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1YZI

A novel quaternary structure of human carbonmonoxy hemoglobin

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Hemoglobin alpha chainpolymer14115150.41UniProt (P69905)
Pfam (PF00042)
Homo sapiens (human)
2B
(B)
Hemoglobin beta chainpolymer14615890.21UniProt (P68871)
Pfam (PF00042)
Homo sapiens (human)
3C, H
(A, B)
CARBON MONOXIDEnon-polymer28.02Chemie (CMO)
4D, I
(A, B)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.52Chemie (HEM)
5E, F, G
(A)
TOLUENEnon-polymer92.13Chemie (MBN)
6J, K
(A, B)
waterwater18.0136Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight31040.6
Non-Polymers*Number of molecules7
Total formula weight1565.4
All*Total formula weight32606.0
*Water molecules are not included.

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PDB entries from 2025-07-16

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