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HomeProduct name listTPCK

TPCK

Synonym(s):(S)-1-Chloro-3-tosylamido-4-phenyl-2-butanone;(S)-1-Chloro-4-phenyl-3-tosylamido-2-butanone;Nα-Tosyl-Phe Chloromethyl Ketone;Tosyl-L-phenylalanyl-chloromethane;TPCK

  • CAS NO.:402-71-1
  • Empirical Formula: C17H18ClNO3S
  • Molecular Weight: 351.85
  • MDL number: MFCD00000935
  • EINECS: 206-954-6
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-19 15:53:33
TPCK Structural

What is TPCK?

Description

TPCK (402-71-1) is an irreversible inhibitor of the serine protease chymotrypsin.1 It also inhibits certain cysteine proteases (bromelain, ficin, papain).1 TPCK inhibited (IC50 = 5 μM) the mitogen-induced activation of pp70s6k, a mitogen-regulated serine/threonine kinase involved in the G1 to S phase transition of the cell cycle.2

Chemical properties

white crystalline powder

The Uses of TPCK

N-α-Tosyl-L-phenylalanylchloromethane is a proteinase inhibitors with apoptotic function. Studies have shown that it induces caspase-dependent apoptosis in Epstein-Barr virus (EBV)-transformed human B cell lines with release of pro-apoptotic proteins from mitochondria. It also results in down-regulation of the anti-apoptotic proteins and caspase-dependent cleavage of two anti-apoptotic proteins. I t promotes dephosphorylation of p53 on serine residues.

The Uses of TPCK

N-α-Tosyl-L-phenylalanylchloromethane is a proteinase inhibitors with apoptotic function. Studies have shown that it induces caspase-dependent apoptosis in Epstein-Barr virus (EBV)-transformed human B cell lines with release of pro-apoptotic proteins from mitochondria. It also results in down-regulation of the anti-apoptotic proteins and caspase-dependent cleavage of two anti-apoptotic proteins. It promotes dephosphorylation of p53 on serine residues.

What are the applications of Application

TPCK is a serine/cysteine protease inhibitor, which acts as an alkylating agent that interferes with translation

Definition

ChEBI: The N-tosyl derivative of L-phenylalanyl chloromethyl ketone.

Biochem/physiol Actions

Blocks the LPS- or cytokine-induced activation of nuclear factor κB (NFκB), which, in turn, blocks the induction of iNOS and COX-2 transcription. Blocks activation of pp70s6k by all mitogens. Blocks apoptosis cell lines by inhibiting the processing of caspases in some cell lines and to some stimuli. Also blocks apoptosis initiated by Taxol (in MCF-7 human breast carcinoma cells).

Safety Profile

Experimental reproductive effects. A flammable liquid. When heated to decomposition it emits toxic fumes of NOx, SOx, and Cl-.

References

1) Bond and Butler, (1987) Intracellular proteases; Annu. Rev. Biochem., 56 333 2) Grammer and Blenis (1996) The serine protease inhibitors, tosylphenylalanine chloromethylketone and tosyllysine chloromethylketone, potently inhibit pp70s6k activation; J. Biol. Chem., 271 23650

Properties of TPCK

Melting point: 106-108 °C(lit.)
Boiling point: 509.9±60.0 °C(Predicted)
Density  1.1350 (rough estimate)
refractive index  1.6100 (estimate)
storage temp.  -20°C
solubility  DMSO: >10 mg/mL stable for several months at 4°C.
form  powder
pka 8.71±0.50(Predicted)
color  white
BRN  2895215
Stability: Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20° for up to 3 months.
CAS DataBase Reference 402-71-1
EPA Substance Registry System Benzenesulfonamide, N-[(1S)-3-chloro-2-oxo-1-(phenylmethyl)propyl]-4-methyl- (402-71-1)

Safety information for TPCK

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H315:Skin corrosion/irritation
H318:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.

Computed Descriptors for TPCK

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