6HIT

The crystal structure of haemoglobin from Atlantic cod

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 (A, C, E, G)	Hemoglobin alpha 2 chain	polymer	143	15713.3	4	UniProt (B3F9D9) Pfam (PF00042) UniProt (by SIFTS) (O42425)	Gadus morhua (Atlantic cod)	Hemoglobin alpha chain
2	B, D, F, H (B, D, F, H)	Hemoglobin beta 4 chain	polymer	145	16343.7	4	UniProt (B3F9D7) Pfam (PF00042)	Gadus morhua (Atlantic cod)	Hemoglobin beta chain
3	I, J, K, L, M... (A, B, C, D, E...)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	8	Chemie (HEM)

Sequence modifications

A, C, E, G: 2 - 143 (UniProt: B3F9D9)

PDB	External Database	Details
Ace 1	-	acetylation

B, D, F, H: 2 - 146 (UniProt: B3F9D7)

PDB	External Database	Details
Ala 45	Gly 45	conflict
Ala 57	Cys 57	conflict
Ser 121	Pro 121	conflict

Contents of the asymmetric unit

Polymers	Number of chains	8
	Total formula weight	128228.2
Non-Polymers*	Number of molecules	8
	Total formula weight	4931.9
All*	Total formula weight	133160.1

*Water molecules are not included.