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Merck
CN

L5538

Leu-Ser-Lys-Leu-NH2

≥95% (HPLC), suitable for mass spectrometry

Synonym(s):

LSKL-NH2

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About This Item

Empirical Formula (Hill Notation):
C21H42N6O5
Molecular Weight:
458.60
PubChem Substance ID:
329817627
UNSPSC Code:
12352200
MDL number:
MFCD03093441

Key Documents

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Product Name

Leu-Ser-Lys-Leu-NH2, ≥95% (HPLC)

InChI

1S/C21H42N6O5/c1-12(2)9-14(23)19(30)27-17(11-28)21(32)25-15(7-5-6-8-22)20(31)26-16(18(24)29)10-13(3)4/h12-17,28H,5-11,22-23H2,1-4H3,(H2,24,29)(H,25,32)(H,26,31)(H,27,30)/t14-,15-,16-,17-/m0/s1

SMILES string

CC(C)C[C@H](N)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(N)=O

InChI key

YOKXDNNIFSAXBY-QAETUUGQSA-N

assay

≥95% (HPLC)

form

powder

technique(s)

mass spectrometry (MS): suitable

color

white

storage temp.

−20°C

Biochem/physiol Actions

Leu-Ser-Lys-Leu-NH2 (LSKL-NH2) is found at the C-terminal of the neurotoxic wasp venom α-pompilidotoxin (α-PMTX). A similar peptide Leu-Ser-Lys-Leu (LSKL) is a used to study the activation of TGF-β1 via thrombospondin.
Used to study the activation of TGF-β1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
SLBL2690V
SLBD3644V
SLBB2804V
081M1768V
081M1769V

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K Konno et al.
Biochemical and biophysical research communications, 250(3), 612-616 (1998-10-24)
Novel peptide neurotoxins, alpha- and beta-pompilidotoxins (alpha- and beta-PMTXs), were purified from the venoms of the solitary wasps Anoplius samariensis and Batozonellus maculifrons. Their structures were analyzed mostly by MALDI-TOF-MS, which were corroborated by solid-phase synthesis. alpha-PMTX, with 13 amino
Yurong Zhang et al.
Brain research bulletin, 149, 106-119 (2019-04-22)
Epilepsy is accompanied by angiogenesis and blood-brain barrier (BBB) disruption. The transforming growth factor-β1 (TGF-β1)/phosphorylated small mothers against decapentaplegic 2 and 3 (pSmad2/3)/vascular endothelial growth factor (VEGF) pathway, activated by thrombospondin-1 (TSP-1), which is further regulated by Y type P2
Xi-sheng Xie et al.
Archives of pharmacal research, 33(2), 275-284 (2010-03-03)
The effects of LSKL, the peptide antagonist of thrombospondin-1 (TSP-1), on renal interstitial fibrosis in rats subjected to unilateral ureteral obstruction (UUO) were investigated. Rats were divided randomly into three groups (n = 20 each): UUO group, sham-operation group and
Emanuele Schiavon et al.
The FEBS journal, 277(4), 918-930 (2010-01-12)
Pompilidotoxins (PMTXs, alpha and beta) are small peptides consisting of 13 amino acids purified from the venom of the solitary wasps Anoplius samariensis (alpha-PMTX) and Batozonellus maculifrons (beta-PMTX). They are known to facilitate synaptic transmission in the lobster neuromuscular junction

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