Loader

Pathways

PathWhiz ID Pathway Meta Data

PW000429

Pw000429 View Pathway
drug action

Thioguanine Action Pathway (old)

Homo sapiens
Thioguanine is a purine antimetabolite prodrug closely related to mercaptopurine and similarly inhibits purine metabolism. The thioguanine pathway is shown as a part of the mercaptopurine pathway. Thioguanine exerts cytotoxic effects via incorporation of thiodeoxyguanosine triphosphate into DNA and thioguanosine triphosphate into RNA and inhibition of Ras-related C3 botulinum toxin substrate 1, which induces apoptosis of activated T cells. Once in a cell, thioguanine is converted to thioguanosine monophosphate by hypoxanthine-guanine phosphoribosyltransferase. Thioguanosine monophosphate is then phosphorylated to thioguanosine diphosphate, which is converted via a thiodeoxyguanosine diphosphate intermediate to thiodeoxyguanosine triphosphate. Thiodeoxyguanosine triphosphate is incorporated into DNA causing cytotoxicity. Thioguanosine diphosphate is also converted to thioguanosine triphosphate which is incorporated into RNA. The thioguanosine triphosphate metabolite also inhibits Ras-related C3 botulinum toxin substrate 1, a plasma membrane-associated small GTPase that regulates cellular processes, inducing apoptosis in activated T cells.

PW146984

Pw146984 View Pathway
metabolic

Thioguanine Drug Metabolism Pathway

Homo sapiens

PW000623

Pw000623 View Pathway
drug metabolism

Thioguanine Metabolism Pathway (old)

Homo sapiens
Thioguanine is a purine antimetabolite prodrug closely related to mercaptopurine and similarly inhibits purine metabolism. The thioguanine pathway is shown as a part of the mercaptopurine pathway. Thioguanine exerts cytotoxic effects via incorporation of thiodeoxyguanosine triphosphate into DNA and thioguanosine triphosphate into RNA and inhibition of Ras-related C3 botulinum toxin substrate 1, which induces apoptosis of activated T cells. Once in a cell, thioguanine is converted to thioguanosine monophosphate by hypoxanthine-guanine phosphoribosyltransferase. Thioguanosine monophosphate is then phosphorylated to thioguanosine diphosphate, which is converted via a thiodeoxyguanosine diphosphate intermediate to thiodeoxyguanosine triphosphate. Thiodeoxyguanosine triphosphate is incorporated into DNA causing cytotoxicity. Thioguanosine diphosphate is also converted to thioguanosine triphosphate which is incorporated into RNA. The thioguanosine triphosphate metabolite also inhibits Ras-related C3 botulinum toxin substrate 1, a plasma membrane-associated small GTPase that regulates cellular processes, inducing apoptosis in activated T cells.

PW146796

Pw146796 View Pathway
drug action

Thiohexam Drug Metabolism Action Pathway

Homo sapiens

PW176357

Pw176357 View Pathway
metabolic

Thiohexam Predicted Metabolism Pathway

Homo sapiens
Metabolites of sildenafil are predicted with biotransformer.

PW128417

Pw128417 View Pathway
drug action

Thiopental Action Pathway

Homo sapiens
Thiopental is a barbiturate utilized for inducing general anesthesia, managing convulsions, and reducing intracranial pressure. Administered intravenously, this barbiturate is employed to induce general anesthesia promptly, achieve temporary complete anesthesia, induce hypnosis, and control convulsive conditions. Notably, it has been employed in neurosurgical contexts to alleviate elevated intracranial pressure. Although it lacks excitatory effects, its analgesic and muscle relaxant properties are limited. It has been shown that low doses can counteract analgesia and lower the pain threshold. Thiopental finds application as the sole anesthetic for brief procedures, as an induction agent preceding other anesthetics, to supplement regional anesthesia, to provide hypnosis alongside other agents for analgesia or muscle relaxation, for managing convulsions during inhalation or local anesthesia, in neurosurgical cases with heightened intracranial pressure, and for narcoanalysis and narcosynthesis in psychiatric disorders. Functioning as an ultrashort-acting central nervous system depressant, thiopental induces rapid hypnosis and anesthesia, yet it lacks analgesic properties. Its binding to a specific site linked to a Cl- ionopore at the GABAA receptor extends the opening duration of the ionopore, thereby prolonging GABA's inhibitory effect in the thalamus. This results in prolonged post-synaptic inhibition. The drug's rapid binding to fatty tissues leads to anesthetic accumulation, producing prolonged effects due to gradual drug release.

PW144715

Pw144715 View Pathway
drug action

Thiopental Drug Metabolism Action Pathway

Homo sapiens

PW146344

Pw146344 View Pathway
drug action

Thioredoxin Drug Metabolism Action Pathway

Homo sapiens

PW123556

Pw123556 View Pathway
metabolic

Thioredoxin Pathway

Pseudomonas aeruginosa
Thioredoxins are a class of proteins that are used in redox reactions, and are found in all living organisms. In humans, they respond to reactive oxygen species, while in plants they are important for growth, photosynthesis, flowering and seed formation. In E. coli, thioredoxins catalyze a number of redox reactions, and are important in stress response, as well as other functions. In this pathway, oxidized thioredoxin is reduced by thioredoxin reductase, in order to form reduced thioredoxin. This reaction also uses NADPH as a cofactor. Reduced thioredoxin then, as part of a redox reaction, acts as the oxidizing agent and converts an oxidized electron acceptor into a reduced electron acceptor. This then produces oxidized thioredoxin, which can be further reduced and reused in other redox reactions.

PW002082

Pw002082 View Pathway
metabolic

Thioredoxin Pathway

Escherichia coli
Thioredoxins are a class of proteins that are used in redox reactions, and are found in all living organisms. In humans, they respond to reactive oxygen species, while in plants they are important for growth, photosynthesis, flowering and seed formation. In E. coli, thioredoxins catalyze a number of redox reactions, and are important in stress response, as well as other functions. In this pathway, oxidized thioredoxin is reduced by thioredoxin reductase, in order to form reduced thioredoxin. This reaction also uses NADPH as a cofactor. Reduced thioredoxin then, as part of a redox reaction, acts as the oxidizing agent and converts an oxidized electron acceptor into a reduced electron acceptor. This then produces oxidized thioredoxin, which can be further reduced and reused in other redox reactions.