182134.0
Non-Polymers*	Number of molecules	17
	Total formula weight	1510.5
All*	Total formula weight	183644.4

*Water molecules are not included.