4ZGD

Mutant R157A of Fe-Type Nitrile Hydratase from Comamonas testosteroni Ni1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C, E, G, I...	Nitrile hydratase alpha subunit	polymer	206	22836.1	8	UniProt (J9PBS0) Pfam (PF02979) In PDB	Comamonas testosteroni
2	B, D, F, H, J...	Nitrile hydratase beta subunit	polymer	206	22580.6	8	UniProt (J9PBS1) Pfam (PF21006) Pfam (PF02211) In PDB	Comamonas testosteroni
3	A, C, E, G, I...	FE (III) ION	non-polymer		55.8	8	Chemie (FE)
4		water	water		18.0	2995	Chemie (HOH)

Sequence modifications

A, C, E, G, I, K, M, O: 2 - 207 (UniProt: J9PBS0)

PDB	External Database	Details
Ala 157	Arg 159	engineered mutation

B, D, F, H, J, L, N, P: 1 - 206 (UniProt: J9PBS1)

PDB	External Database	Details
Pro 112	Ala 112	conflict

Contents of the asymmetric unit

Polymers	Number of chains	16
	Total formula weight	363333.1
Non-Polymers*	Number of molecules	8
	Total formula weight	446.8
All*	Total formula weight	363779.9

*Water molecules are not included.