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1LLA

CRYSTAL STRUCTURE OF DEOXYGENATED LIMULUS POLYPHEMUS SUBUNIT II HEMOCYANIN AT 2.18 ANGSTROMS RESOLUTION: CLUES FOR A MECHANISM FOR ALLOSTERIC REGULATION

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
HEMOCYANIN (SUBUNIT TYPE II)polymer62872757.71UniProt (P04253)Limulus polyphemus (Atlantic horseshoe crab)
2B, C
(A)
COPPER (II) IONnon-polymer63.52Chemie (CU)
3D
(A)
SODIUM IONnon-polymer23.01Chemie (NA)
4E
(A)
CHLORIDE IONnon-polymer35.51Chemie (CL)
5F
(A)
waterwater18.0332Chemie (HOH)
Sequence modifications
A: 1 - 628 (UniProt: P04253)
PDBExternal DatabaseDetails
Ile 9Val 9conflict
Thr 408Phe 408conflict
Phe 409Thr 409conflict
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight72757.7
Non-Polymers*Number of molecules4
Total formula weight185.5
All*Total formula weight72943.2
*Water molecules are not included.

250059

PDB entries from 2026-03-04

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