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Safety Information

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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1 MG
¥8,540
5 MG
¥34,230

¥8,540

List Price¥12,200Save 30%

Estimated to ship onApril 07, 2025


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1 MG
¥8,540
5 MG
¥34,230

About This Item

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

¥8,540

List Price¥12,200Save 30%

Estimated to ship onApril 07, 2025


Request a Bulk Order

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


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

SML2988-1MG:
SML2988-5MG:
SML2988-VAR:
SML2988-BULK:


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Karen Tse et al.
Journal of neuroscience research, 97(11), 1378-1392 (2019-05-16)
Antiepileptogenic agents that prevent the development of epilepsy following a brain insult remain the holy grail of epilepsy therapeutics. We have employed a label-free proteomic approach that allows quantification of large numbers of brain-expressed proteins in a single analysis in
Gabriella MacDougall et al.
Journal of molecular neuroscience : MN, 61(2), 235-246 (2016-11-21)
We have previously reported that cationic poly-arginine and arginine-rich cell-penetrating peptides display high-level neuroprotection and reduce calcium influx following in vitro excitotoxicity, as well as reduce brain injury in animal stroke models. Using the neuroprotective peptides poly-arginine R12 (R12) and
Diego Milani et al.
Brain research bulletin, 135, 62-68 (2017-10-02)
Following positive results with the poly-arginine peptide R18 when administered intravenously 30 or 60min after permanent and/or transient middle cerebral artery occlusion (MCAO; 90min) in the rat, we examined the effectiveness of the peptide when administered 2h after MCAO. R18
Zhifeng Wang et al.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism, 39(8), 1588-1601 (2018-03-08)
Postsynaptic density protein-95 (PSD95) plays important roles in the formation, differentiation, remodeling, and maturation of neuronal synapses. This study is to estimate the potential role of PSD95 in cognitive dysfunction and synaptic injury following intracerebral hemorrhage (ICH). The interaction between
Yue Liu et al.
Anesthesia and analgesia, 118(6), 1345-1354 (2014-05-21)
N-methyl-D-aspartate receptor (NMDARs)-dependent central sensitization plays an important role in cancer pain. Binding of NMDAR subunit 2B (NR2B) by postsynaptic density protein-95 (PSD-95) can couple NMDAR activity to intracellular enzymes, such as neuronal nitric oxide synthase (nNOS), facilitate downstream signaling

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