PTT

Oxo-tungstopterin cofactor

Created:	1999-07-08
Last modified:	2026-05-19

Find Related PDB Entry
1 entries where PTT is found as a standalone ligand

Find related ligands: Help
Similar Ligands (Stereospecific) Similar Ligands (including Stereoisomers) Similar Ligands (Quick Screen) Similar Ligands (Substructure Stereospecific) Similar Ligands (Substructure including Stereoisomers)

Chemical Details
Formal Charge	0
Atom Count	75
Chiral Atom Count	6
Bond Count	82
Aromatic Bond Count	0

2D diagram of PTT

Toggle Hydrogen Toggle Labels

Chemical Component Summary
Name	Oxo-tungstopterin cofactor
Systematic Name (OpenEye OEToolkits)	[(1~{R},1'~{R},10~{R},10'~{R},16~{R},16'~{R})-5,5'-bis(azanyl)-13-oxidanyl-7,7'-bis(oxidanylidene)-16'-(phosphonooxymethyl)-13,13'-spirobi[17-oxa-12,14-dithia-2,4,6,9-tetraza-13$l^{5}-tungstatetracyclo[8.7.0.0^{3,8}.0^{11,15}]heptadeca-3(8),4,11(15)-triene]-16-yl]methyl dihydrogen phosphate
Formula	C₂₀ H₂₅ N₁₀ O₁₃ P₂ S₄ W
Molecular Weight	987.519
Type	NON-POLYMER

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	ACDLabs	14.52	O=P(O)(O)OCC1OC2NC=3N=C(N)NC(=O)C=3NC2C=2S[W]3(O)(SC=4C(OC5NC=6N=C(N)NC(=O)C=6NC5C=4S3)COP(=O)(O)O)SC=21
SMILES	CACTVS	3.385	NC1=NC2=C(N[CH]3[CH](N2)O[CH](CO[P](O)(O)=O)C4=C3S[W]5(O)(S4)SC6=C(S5)[CH]7NC8=C(N[CH]7O[CH]6CO[P](O)(O)=O)N=C(N)NC8=O)C(=O)N1
SMILES	OpenEye OEToolkits	3.1.0.0	C(C1C2=C(C3C(O1)NC4=C(N3)C(=O)NC(=N4)N)S[W]5(S2)(SC6=C(S5)C7C(NC8=C(N7)C(=O)NC(=N8)N)OC6COP(=O)(O)O)O)OP(=O)(O)O
Canonical SMILES	CACTVS	3.385	NC1=NC2=C(N[C@@H]3[C@H](N2)O[C@H](CO[P](O)(O)=O)C4=C3S[W]5(O)(S4)SC6=C(S5)[C@@H]7NC8=C(N[C@@H]7O[C@@H]6CO[P](O)(O)=O)N=C(N)NC8=O)C(=O)N1
Canonical SMILES	OpenEye OEToolkits	3.1.0.0	C([C@@H]1C2=C([C@H]3[C@@H](O1)NC4=C(N3)C(=O)NC(=N4)N)S[W]5(S2)(SC6=C(S5)[C@H]7[C@H](NC8=C(N7)C(=O)NC(=N8)N)O[C@@H]6COP(=O)(O)O)O)OP(=O)(O)O
InChI	InChI	1.06	InChI=1S/2C10H14N5O6PS2.H2O.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);1H2;/q;;;+5/p-5/t2*2-,3+,9-;;/m11../s1
InChIKey	InChI	1.06	KNMDJPAXAWRWIL-BURDSJQCSA-I

Drug Info: DrugBank

DrugBank data are sourced from datasets licensed under a Creative Common's Attribution-NonCommercial 4.0 International License

DrugBank ID	DB01794
Name	bis(molybdopterin)tungsten cofactor
Groups	experimental
Synonyms	Tungstopterin W-molybdopterin cofactor bis(molybdopterin)tungsten cofactor

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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.