9SIG

XFEL structure of oxidised Ribonucleotide reductase R2a Y122F mutant from 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	43410.9	2	UniProt (P69924) Pfam (PF00268)	Escherichia coli	Protein B2,Protein R2,Ribonucleotide reductase 1
2	C, D, E, F (A, B)	FE (III) ION	non-polymer		55.8	4	Chemie (FE) PubChem (29936)
3	G, H (A, B)	water	water		18.0	249	Chemie (HOH)

Sequence modifications

A, B: 1 - 375 (UniProt: P69924)

PDB	External Database	Details
Phe 122	Tyr 123	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	86821.7
Non-Polymers*	Number of molecules	4
	Total formula weight	223.4
All*	Total formula weight	87045.1

*Water molecules are not included.