Locustatachykinin I

Cat. No.: HY-P1183 Purity: 99.26%: FAQs
Data Sheet SDS COA Handling Instructions

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Locustatachykinin I is a insect tachykinin-related peptide isolated from Locusta migratoria. Locustatachykinin I exhibits sequence homologies with the vertebrate tachykinins. In Lacanobia, Locustatachykinin I is also a substrate for a deamidase.

For research use only. We do not sell to patients.

Custom Peptide Synthesis

Locustatachykinin I Chemical Structure

CAS No. : 126985-97-5

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1 mg	USD 50	In-stock	Estimated Time of Arrival: December 31
5 mg	USD 150	In-stock	Estimated Time of Arrival: December 31
10 mg	USD 250	In-stock	Estimated Time of Arrival: December 31
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Based on 1 publication(s) in Google Scholar

Other Forms of Locustatachykinin I:

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Biological Activity
Purity & Documentation
References
Customer Review

Description

Molecular Weight

938.04

Formula

C₄₃H₆₃N₁₃O₁₁

CAS No.

126985-97-5

Appearance

Solid

Color

White to off-white

Sequence Shortening

GPSGFYGVR-NH2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Sealed storage, away from moisture and light, under nitrogen

Powder	-80°C	2 years
	-20°C	1 year

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light, under nitrogen)

Solvent & Solubility

In Vitro:

H₂O

Peptide Solubility and Storage Guidelines:

1. Calculate the length of the peptide.

2. Calculate the overall charge of the entire peptide according to the following table:

	Contents	Assign value
Acidic amino acid	Asp (D), Glu (E), and the C-terminal -COOH.	-1
Basic amino acid	Arg (R), Lys (K), His (H), and the N-terminal -NH₂	+1
Neutral amino acid	Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q)	0

3. Recommended solution:

Overall charge of peptide	Details
Negative (<0)	1. Try to dissolve the peptide in water first. 2. If water fails, add NH₄OH (<50 μL). 3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (>0)	1. Try to dissolve the peptide in water first. 2. If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3. If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO.
Zero (=0)	1. Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2. For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration.

Purity & Documentation

Purity: 99.26%

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Data Sheet (257 KB) SDS (252 KB)

COA (249 KB) RP-HPLC (108 KB) MS (192 KB)

Handling Instructions (2659 KB)

References

[1]. L Schoofs, et al. Locustatachykinin I and II, two novel insect neuropeptides with homology to peptides of the vertebrate tachykinin family. FEBS Lett. 1990 Feb 26;261(2):397-401. [Content Brief]

[2]. R Elwyn Isaac, et al. Inactivation of a tachykinin-related peptide: identification of four neuropeptide-degrading enzymes in neuronal membranes of insects from four different orders. Peptides. 2002 Apr;23(4):725-33. [Content Brief]