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9FNM

Structure of human haptoglobin

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Isoform 2 of Haptoglobin alpha chainpolymer839204.21UniProt (P00738)Homo sapiens (human)Zonulin, Isoform 2 of Haptoglobin alpha chain
2B
(B)
Haptoglobin beta chainpolymer24527298.01UniProt (P00738)
Pfam (PF00089)
Homo sapiens (human)
3C
(B)
2-acetamido-2-deoxy-beta-D-glucopyranosenon-polymer221.21Chemie (NAG)
4D, E
(A, B)
waterwater18.093Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains2
Total formula weight36502.3
Non-Polymers*Number of molecules1
Total formula weight221.2
All*Total formula weight36723.5
*Water molecules are not included.

247536

PDB entries from 2026-01-14

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