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Sigma-Aldrich

5-Fluoro-L-tryptophan

≥98.0% (HPLC)

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About This Item

Empirical Formula (Hill Notation):
C11H11FN2O2
CAS Number:
16626-02-1
Molecular Weight:
222.22
Beilstein:
5052680
MDL number:
MFCD00066470
UNSPSC Code:
12352202
eCl@ss:
32160406
PubChem Substance ID:
57651014
NACRES:
NA.77

Assay

≥98.0% (HPLC)

form

powder

optical purity

enantiomeric ratio: ≥99.5:0.5 (HPLC)

mp

270-280 °C

storage temp.

2-8°C

SMILES string

N[C@@H](Cc1c[nH]c2ccc(F)cc12)C(O)=O

InChI

1S/C11H11FN2O2/c12-7-1-2-10-8(4-7)6(5-14-10)3-9(13)11(15)16/h1-2,4-5,9,14H,3,13H2,(H,15,16)/t9-/m0/s1

InChI key

INPQIVHQSQUEAJ-VIFPVBQESA-N

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Application

Exogenous 5-fluoro-Trp is incorporated into proteins in normal protein synthesis. Since 19F is a useful reporter group, this provides a method for studying enzyme mechanisms by NMR.

Biochem/physiol Actions

5-Fluoro-Trp is nonspecifically cytotoxic. It is believed this is due to malfunctioning enzymes that have had replacements of Trp residues by 5-fluoro-Trp. However, at least one case is known where 5-fluoro-Trp substitution leads to significantly greater catalytic activity.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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G S Rule et al.
Biochemistry, 26(2), 549-556 (1987-01-27)
In this study we demonstrate the potential of combining fluorine-19 nuclear magnetic resonance (NMR) spectroscopy with molecular genetics. We are using the membrane-bound enzyme D-lactate dehydrogenase of Escherichia coli as a model system to characterize interactions between proteins and lipids.
E W Miles et al.
Biochemistry, 25(15), 4240-4249 (1986-07-29)
We are exploring the active site and the mechanism of the pyridoxal phosphate dependent reactions of the bacterial tryptophan synthase alpha 2 beta 2 complex by use of substrate analogues and of reaction intermediate analogues. Fluorine-19 nuclear magnetic resonance studies
Dereje Abate Negatu et al.
mBio, 10(2) (2019-03-28)
Indole propionic acid (IPA), produced by the gut microbiota, is active against Mycobacterium tuberculosisin vitro and in vivo However, its mechanism of action is unknown. IPA is the deamination product of tryptophan (Trp) and thus a close structural analog of
N V Visser et al.
FEBS letters, 583(17), 2785-2788 (2009-07-22)
The apoflavodoxin protein from Azotobacter vinelandii harboring three tryptophan (Trp) residues, was biosynthetically labeled with 5-fluorotryptophan (5-FTrp). 5-FTrp has the advantage that chemical differences in its microenvironment can be sensitively visualized via (19)F NMR. Moreover, it shows simpler fluorescence decay
Dmitri Toptygin et al.
The journal of physical chemistry. B, 110(51), 26292-26302 (2006-12-22)
The B1 domain of Streptococcal protein G (GB1) is a small, thermostable protein containing a single tryptophan residue. We recorded time-resolved fluorescence of the wild-type GB1 and its 5-fluorotryptophan (5FTrp) variant at more than 30 emission wavelengths between 300 and
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