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4DII

X-ray structure of the complex between human alpha thrombin and thrombin binding aptamer in the presence of potassium ions

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(L)
Prothrombinpolymer364096.51UniProt (P00734)
Pfam (PF09396)
Homo sapiens (human)Coagulation factor II, Thrombin light chain
2B
(H)
Prothrombinpolymer25929780.21UniProt (P00734)
Pfam (PF00089)
Homo sapiens (human)Coagulation factor II, Thrombin heavy chain
3C
(D)
Thrombin binding aptamerpolymer154743.11Synthetic DNA
4D, H
(L, H)
ZINC IONnon-polymer65.42Chemie (ZN)
5E
(H)
D-phenylalanyl-N-[(2S,3S)-6-{[amino(iminio)methyl]amino}-1-chloro-2-hydroxyhexan-3-yl]-L-prolinamidenon-polymer454.01BIRD (PRD_000020)
Chemie (0G6)
6F
(H)
2-acetamido-2-deoxy-beta-D-glucopyranosenon-polymer221.21Chemie (NAG)
7G
(H)
SODIUM IONnon-polymer23.01Chemie (NA)
8I, J
(H)
CHLORIDE IONnon-polymer35.52Chemie (CL)
9K
(D)
POTASSIUM IONnon-polymer39.11Chemie (K)
10L, M, N
(L, H, D)
waterwater18.0183Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight38619.8
Non-Polymers*Number of molecules8
Total formula weight939.0
All*Total formula weight39558.8
*Water molecules are not included.

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PDB entries from 2025-06-25

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