1JXB

I53A, a point mutant of the cysteine-free variant of E. coli Rnase HI

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Ribonuclease HI	polymer	155	17484.7	1	UniProt (P0A7Y4) Pfam (PF00075) In PDB	Escherichia coli	RNase HI, Ribonuclease H, Rnase H
2		water	water		18.0	161	Chemie (HOH)

Sequence modifications

A: 1 - 155 (UniProt: P0A7Y4)

PDB	External Database	Details
Ala 53	Ile 53	engineered mutation
Ala 13	Cys 13	variant
Ala 63	Cys 63	variant
Ala 133	Cys 133	variant

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	17484.7
All*	Total formula weight	17484.7

*Water molecules are not included.