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6KAI

Crosslinked alpha(Ni)-beta(Fe) human hemoglobin A in the T quaternary structure at 95 K: Light

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, C, E, G
(A, C, E, G)
Hemoglobin subunit alphapolymer14115150.44UniProt (P69905)
Pfam (PF00042)
Homo sapiens (Human)Alpha-globin,Hemoglobin alpha chain
2B, D, F, H
(B, D, F, H)
Hemoglobin subunit betapolymer14615890.24UniProt (P68871)
Pfam (PF00042)
Homo sapiens (Human)Beta-globin,Hemoglobin beta chain
3BA, I, O, U
(G, A, C, E)
PROTOPORPHYRIN IX CONTAINING NI(II)non-polymer619.34Chemie (HNI)
4CA, DA, FA, GA, J...
(G, H, A, B, C...)
CARBON MONOXIDEnon-polymer28.015Chemie (CMO)
PubChem (281)
5EA, K, R, X
(H, B, D, F)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.54Chemie (HEM)
6AA, N
(F, B)
BUT-2-ENEDIALnon-polymer84.12Chemie (2FU)
PubChem (5287477)
PubChem (5323604)
PubChem (75389)
7HA, IA, JA, KA, LA...
(A, B, C, D, E...)
waterwater18.01315Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains8
Total formula weight124162.2
Non-Polymers*Number of molecules25
Total formula weight5531.6
All*Total formula weight129693.8
*Water molecules are not included.

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PDB entries from 2026-04-01

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