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Merck

M0534

5-Methyl-DL-tryptophan

tryptophan analog

Synonym(s):

5-Methyltryptophan

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About This Item

Empirical Formula (Hill Notation):
C12H14N2O2
CAS Number:
Molecular Weight:
218.25
UNSPSC Code:
12352209
NACRES:
NA.26
PubChem Substance ID:
EC Number:
213-453-6
Beilstein/REAXYS Number:
20225
MDL number:
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Quality Level

assay

≥97% (HPLC)

form

powder

color

white to faint yellow

mp

280-282 °C

application(s)

peptide synthesis

storage temp.

2-8°C

SMILES string

Cc1ccc2[nH]cc(CC(N)C(O)=O)c2c1

InChI

1S/C12H14N2O2/c1-7-2-3-11-9(4-7)8(6-14-11)5-10(13)12(15)16/h2-4,6,10,14H,5,13H2,1H3,(H,15,16)

InChI key

HUNCSWANZMJLPM-UHFFFAOYSA-N

Application


  • Amelioration of colitis through modulation of gut microbiota: The metabolite 5-Methyl-ᴅʟ-tryptophan (5-MT), derived from Angelica sinensis polysaccharides, was found to ameliorate colitis by modulating gut microbiota and the TLR4/MyD88/NF-κB signaling pathway. This suggests a potential application of 5-MT in inflammatory bowel disease research and therapy (Zou et al., 2023).

  • Enzymatic synthesis of tryptophan derivatives: A study on the one-pot enantioselective synthesis of (S)-spirobrassinin and non-natural (S)-methylspirobrassinin from amino acids highlights a method using a turnip enzyme. This research outlines a novel approach to synthesizing tryptophan derivatives, potentially useful in biochemical assays (Ryu et al., 2021).

Biochem/physiol Actions

5-Methyl-DL-tryptophan inhibits the synthesis of anthranilate compounds that are the first steps in the biosynthesis of tryptophan in Neurospora crassa. 5-Methyl-DL-tryptophan is a corepressor of the E. coli trp repressor.
5-Methyl-DL-tryptophan may be used to select genetic mutants of PS strain of Methanococcus voltae (archaebacteria). 5-Methyl-tryptophan is a repressor trp operon expression. 5-Methyl-tryptophan is a substrate for tryptophanase. 5-Methyl-tryptophan inhibits the induction of anthranilate synthase activity by elicitors in oats.


Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)



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Y Tozawa et al.
Plant physiology, 126(4), 1493-1506 (2001-08-14)
Anthranilate synthase (AS) is a key enzyme in the synthesis of tryptophan (Trp), indole-3-acetic acid, and indole alkaloids. Two genes, OASA1 and OASA2, encoding AS alpha-subunits were isolated from a monocotyledonous plant, rice (Oryza sativa cv Nipponbare), and were characterized.
H J Cho et al.
Plant physiology, 123(3), 1069-1076 (2000-07-13)
A cDNA clone that encodes a feedback-insensitive anthranilate synthase (AS), ASA2, isolated from a 5-methyl-tryptophan (Trp) (5MT)-resistant tobacco cell line under the control of the constitutive cauliflower mosaic virus 35S promoter, was introduced into the forage legume Astragalus sinicus by
H Kisaka et al.
Plant molecular biology, 38(5), 875-878 (1998-12-23)
A cDNA clone encoding rice tryptophan synthase beta (TSB) was isolated and its transcript level was examined in TR-No. 73, a derivative of a previously isolated rice mutant (TR-1) that is resistant to 5-methyltryptophan. The cDNA sequence of the rice