A1IJH

Tungstopterin cofactor

Created:	2024-07-31
Last modified:	2026-05-19

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1 entries where A1IJH is found as a standalone ligand

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Chemical Details
Formal Charge	0
Atom Count	72
Chiral Atom Count	6
Bond Count	80
Aromatic Bond Count	0

2D diagram of A1IJH

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Chemical Component Summary
Name	Tungstopterin cofactor
Systematic Name (OpenEye OEToolkits)	(5~{R},14~{R},16~{R},26~{R},28~{R},37~{R})-10,32-bis(azanyl)-19,23-bis(oxidanyl)-19,23-bis(oxidanylidene)-15,18,20,22,24,27-hexaoxa-2,40,41,42-tetrathia-6,9,11,13,29,31,33,36-octaza-19$l^{5},23$l^{5}-diphospha-1$l^{4}-tungsta-21$l^{2}-magnesanonacyclo[36.2.1.1^{1,4}.0^{3,16}.0^{5,14}.0^{7,12}.0^{26,39}.0^{28,37}.0^{30,35}]dotetraconta-3,7(12),10,30(35),31,38-hexaene-8,34-dione
Formula	C₂₀ H₂₂ Mg N₁₀ O₁₂ P₂ S₄ W
Molecular Weight	992.801
Type	NON-POLYMER

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	14.52	O=P1(O)OCC2OC3NC=4N=C(N)NC(=O)C=4NC3C=3S[W]4(SC=5C(OC6NC=7N=C(N)NC(=O)C=7NC6C=5S4)COP(=O)(O)O[Mg]O1)SC=32
SMILES	CACTVS	3.385	NC1=NC2=C(N[CH]3[CH](N2)O[CH]4CO[P](O)(=O)O[Mg]O[P](O)(=O)OC[CH]5O[CH]6NC7=C(N[CH]6C8=C5S[W]9(SC4=C3S9)S8)C(=O)NC(=N7)N)C(=O)N1
SMILES	OpenEye OEToolkits	3.1.0.0	C1C2C3=C(C4C(O2)NC5=C(N4)C(=O)NC(=N5)N)S[W]6(S3)SC7=C(S6)C8C(NC9=C(N8)C(=O)NC(=N9)N)OC7COP(=O)(O[Mg]OP(=O)(O1)O)O
Canonical SMILES	CACTVS	3.385	NC1=NC2=C(N[C@@H]3[C@H](N2)O[C@@H]4CO[P](O)(=O)O[Mg]O[P](O)(=O)OC[C@H]5O[C@H]6NC7=C(N[C@H]6C8=C5S[W]9(SC4=C3S9)S8)C(=O)NC(=N7)N)C(=O)N1
Canonical SMILES	OpenEye OEToolkits	3.1.0.0	C1[C@@H]2C3=C([C@H]4[C@@H](O2)NC5=C(N4)C(=O)NC(=N5)N)S[W]6(S3)SC7=C(S6)[C@H]8[C@H](NC9=C(N8)C(=O)NC(=N9)N)O[C@@H]7COP(=O)(O[Mg]OP(=O)(O1)O)O
InChI	InChI	1.06	InChI=1S/2C10H14N5O6PS2.Mg.W/c211-10-14-7-4(8(16)15-10)12-3-6(24)5(23)2(21-9(3)13-7)1-20-22(17,18)19;;/h22-3,9,12,23-24H,1H2,(H2,17,18,19)(H4,11,13,14,15,16);;/q;;+2;+4/p-6/t2*2-,3+,9-;;/m11../s1
InChIKey	InChI	1.06	TXTOFHXWJBZWPO-BURDSJQCSA-H

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.