3DD6

Crystal structure of Rph, an exoribonuclease from Bacillus anthracis at 1.7 A resolution

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Ribonuclease PH	polymer	255	28207.1	1	UniProt (Q81LA9) Pfam (PF01138) Pfam (PF03725) In PDB	Bacillus anthracis	RNase PH, tRNA nucleotidyltransferase
2	A	SULFATE ION	non-polymer		96.1	5	Chemie (SO4)
3		water	water		18.0	144	Chemie (HOH)

Sequence modifications

A: 1 - 245 (UniProt: Q81LA9)

PDB	External Database	Details
Met -9	-	expression tag
Gly -8	-	expression tag
Ser -7	-	expression tag
Ser -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	28207.1
Non-Polymers*	Number of molecules	5
	Total formula weight	480.3
All*	Total formula weight	28687.4

*Water molecules are not included.