7DGN

The Co-bound dimeric structure of K79H/G80A/H81A myoglobin

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Myoglobin	polymer	153	16939.4	2	UniProt (P68082) Pfam (PF00042) In PDB	Equus caballus (Horse)
2	A, B	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
3	A, B	OXYGEN ATOM	non-polymer		16.0	2	Chemie (O)
4	A, B	COBALT (II) ION	non-polymer		58.9	2	Chemie (CO)
5		water	water		18.0	68	Chemie (HOH)

Sequence modifications

A, B: 1 - 153 (UniProt: P68082)

PDB	External Database	Details
His 79	Lys 80	engineered mutation
Ala 80	Gly 81	engineered mutation
Ala 81	His 82	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	33878.9
Non-Polymers*	Number of molecules	6
	Total formula weight	1382.8
All*	Total formula weight	35261.7

*Water molecules are not included.