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Pathway Description
Sulfanilamide Action Pathway
Homo sapiens
Category:
Metabolite Pathway
Sub-Category:
Drug Action
Created: 2023-08-25
Last Updated: 2023-11-27
Sulfanilamide is a synthetic bacteriostatic antibiotic from the sulfonamide drug class. This molecule consists of a sulfonamide functional group attached to an aniline. This drug is used to treat vulvovaginitis caused by Candida albicans even though it has a wide spectrum against most gram-positive and many gram-negative organisms. It acts by inhibiting the dihydropteroate synthase, an important enzyme in the synthesis of folic acid in bacteria. This enzyme uses para-aminobenzoic acid (PABA) to synthesize dihydropteric acid, a substrate to do folic acid. When this reaction is inhibited, the bacteria cannot produce purine anymore, resulting in the inhibition of the replication. Sulfanilamide is administered as a vaginal cream, thus it is directly absorbed through the vaginal mucosa. Side effects of this treatment include itching, burning, redness, and swelling. Long-term use of this drug may result in cancer of the thyroid gland.
References
Sulfanilamide Pathway References
Wishart DS, Feunang YD, Guo AC, Lo EJ, Marcu A, Grant JR, Sajed T, Johnson D, Li C, Sayeeda Z, Assempour N, Iynkkaran I, Liu Y, Maciejewski A, Gale N, Wilson A, Chin L, Cummings R, Le D, Pon A, Knox C, Wilson M: DrugBank 5.0: a major update to the DrugBank database for 2018. Nucleic Acids Res. 2018 Jan 4;46(D1):D1074-D1082. doi: 10.1093/nar/gkx1037.
Pubmed: 29126136
Nzila A: Inhibitors of de novo folate enzymes in Plasmodium falciparum. Drug Discov Today. 2006 Oct;11(19-20):939-44. doi: 10.1016/j.drudis.2006.08.003. Epub 2006 Sep 7.
Pubmed: 16997145
Djapa LY, Zelikson R, Delahodde A, Bolotin-Fukuhara M, Mazabraud A: Plasmodium vivax dihydrofolate reductase as a target of sulpha drugs. FEMS Microbiol Lett. 2006 Mar;256(1):105-11. doi: 10.1111/j.1574-6968.2005.00095.x.
Pubmed: 16487326
Swedberg G, Fermer C, Skold O: Point mutations in the dihydropteroate synthase gene causing sulfonamide resistance. Adv Exp Med Biol. 1993;338:555-8. doi: 10.1007/978-1-4615-2960-6_113.
Pubmed: 8304179
Dallas WS, Gowen JE, Ray PH, Cox MJ, Dev IK: Cloning, sequencing, and enhanced expression of the dihydropteroate synthase gene of Escherichia coli MC4100. J Bacteriol. 1992 Sep;174(18):5961-70. doi: 10.1128/jb.174.18.5961-5970.1992.
Pubmed: 1522070
Blattner FR, Plunkett G 3rd, Bloch CA, Perna NT, Burland V, Riley M, Collado-Vides J, Glasner JD, Rode CK, Mayhew GF, Gregor J, Davis NW, Kirkpatrick HA, Goeden MA, Rose DJ, Mau B, Shao Y: The complete genome sequence of Escherichia coli K-12. Science. 1997 Sep 5;277(5331):1453-62. doi: 10.1126/science.277.5331.1453.
Pubmed: 9278503
Bognar AL, Osborne C, Shane B: Primary structure of the Escherichia coli folC gene and its folylpolyglutamate synthetase-dihydrofolate synthetase product and regulation of expression by an upstream gene. J Biol Chem. 1987 Sep 5;262(25):12337-43.
Pubmed: 3040739
Kimlova LJ, Pyne C, Keshavjee K, Huy J, Beebakhee G, Bognar AL: Mutagenesis of the folC gene encoding folylpolyglutamate synthetase-dihydrofolate synthetase in Escherichia coli. Arch Biochem Biophys. 1991 Jan;284(1):9-16. doi: 10.1016/0003-9861(91)90254-g.
Pubmed: 1989505
Nonet ML, Marvel CC, Tolan DR: The hisT-purF region of the Escherichia coli K-12 chromosome. Identification of additional genes of the hisT and purF operons. J Biol Chem. 1987 Sep 5;262(25):12209-17.
Pubmed: 3040734
Bennett CD, Rodkey JA, Sondey JM, Hirschmann R: Dihydrofolate reductase: the amino acid sequence of the enzyme from a methotrexate-resistant mutant of Escherichia coli. Biochemistry. 1978 Apr 4;17(7):1328-37. doi: 10.1021/bi00600a030.
Pubmed: 350268
Stone D, Phillips AW, Burchall JJ: The amino-acid sequence of the dihydrofolate reductase of a trimethoprim-resistant strain of Escherichia coli. Eur J Biochem. 1977 Feb;72(3):613-24. doi: 10.1111/j.1432-1033.1977.tb11284.x.
Pubmed: 320005
Smith DR, Calvo JM: Nucleotide sequence of the E coli gene coding for dihydrofolate reductase. Nucleic Acids Res. 1980 May 24;8(10):2255-74. doi: 10.1093/nar/8.10.2255.
Pubmed: 6159575
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