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Trimethoprim
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
Trimethoprim图片
CAS NO:738-70-5
包装与价格:
包装价格(元)
10mM (in 1mL DMSO)电议
500mg电议
5g电议
10g电议

产品介绍
甲氧苄啶是一种抑菌抗生素和口服活性二氢叶酸还原酶抑制剂。
Cas No.738-70-5
别名甲氧苄啶
化学名5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
Canonical SMILESCOC1=CC(=CC(=C1OC)OC)CC2=CN=C(N=C2N)N
分子式C14H18N4O3
分子量290.32
溶解度≥ 12.25mg/mL in DMSO
储存条件Store at 2-8°C
General tipsFor obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping ConditionEvaluation sample solution : ship with blue ice
All other available size: ship with RT , or blue ice upon request
产品描述

Trimethoprim is a bacteriostatic antibiotic used mainly in the prophylaxis and treatment of urinary tract infections.Target: DHFRTrimethoprim (TMP), an inhibitor of dihydrofolate reductase, decreases the level of tetrahydrofolate supplying one-carbon units for biosynthesis of nucleotides, proteins, and panthotenate. TMP caused induction of DnaK, DnaJ, GroEL, ClpB, and IbpA/B Hsps. Among these Hsps, IbpA/B were most efficiently induced by TMP and coaggregated with the insoluble proteins [1]. Trimethoprim binds to dihydrofolate reductase and inhibits the reduction of dihydrofolic acid (DHF) to tetrahydrofolic acid (THF). THF is an essential precursor in the thymidine synthesis pathway and interference with this pathway inhibits bacterial DNA synthesis. Trimethoprim's affinity for bacterial dihydrofolate reductase is several thousand times greater than its affinity for human dihydrofolate reductase. Sulfamethoxazole inhibits dihydropteroate synthetase, an enzyme involved further upstream in the same pathway. Trimethoprim and sulfamethoxazole are commonly used in combination due to their synergistic effects. This drug combination also reduces the development of resistance that is seen when either drug is used alone [2].

References:
[1]. Laskowska, E., et al., Trimethoprim induces heat shock proteins and protein aggregation in E. coli cells. Curr Microbiol, 2003. 47(4): p. 286-9.
[2]. Brogden, R.N., et al., Trimethoprim: a review of its antibacterial activity, pharmacokinetics and therapeutic use in urinary tract infections. Drugs, 1982. 23(6): p. 405-30.