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907278

Sigma-Aldrich

H-L-Photo-leucine HCl

≥98%

Synonym(s):

(S)-2-Amino-3-(3-methyl-3H-diazirin-3-yl)propanoic acid hydrochloride, (S)-2-Amino-3-(3H-diazirin-3-yl)butanoic acid hydrochloride, Diazirine amino acid, Photo-Leu, Photo-crosslinking amino acid, Photoprobe building block

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About This Item

Empirical Formula (Hill Notation):
C5H10ClN3O2
Molecular Weight:
179.60
UNSPSC Code:
12352209

Assay

≥98%

form

solid

reaction suitability

reaction type: solution phase peptide synthesis

availability

available only in USA

application(s)

peptide synthesis

storage temp.

−20°C

Application

H-L-Photo-leucine HCl is a diazirine-containing leucine amino acid and multifunctional photo-crosslinker. Its incorporation into peptides or small-molecule probes and tools allows for photoaffinity labeling of cellular targets and protein-protein interactions upon UV light (∼360 nm) irradiation to form a covalent bond. This and other multifunctional probe building blocks will continue to accelerate drug discovery research for probing cellular mechanisms, target ID/validation, and understanding traditionally undruggable targets. An Fmoc-protected version is also available as 907391.

Pictograms

Flame

Signal Word

Danger

Hazard Statements

Hazard Classifications

Self-react. C

Storage Class Code

5.2 - Organic peroxides and self-reacting hazardous materials

WGK

WGK 3


Certificates of Analysis (COA)

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Journal of the American Society for Mass Spectrometry, 27(4), 633-645 (2016-01-29)
Noncovalent complexes of hydrophobic peptides GLLLG and GLLLK with photoleucine (L*) tagged peptides G(L* n L m )K (n = 1,3, m = 2,0) were generated as singly charged ions in the gas phase and probed by photodissociation at 355
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We report a protein labeling method using nonselective carbene reactions of sufficiently high efficiency to permit detection by mass spectrometric methods. The approach uses a diazirine-modified amino acid (l-2-amino-4,4'-azipentanoic acid, "photoleucine") as a label source, which is converted to a

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