5ZT9

SirB from Bacillus subtilis with Ni2+

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Sirohydrochlorin ferrochelatase	polymer	273	30237.5	2	UniProt (O34632) Pfam (PF01903) In PDB	Bacillus subtilis (strain 168)
2	A, B	NICKEL (II) ION	non-polymer		58.7	4	Chemie (NI)
3		water	water		18.0	62	Chemie (HOH)

Sequence modifications

A, B: 1 - 261 (UniProt: O34632)

PDB	External Database	Details
Met -11	-	expression tag
Gly -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
Ser -1	-	expression tag
Ser 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	60475.1
Non-Polymers*	Number of molecules	4
	Total formula weight	234.8
All*	Total formula weight	60709.8

*Water molecules are not included.