Sulfanilamide

Sulfanilamide is a competitive inhibitor for bacterial enzyme dihydropteroate synthetase with IC50 of 320 μM.Target: dihydropteroate synthetase; AntibacterialSulfanilamide containing the sulfonamide functional group displays inhibitory activity for dihydropteroate synthetase partially purified from Escherichia coli which normally uses para-aminobenzoic acid (PABA) for synthesizing the necessary folic acid acting as a coenzyme in the synthesis of purine, pyrimidine and other amino acids, exhibiting an IC 50 of 320 μM for dihydropteroate synthetasea and Km of 2.5 uM for PABA [1]. Sulfanilamide shows IC50 of 286.8 μg/mL for recombinant S. cerevisiae strains with wild-type FOL1 genes, but the single mutation 55Trp to 55Ala or 57Pro to 57Ser within the putative active site of the fungal DHPS confers resistance to Sulfanilamide with IC50 of >800 μg/mL [2]. Administration of Sulfanilamide with the dosage of 100 mg/kg/day is effective in the prevention of P. carinii infection in the immunosuppressed rat model. When the dosage of sulfaguanidine and Sulfanilamide reduced to 10 mg/kg/day, breakthrough P. carinii infection occurs in the rats [3].

Signaling Pathways >> Anti-infection >> Bacterial

Research Areas >> Infection

[1]. McCullough, J.L. and T.H. Maren, Inhibition of dihydropteroate synthetase from Escherichia coli by sulfones and sulfonamides. Antimicrob Agents Chemother, 1973. 3(6): p. 665-9.

[2]. Meneau, I., et al., Pneumocystis jiroveci dihydropteroate synthase polymorphisms confer resistance to sulfadoxine and sulfanilamide in Saccharomyces cerevisiae. Antimicrob Agents Chemother, 2004. 48(7): p. 2610-6.

[3]. Hughes, W.T. and J. Killmar, Monodrug efficacies of sulfonamides in prophylaxis for Pneumocystis carinii pneumonia. Antimicrob Agents Chemother, 1996. 40(4): p. 962-5.

Puromycin 2HCl | Geneticin | Tunicamycin | Hygromycin B | Salinomycin | Avibactam sodium | Neomycin sulfate | Vaborbactam | Methicillin SodiuM | Rifampicin | Metronidazole | Carbenicillin disodium | Ceftazidime | Eravacycline dihydrochloride | cefotaxime sodium

DATA ITEMS CITED :

30

MOLECULAR FORMULA :

C6-H8-N2-O2-S

MOLECULAR WEIGHT :

172.22

WISWESSER LINE NOTATION :

ZSWR DZ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

3900 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1400 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

3 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

5 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

2900 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

500 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Mammal - dog

DOSE/DURATION :

2 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rabbit

DOSE/DURATION :

1300 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - guinea pig

DOSE/DURATION :

3130 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

180 gm/kg/90D-I

TOXIC EFFECTS :

Blood - changes in spleen Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

82200 mg/kg/39W-I

TOXIC EFFECTS :

Nutritional and Gross Metabolic - other changes

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Mammal - dog

DOSE/DURATION :

60 gm/kg/30D-I

TOXIC EFFECTS :

Related to Chronic Data - death

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

135 mg/kg/9W-I

TOXIC EFFECTS :

Tumorigenic - Carcinogenic by RTECS criteria Tumorigenic - tumors at site of application

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Unreported

DOSE :

974 mg/kg

SEX/DURATION :

female 34-37 week(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - blood and lymphatic systems (including spleen and marrow)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

22 mg/kg

SEX/DURATION :

female 1-22 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Newborn - live birth index (measured after birth) Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4 per # born alive) Reproductive - Effects on Newborn - weaning or lactation index (e.g., # alive at weaning per # alive at day 4)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

22 mg/kg

SEX/DURATION :

female 1-22 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)

TYPE OF TEST :

Cytogenetic analysis

MUTATION DATA

TYPE OF TEST :

DNA damage

TEST SYSTEM :

Rodent - rat Liver

DOSE/DURATION :

30 umol/L

REFERENCE :

SinJF# Personal Communication from J.F. Sina, Merck Institute for Therapeutic Research, West Point, PA 19486, Oct. 26, 1982 Volume(issue)/page/year: 26OCT1982 *** REVIEWS *** TOXICOLOGY REVIEW JMSHAO Journal of the Mount Sinai Hospital (New York). (New York, NY) V.1-36, 1934-69. For publisher information, see MSJMAZ. Volume(issue)/page/year: 10,343,1943 TOXICOLOGY REVIEW PCNAA8 Pediatric Clinics of North America. (W.B. Saunders Co., W. Washington Sq., Philadelphia, PA 19105) V.1- 1954- Volume(issue)/page/year: 8,413,1961 TOXICOLOGY REVIEW DPIRDU Dangerous Properties of Industrial Materials Report. (Van Nostrand Reinhold, 115 Fifth Ave., New York, NY 10003) V.1- 1981- Volume(issue)/page/year: 2(6),13,1982 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84382 No. of Facilities: 149 (estimated) No. of Industries: 3 No. of Occupations: 9 No. of Employees: 3565 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84382 No. of Facilities: 654 (estimated) No. of Industries: 6 No. of Occupations: 11 No. of Employees: 6529 (estimated) No. of Female Employees: 3131 (estimated)