1Y46

T-To-T(High) quaternary transitions in human hemoglobin: betaW37Y deoxy low-salt (10 test sets)

Replaces:  1A0V

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Hemoglobin alpha chain	polymer	141	15150.4	2	UniProt (P69905) Pfam (PF00042) In PDB	Homo sapiens (human)
2	B, D	Hemoglobin beta chain	polymer	146	15899.2	2	UniProt (P68871) Pfam (PF00042) In PDB	Homo sapiens (human)
3	A, B, C, D	PROTOPORPHYRIN IX CONTAINING FE	non-polymer		616.5	4	Chemie (HEM)
4		water	water		18.0	175	Chemie (HOH)

Sequence modifications

B, D: 1 - 146 (UniProt: P68871)

PDB	External Database	Details
Met 1	Val 1	engineered mutation
Tyr 37	Trp 37	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	62099.2
Non-Polymers*	Number of molecules	4
	Total formula weight	2465.9
All*	Total formula weight	64565.1

*Water molecules are not included.