2XOF

Ribonucleotide reductase Y122NO2Y modified R2 subunit of E. coli

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	RIBONUCLEOSIDE-DIPHOSPHATE REDUCTASE 1 SUBUNIT BETA	polymer	375	43471.9	2	UniProt (P69924) Pfam (PF00268)	ESCHERICHIA COLI	RIBONUCLEOTIDE REDUCTASE 1, PROTEIN B2, PROTEIN R2
2	C, D (A, B)	MU-OXO-DIIRON	non-polymer		127.7	2	Chemie (FEO)
3	E, F (A, B)	water	water		18.0	371	Chemie (HOH)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	86943.7
Non-Polymers*	Number of molecules	2
	Total formula weight	255.4
All*	Total formula weight	87199.1

*Water molecules are not included.