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Safety Information

SML2176

Sigma-Aldrich

R283

≥98% (HPLC)

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Synonym(s):
1,3-Dimethyl-2-(2-oxopropylthio)-1H-imidazol-3-ium chloride, 1,3-Dimethyl-2-[(2-oxopropyl)thio]imidazolium chloride, NTU283, Rob283
Empirical Formula (Hill Notation):
C8H13N2OS · Cl
CAS Number:
Molecular Weight:
220.72
MDL number:
UNSPSC Code:
12352200

Assay

≥98% (HPLC)

form

powder

color

white to beige

solubility

H2O: 2 mg/mL, clear

storage temp.

−20°C

SMILES string

C[N+]1=C(SCC(C)=O)N(C)C=C1.[Cl-]

InChI

1S/C8H13N2OS.ClH/c1-7(11)6-12-8-9(2)4-5-10(8)3;/h4-5H,6H2,1-3H3;1H/q+1;/p-1

InChI key

NFZZAUJDSJWLTQ-UHFFFAOYSA-M

Biochem/physiol Actions

R283 (NTU283; Rob283) is a cell-permeable 2-[(2-oxopropyl)thio] imidazolium derivative that acts as an irreversible inhibitor against factor XIIIa (FXIIIa) and transglutaminase 2 (TG2, TGase II) by targeting FXIIIa and TG2 active site cysteine (Cys) for acetonylation in a selective manner with little glutathione (GSH) inhibitory potency (app 2nd order rate const = 23000/M/s, 19000/M/s, 0.12/M/s, respectively). A useful tool for investigating TG2-mediated cellular functions (typical conc. range: 25-500 μM).

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Alanood S Algarni et al.
Biochemical pharmacology, 128, 55-73 (2017-01-10)
The PAC
Yirong Ding et al.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 89, 1310-1319 (2017-03-23)
In view of the facts that tTG protein expression level and its enzyme activity increase in AD brains of both individuals and transgenic animals and compelling evidence of the involvement of inflammation in AD pathogenesis, tTG could be involved in
Monica Currò et al.
Amino acids, 49(3), 659-669 (2016-11-20)
Deposition of amyloid-beta (Aβ) peptides has been shown to induce the release of inflammatory factors by activated microglia and brain infiltrating monocytes/macrophages. Interestingly, the enzyme transglutaminase 2 (TG2) has been shown to play a key role in neuroinflammation and regulation
Luigi Maiuri et al.
Gastroenterology, 129(5), 1400-1413 (2005-11-16)
In celiac disease (CD), transglutaminase type II (TG2) has 2 fundamental roles: (1) as the autoantigen recognized by highly specific autoantibodies and (2) the modifier of pathogenic gliadin T-cell epitopes. It follows that inhibition of TG2 might represent an attractive
C A Harrison et al.
The British journal of dermatology, 156(2), 247-257 (2007-01-17)
The transglutaminase (TG) family consists of eight distinct isoforms. TG types 1, 3 and 5 play a major role in normal skin development, with TG2 also being elevated during dermal wounding. TG1, 3 and 5 are responsible for the cross-linking

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