7LD5

polynucleotide phosphorylase

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	Polyribonucleotide nucleotidyltransferase	polymer	784	83647.7	3	UniProt (A0QVQ5) Pfam (PF01138) Pfam (PF03726) Pfam (PF00013) Pfam (PF00575) In PDB	Mycolicibacterium smegmatis	Polynucleotide phosphorylase,PNPase
2	D, E, F	poly-A RNA fragment	polymer	9	2917.9	3		synthetic construct
3	A, B, C	MAGNESIUM ION	non-polymer		24.3	6	Chemie (MG)

Sequence modifications

A, B, C: 1 - 763 (UniProt: A0QVQ5)

PDB	External Database	Details
Met -20	-	initiating methionine
Gly -19	-	expression tag
His -18	-	expression tag
His -17	-	expression tag
His -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
His -9	-	expression tag
Ser -8	-	expression tag
Ser -7	-	expression tag
Gly -6	-	expression tag
His -5	-	expression tag
Ile -4	-	expression tag
Glu -3	-	expression tag
Gly -2	-	expression tag
Arg -1	-	expression tag
His 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	259696.8
Non-Polymers*	Number of molecules	6
	Total formula weight	145.8
All*	Total formula weight	259842.6

*Water molecules are not included.