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SML2988

Sigma-Aldrich

Tat-NR2B9c trifluoroacetate

≥95% (HPLC)

Synonym(s):

NA-1, trifluoroacetate salt, Tyr-Gly-Arg-Lys-Lys-Arg-Arg-Gln-Arg-Arg-Arg-Lys-Leu-Ser-Ser-Ile-Glu-Ser-Asp-Val, trifluoroacetate salt, YGRKKRRQRRR-KLSSIESDV, trifluoroacetate salt

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About This Item

Empirical Formula (Hill Notation):
C105H188N42O30 · xC2HF3O2
CAS Number:
Molecular Weight:
2518.88 (free base basis)
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

Assay

≥95% (HPLC)

form

powder

color

white to off-white

storage temp.

−20°C

Biochem/physiol Actions

NMDAR-PSD-95 interaction blocking peptide with neuroprotective efficacy in vitro and in vivo.
Tat-NR2B9c (NA-1) is a 20-mer peptide composed of a membrane-permeant HIV-1 Tat protein transduction domain sequence (a.a. 47-57) N-terminal to the NMDA receptor (NMDAR) GluN2B carboxyl tail sequence KLSSIESDV that blocks intracellular NMDAR-PSD-95 interaction-induced neurotoxic signaling without affecting NMDAR-mediated synaptic activity or calcium influx. NA-1 protects cultured cortical neurons from NMDA excitotoxicity (50 nM; 20/40/100 μM NMDA) and reduces focal ischemic brain damage in rats in vivo (3 μmol/kg iv. bolus 1 hr post MCAO onset).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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