7BWH

Soluble cytochrome b5 from Ramazzottius varieornatus

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Cytochrome b5 heme-binding domain-containing protein	polymer	112	12783.2	1	UniProt (A0A1D1VNB4) Pfam (PF00173) In PDB	Ramazzottius varieornatus (Water bear)
2	A	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	1	Chemie (HEM)
3	A	CHLORIDE ION	non-polymer		35.5	1	Chemie (CL)
4		water	water		18.0	95	Chemie (HOH)

Sequence modifications

A: 10 - 102 (UniProt: A0A1D1VNB4)

PDB	External Database	Details
His -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
Ser -3	-	expression tag
Ser -2	-	expression tag
Glu -1	-	expression tag
Asn 0	-	expression tag
Leu 1	-	expression tag
Tyr 2	-	expression tag
Phe 3	-	expression tag
Gln 4	-	expression tag
Ser 5	-	expression tag
Leu 6	-	expression tag
Arg 7	-	expression tag
Lys 8	-	expression tag
Asp 9	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	1
	Total formula weight	12783.2
Non-Polymers*	Number of molecules	2
	Total formula weight	651.9
All*	Total formula weight	13435.2

*Water molecules are not included.