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Key Documents

900607

Sigma-Aldrich

2,5-Dibromohexanediamide

≥95%

Synonym(s):

2,5-Dibromoadipamide, DBHDA

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About This Item

Empirical Formula (Hill Notation):
C6H10Br2N2O2
CAS Number:
Molecular Weight:
301.96
MDL number:
UNSPSC Code:
12352200
NACRES:
NA.22

Quality Level

Assay

≥95%

form

solid

storage temp.

2-8°C

InChI

1S/C6H10Br2N2O2/c7-3(5(9)11)1-2-4(8)6(10)12/h3-4H,1-2H2,(H2,9,11)(H2,10,12)

InChI key

PLSXNAQEJOGNKQ-UHFFFAOYSA-N

Application

This compound has been shown to be a useful reagent for the conversion of cysteine to dehydroalanine (DHA) in peptides or proteins. This enables chemical mutagenesis in which DHA can be efficiently reacted with iodide building blocks to add various natural and unnatural side chains on proteins. It was also shown that other modifications could be added through DHA such as phosphorylation, methylation, and glycosylation. In other research it was shown that DHA can be used to make ubiquitin conjugates that have a bond that mimics the native isopeptide bond.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Methods for converting cysteine to dehydroalanine on peptides and proteins.
Chalker JM, et al.
Chemical Science, 2, 1666-1676 (2011)
Posttranslational mutagenesis: A chemical strategy for exploring protein side-chain diversity.
Wright TH, et al.
Science, 4(354), 6312-6312 (2016)
Protein ubiquitination via dehydroalanine: development and insights into the diastereoselective 1,4-addition step.
Meledin R, et al.
Organic & Biomolecular Chemistry, 14(21), 4817-4823 (2016)
Philip R Lindstedt et al.
Cell chemical biology, 28(1), 70-77 (2020-11-21)
Great advances have been made over the last four decades in therapeutic and diagnostic applications of antibodies. The activity maturation of antibody candidates, however, remains a significant challenge. To address this problem, we present a method that enables the systematic

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