1XHX

Phi29 DNA Polymerase, orthorhombic crystal form

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C, D	DNA polymerase	polymer	575	66720.9	4	UniProt (P03680) Pfam (PF03175) In PDB	Bacillus phage phi29	Early protein GP2
2	C	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
3	D	SULFATE ION	non-polymer		96.1	2	Chemie (SO4)
4		water	water		18.0	1509	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 575 (UniProt: P03680)

PDB	External Database	Details
Ala 12	Asp 12	engineered mutation
Ala 66	Asp 66	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	266883.7
Non-Polymers*	Number of molecules	4
	Total formula weight	240.7
All*	Total formula weight	267124.4

*Water molecules are not included.