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4HRR

Scapharca tetrameric hemoglobin, CO-state

Replaces:  1SCT
Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A, C, E, G
(A, C, E, G)
Globin-2 A chainpolymer15016153.64UniProt (P14821)
Pfam (PF00042)
Scapharca inaequivalvis (Inequivalve ark)Globin II A chain, HBII-A
2B, D, F, H
(B, D, F, H)
Hemoglobin B chainpolymer15216476.94UniProt (O02480)
Pfam (PF00042)
UniProt (by SIFTS) (P14822)
Scapharca inaequivalvis (Inequivalve ark)
3I, K, M, O, Q...
(A, B, C, D, E...)
PROTOPORPHYRIN IX CONTAINING FEnon-polymer616.58Chemie (HEM)
4J, L, N, P, R...
(A, B, C, D, E...)
CARBON MONOXIDEnon-polymer28.08Chemie (CMO)
5AA, BA, CA, DA, EA...
(C, D, E, F, G...)
waterwater18.01984Chemie (HOH)
Sequence modifications
A, C, E, G: 4 - 149 (UniProt: P14821)
PDBExternal DatabaseDetails
Ace 0-acetylation
Val 1-SEE REMARK 999
Asp 2-SEE REMARK 999
Ala 3-SEE REMARK 999
B, D, F, H: 1 - 151 (UniProt: O02480)
PDBExternal DatabaseDetails
Ace 0-acetylation
Arg 2Lys 5SEE REMARK 999
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains8
Total formula weight130522.0
Non-Polymers*Number of molecules16
Total formula weight5156.0
All*Total formula weight135678.0
*Water molecules are not included.

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PDB entries from 2026-01-14

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