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5.34339

Sigma-Aldrich

PTPσ Inhibitor, ISP

Synonym(s):

PTPσ Inhibitor, ISP, Protein Tyrosine Phosphatase σ Inhibitor, ISP

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About This Item

Empirical Formula (Hill Notation):
C177H306N66O54S3
Molecular Weight:
4318.93
UNSPSC Code:
12352200
NACRES:
NA.77

assay

≥98% (HPLC)

Quality Level

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
desiccated (hygroscopic)
protect from light

color

white

solubility

DMSO: 100 mg/mL
water: 100 mg/mL

storage temp.

−20°C

General description

A cell-permeable, TAT conjugated peptide derived from the protein tyrosine phosphatase sigma (PTPsigma) wedge domain that binds to PTPsigma and relieves glial-derived chondroitin sulfate proteoglycan (CSPG)-mediated inhibition. Shown to cross the blood-brain barrier. Does not bind to other CSPG receptors, such as LAR and NgRs. By blocking the PTPsigma-CSPG interaction it abolishes CSPG -mediated inhibition of axonal regrowth and sprouting. Shown to promote adult sensory neuron growth cone (~ 2.5 µM). Restores serotonergic innervations to the spinal cord below the level of injury and promotes progressive functional recovery of both locomotor and urinary systems after spinal cord injury in a rat model (11 µg/day).
A cell-permeable, TAT conjugated peptide derived from the protein tyrosine phosphatase sigma (PTPsigma) wedge domain that binds to PTPsigma and relieves glial-derived chondroitin sulfate proteoglycan (CSPG)-mediated inhibition. Shown to cross the blood-brain barrier. Does not bind to other CSPG receptors, such as LAR and NgRs. By blocking the PTPsigma-CSPG interaction it abolishes CSPG -mediated inhibition of axonal regrowth and sprouting. Shown to promote adult sensory neuron growth cone (~ 2.5 µM). Restores serotonergic innervations to the spinal cord below the level of injury and promotes progressive functional recovery of both locomotor and urinary systems after spinal cord injury in a rat model (11 µg/day).

Please note that the molecular weight for this compound is batch-specific due to variable water content. Please refer to the vial label or the certificate of analysis for the batch-specific molecular weight. The molecular weight provided represents the baseline molecular weight without water.

Biochem/physiol Actions

Cell permeable: yes
Primary Target
PTPσ
Reversible: yes

Packaging

Packaged under inert gas

Warning

Toxicity: Standard Handling (A)

Sequence

NH2-GRKKRRQRRRCDMAEHMERLKANDSLKLSQEYESI-NH2

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Lang, B. T, et al. 2015. Nature.518, 404.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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