1SKR

T7 DNA Polymerase Complexed To DNA Primer/Template and ddATP

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	P	5'-D(*CP*GP*AP*AP*AP*AP*CP*GP*AP*C*GP*GP*CP*CP*AP*GP*TP*GP*CP*CP*AP*(2DA))-3'	polymer	22	6748.4	1
2	T	5'-D(*CP*CP*CP*TP*TP*TP*GP*GP*CP*AP*CP*TP*GP*GP*CP*CP*GP*TP*CP*GP*TP*TP*TP*TP*CP*G)-3'	polymer	26	7913.1	1
3	A	DNA polymerase	polymer	698	79089.8	1	UniProt (P00581) Pfam (PF00476) In PDB	Enterobacteria phage T7	T7 DNA polymerase
4	B	Thioredoxin 1	polymer	108	11687.4	1	UniProt (P0AA25) Pfam (PF00085) In PDB	Escherichia coli	TRX1, TRX
5	A	MAGNESIUM ION	non-polymer		24.3	3	Chemie (MG)
6	A	2',3'-DIDEOXYADENOSINE-5'-TRIPHOSPHATE	non-polymer		475.2	1	Chemie (DAD)
7		water	water		18.0	381	Chemie (HOH)

Sequence modifications

A: 1 - 704 (UniProt: P00581)

PDB	External Database	Details
-	Lys 118	deletion
-	Arg 119	deletion
-	Phe 120	deletion
-	Gly 121	deletion
-	Ser 122	deletion
-	His 123	deletion

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	105438.6
Non-Polymers*	Number of molecules	4
	Total formula weight	548.1
All*	Total formula weight	105986.7

*Water molecules are not included.