6GP3

Ribonucleotide Reductase class Ie R2 from Mesoplasma florum, inactive 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	Ribonucleoside-diphosphate reductase beta chain	polymer	345	39828.6	2	UniProt (Q6F0T5) Pfam (PF00268) In PDB	Mesoplasma florum (strain ATCC 33453 / NBRC 100688 / NCTC 11704 / L1) (Acholeplasma florum)
2	A, B	CALCIUM ION	non-polymer		40.1	2	Chemie (CA)
3		water	water		18.0	714	Chemie (HOH)

Sequence modifications

A, B: 1 - 340 (UniProt: Q6F0T5)

PDB	External Database	Details
Gly -5	-	expression tag
His -4	-	expression tag
Met -3	-	expression tag
Ala -2	-	expression tag
Ser -1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	79657.2
Non-Polymers*	Number of molecules	2
	Total formula weight	80.2
All*	Total formula weight	79737.4

*Water molecules are not included.