68-41-7[NH3+][C@@H]1CON=C1[O-]DYDCUQKUCUHJBH-UWTATZPHSA-ND-cycloserine zwitterion is a zwitterion resulting from the transfer of a proton from the ring nitrogen to the primary amino group of D-cycloserine. The major species at pH 7.3. It is a tautomer of a D-cycloserine.
Polyketides [PK] -> Non-ribosomal peptide/polyketide hybrids [PK14]
Polyketides [PK] -> Non-ribosomal peptide/polyketide hybrids [PK14]
Soluble
8.77e+02 g/L
安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
Cycloserine, a broad-spectrum antibiotic, may be bactericidal or bacteriostatic, depending on its concentration at the site of infection and the susceptibility of the organism. Cycloserine works by blocking the formation of these peptidoglycans. By doing this the walls of the bacteria become weak and it results in the death of the bacteria
Cycloserine is an analog of the amino acid D-alanine. It interferes with an early step in bacterial cell wall synthesis in the cytoplasm by competitive inhibition of two enzymes, L-alanine racemase, which forms D-alanine from L-alanine, and D-alanylalanine synthetase, which incorporates D-alanine into the pentapeptide necessary for peptidoglycan formation and bacterial cell wall synthesis.
解説シクロセリンは,抗生物質。数種の放線菌が産生。アミノ酸のD-アラニンと拮抗(きっこう)して細菌の細胞壁合成を阻害する作用があり,おもに耐性結核菌感染症の治療に用いる。副作用として各種の精神障害,神経系障害を起こすことがあるが,このような障害の現れたときは投与を中止する。(図)→耐性菌株式会社平凡社 百科事典マイペディアについて 情報
使用D-Cycloserine inhibits cell wall biosynthesis (D-Ala peptide bond formation). D-Cycloserine also prevents conversion of D-Ala to L-Ala. D-Cycloserine is an bacteriostatic. D-Cycloserine is an antibiot ic against Gram-negative bacteria.
一般的な説明Chemical structure: amino acid derivatives
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68-41-7CHEBI:74159化学的特性White to pale yellow cryst. powder
純化方法Purify cycloserine by recrystallisation from aqueous EtOH or MeOH or aqueous NH3/EtOH or isoPrOH. Also recrystallise it from aqueous ammoniacal solution at pH 10.5 (100mg/mL) by diluting with 5 volumes of isopropanol and then adjusting to pH 6 with acetic acid. An aqueous solution, buffered to pH 10 with Na2CO3, can be stored in a refrigerator for 1week without decomposition. UV: max at 226nm (A1cm 1% 4.02). The tartrate salt has m 165-166o (dec), 166-168o (dec), and [] D 24 -41o (c 0.7, H2O). [Stammer et al. J Am Chem Soc 79 3236 1959, UV: Kuehl J Am Chem Soc 77 2344 1955, Beilstein 27 III/IV 5549.]