L1915
Lq2
>98% (HPLC), recombinant, expressed in E. coli, lyophilized powder
Synonym(s):
ChTx2
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About This Item
UNSPSC Code:
12352200
MDL number:
recombinant
expressed in E. coli
assay
>98% (HPLC)
form
lyophilized powder
mol wt
4359 Da
storage temp.
−20°C
Biochem/physiol Actions
ROMK1 inward rectifier potassium channel blocker; also blocks single K(Ca) channels in planar lipid bilayer (rat muscle); Lq2 action is on the extracellular side of the pore.
Storage Class
13 - Non 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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K Lucchesi et al.
The Journal of membrane biology, 109(3), 269-281 (1989-08-01)
Two charybdotoxin peptides were purified from venom of the Israeli scorpion, Leiurus quinquestriatus hebraeus. Microsequencing of the most abundant toxin, ChTX-Lq1, revealed identity with the 37-residue peptide previously sequenced by Gimenez-Gallego et al. [Gimenez-Gallego, G., et al., Proc. Natl. Acad.
Z Lu et al.
Biochemistry, 36(23), 6936-6940 (1997-06-10)
We have purified a protein inhibitor of an inward-rectifier K+ channel, ROMK1, from the venom of the scorpion Leiurus quinquestriatus var. hebraeus. The inhibitor is Lq2, a previously discovered blocker of voltage- and Ca2+-activated K+ channels. Mutations were made on