2DHB

THREE DIMENSIONAL FOURIER SYNTHESIS OF HORSE DEOXYHAEMOGLOBIN AT 2.8 ANGSTROMS RESOLUTION

Replaces:  1DHB

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (A)	HEMOGLOBIN (DEOXY) (ALPHA CHAIN)	polymer	141	15138.3	1	UniProt (P01958) Pfam (PF00042)	Equus caballus (horse)
2	B (B)	HEMOGLOBIN (DEOXY) (BETA CHAIN)	polymer	146	16004.2	1	UniProt (P02062) Pfam (PF00042)	Equus caballus (horse)
3	C, D (A, B)	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	2	Chemie (HEM)
4	E (A)	water	water		18.0	2	Chemie (HOH)

Sequence modifications

A: 1 - 141 (UniProt: P01958)

PDB	External Database	Details
Ala 63	Gly 63	conflict
Gly 65	Ala 65	conflict
Asp 82	Asn 82	conflict
Asn 85	Asp 85	conflict

B: 1 - 146 (UniProt: P02062)

PDB	External Database	Details
Ala 111	Val 111	conflict
Leu 112	Val 112	conflict
Val 114	Leu 114	conflict

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	31142.5
Non-Polymers*	Number of molecules	2
	Total formula weight	1233.0
All*	Total formula weight	32375.5

*Water molecules are not included.