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Pathways

PathWhiz ID Pathway Meta Data

PW000096

Pw000096 View Pathway
disease

CHILD Syndrome

Homo sapiens
CHILD Syndrome, (Congenital Hemidysplasia with Icthyosiform Erythroderma and Limb Defects; Ichthyosiform Eruthroderma, Unilateral, with Epsilateral Malformations, Especially Absence Deformity of Limbs) is caused by a mutation in the gene encoding NADH steroid dehydrogenase-like protein (NSDHL). A defect in sterol-4 alpha-carboxylate 3-dehydrogenase, which normally catalyzes the reaction 3-beta-hydroxy-4-beta-methyl-5-alpha-cholest-7-ene-4-alpha-carboxylate + NAD+ = 4-alpha-methyl-5-alpha-cholest-7-en-3-one + CO2 + NADH, causes accumulation of 8(9)cholestenol and 8-dehydrocholesterol in plasma. Symptoms of CHILD syndrome include hearing defects, hemidysplasia, unilateral hypomelia, ichthyosiform nevi, limb abnormalities, lung hypoplasia, and punctate calcifications.

PW095688

Pw095688 View Pathway
metabolic

Chitin Biosynthesis

Drosophila melanogaster
Chitin is a linear homopolymer of N-acetyl-β-D-glucosamine residues linked by β-1,4 glycosidic bonds to form microfibrils. These become the structural component to cell walls and many extracellular matrices such as cuticles and exoskeleton of insects. This process is highly conserved and occurs in many different organisms including insects and fungi. Chitin exist in several crystaline forms termed α, β and γ chitin, the most abundant being α chitin (reviewed in [Merzendorfer11]). Chitin and lipids are secreted by epidermal cells and form the basis for the cuticle material and layered structure.

PW122516

Pw122516 View Pathway
metabolic

Chitin Digestion

Clostridium taeniosporum

PW002042

Pw002042 View Pathway
metabolic

Chitobiose Degradation

Escherichia coli
Diacetylchitobiose (also known as N,N'-diacetylchitobiose and chitobiose) is a sole source of carbon for E.coli. PTS system mannitol-specific EIICBA component facilitates the imports of diacetylchitobiose as well as the phosphorylation to diacetylchitobiose 6'-phosphate. Later on, diacetylchitobiose 6'-phosphate is hydrolyzed to N-monoacetylchitobiose 6'-phosphate, which also produce acetic acid. N-monoacetylchitobiose 6'-phosphate undergoes further hydrolyzation to form N-Acetyl-D-Glucosamine 6-Phosphate and glucosamine by monoacetylchitobiose-6-phosphate hydrolase.

PW147038

Pw147038 View Pathway
metabolic

Chlophedianol Drug Metabolism Pathway

Homo sapiens

PW145445

Pw145445 View Pathway
drug action

Chloral hydrate Drug Metabolism Action Pathway

Homo sapiens

PW128198

Pw128198 View Pathway
drug action

Chlorambucil Action Pathway

Homo sapiens
Chlorambucil is an antineoplastic agent from the nitrogen mustard alkylating class. It is indicated in the treatment of chronic lymphatic leukemia, lymphosarcoma, giant follicular lymphoma, Hodgkin's disease, non-Hodgkin's lymphoma, and Waldenström’s macroglobulinemia. This class of agents is named like that for their ability to add alkyl groups to many electronegative groups. They work by three different mechanisms all of which achieve the same result: death of the cancerous cell. The first mechanism of action is to attach alkyl groups to DNA bases. This causes the fragmentation of the DNA by repair enzymes. Secondly, the alkylating agents cause damage to DNA via the formation of cross-links. The cross-links prevent the DNA from being separated for synthesis or transcription. The third mechanism of action is the induction of mispairing of the bases, leading to many mutations.

PW144419

Pw144419 View Pathway
drug action

Chlorambucil Drug Metabolism Action Pathway

Homo sapiens

PW000706

Pw000706 View Pathway
drug action

Chloramphenicol Action Pathway

Homo sapiens
Chloramphenicol, trade names Pentamycetin and Chloromycetin, is a broad spectrum antibiotic originally derived from Streptomyces venezuelae. It inhibits protein synthesis by binding the 50S ribosomal subunit to prevent bacterial growth. Bacterial resistance has occurred through decreased uptake or permeability, ribosomal mutation and inactivation by acetylation. Adverse side effects such as aplastic anemia, bone-marrow suppression or Gray syndrome in neonates and infants have resulted in limited use. However, due to ampicillin-resistance bacterial meningitis there has been a renewed interest in the drug.

PW127416

Pw127416 View Pathway
drug action

Chloramphenicol Action Pathway - New

Homo sapiens
Chloramphenicol, trade names Pentamycetin and Chloromycetin, is a broad spectrum antibiotic originally derived from Streptomyces venezuelae . It inhibits protein synthesis by binding the 50S ribosomal subunit to prevent bacterial growth. Bacterial resistance has occurred through decreased uptake or permeability, ribosomal mutation and inactivation by acetylation. Adverse side effects such as aplastic anemia, bone-marrow suppression or Gray syndrome in neonates and infants have resulted in limited use. However, due to ampicillin-resistant bacterial meningitis, there has been a renewed interest in the drug.