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1SR5

ANTITHROMBIN-ANHYDROTHROMBIN-HEPARIN TERNARY COMPLEX STRUCTURE

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Antithrombin-IIIpolymer43249101.01UniProt (P01008)
Pfam (PF00079)
Homo sapiens (human)ATIII, PRO0309
2B
(B)
Prothrombinpolymer364096.51UniProt (P00734)
Pfam (PF09396)
Homo sapiens (human)Coagulation factor II
3C
(C)
Prothrombinpolymer25929780.21UniProt (P00734)
Pfam (PF00089)
Homo sapiens (human)Coagulation factor II
4D
(D)
4-deoxy-2,3,6-tri-O-methyl-alpha-D-xylo-hexopyranose-(1-4)-2,3,6-tri-O-methyl-beta-D-glucopyranose-(1-4)-2,3-di-O-methyl-6-O-sulfo-alpha-D-glucopyranose-(1-4)-(2R,3R,4S,5S,6S)-6-(dihydroxymethyl)-3,4-dimethoxytetrahydro-2H-pyran-2,5-diol-(1-4)-2,3,6-tri-O-sulfo-alpha-D-glucopyranose-(1-4)-(2R,3R,4S,5S,6R)-6-(dihydroxymethyl)-3,4-dimethoxytetrahydro-2H-pyran-2,5-diol-(1-4)-1,5-anhydro-3-O-methyl-2,6-di-O-sulfo-D-glucitolbranched1815.71BIRD (PRD_900079)heparin heptasaccharide
5E, F, G
(A, C)
2-acetamido-2-deoxy-beta-D-glucopyranosenon-polymer221.23Chemie (NAG)
6H
(C)
2,3,4,6-tetra-O-sulfonato-alpha-D-glucopyranosenon-polymer500.41Chemie (GU4)
7I, J, K
(A, B, C)
waterwater18.075Chemie (HOH)
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains3
Total formula weight82977.8
BranchedNumber of molecules1
Total formula weight1815.7
Non-Polymers*Number of molecules4
Total formula weight1164.0
All*Total formula weight85957.5
*Water molecules are not included.

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PDB entries from 2025-10-22

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