Triptofan
| Nama | |
|---|---|
| Nama IUPAC
Tryptophan atau (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
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| Nama lain
2-Amino-3-(1H-indol-3-yl)propanoic acid
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| Pengecam | |
Imej model 3D Jmol
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| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| DrugBank | |
| ECHA InfoCard | 100.000.723 |
| KEGG | |
PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Sifat | |
| C11H12N2O2 | |
| Jisim molar | 204.23 g·mol−1 |
| Larut: 0.23 g/L pada 0 °C, 11.4 g/L pada 25 °C, | |
| Keterlarutan | Larut dalam alkohol panas, hidroksida alkali; tidak larut dalam kloroform. |
| Keasidan (pKa) | 2.38 (karboksil), 9.39 (amino)[1] |
Kecuali jika dinyatakan sebaliknya, data diberikan untuk bahan-bahan dalam keadaan piawainya (pada 25 °C [77 °F], 100 kPa). | |
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| Rujukan kotak info | |
Triptofan (singkatan IUPAC-IUBMB: Trp atau W; singkatan IUPAC: L-Trp or D-Trp; dijual bagi kegunaan perubatan sebagai Tryptan)[2] ialah salah satu daripada 22 asid amino piawai dan penting dalam pemakanan manusia. Ia dikodkan dalam kod genetik piawai sebagai kodon UGG. Cuma L-stereoisomer triptofan digunakan dalam struktur atau enzim protein, namun R-stereoisomer kadang kala ditemui dalam peptida yang dihasilkan secara semula jadi (contohnya, kontrifan peptida bisa marin).[3] Ciri struktur yang membezakan triptofan ialah ia mengandungi kelompok berfungsi indola.
Lihat juga
Rujukan
- ^ Dawson RMC; dll. (1969). Data for Biochemical Research. Oxford: Clarendon Press. ISBN 0-19-855338-2. Explicit use of et al. in:
|author=(bantuan) - ^ IUPAC-IUBMB Joint Commission on Biochemical Nomenclature. "Nomenclature and Symbolism for Amino Acids and Peptides". Recommendations on Organic & Biochemical Nomenclature, Symbols & Terminology etc. Dicapai pada 2009-05-17.
- ^ Pallaghy PK, Melnikova AP, Jimenez EC, Olivera BM, Norton RS (1999). "Solution structure of contryphan-R, a naturally-occurring disulfide-bridged octapeptide containing D-tryptophan: comparison with protein loops". Biochemistry. 38 (35): 11553–9. doi:10.1021/bi990685j. PMID 10471307.CS1 maint: multiple names: authors list (link)
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