GLP-1(7-37) acetate is an intestinal insulinotropic hormone that augments glucose induced insulin secretion[1].
体内研究 (In Vivo)
GLP-1(7-37) (0.5, 5 or 50 pmol/min/kg) infused during the second hour of a 2-hour 11-mM hyperglycemic clamp produces a dose-related enhancement of the glucose-stimulated increase in plasma insulin concentration and an increased rate of glucose infusion in rats[2]. Infusion of GLP-1(7-37) (5 pmol/min/kg) from 1 hour through 7 hours produces a sustained increase in plasma insulin concentration relative to levels in rats infused with vehicle in rats with maintained glucose concentration at 11 mM[2].
MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Model:
Male Sprague-Dawley rats weighing 300 to 350 g with glucose IV at a variable rate for 7 hours to maintain plasma glucose concentration at 11 mM[2].
Dosage:
5 pmol/min/kg.
Administration:
IV from 1 hour through 7 hours[2].
Result:
Produced a sustained increase in plasma insulin concentration relative to levels in rats infused with vehicle.
Animal Model:
Male Sprague-Dawley rats weighing 300 to 350 g with maintained plasma glucose concentration at 11 mM[2].
Dosage:
0.5, 5 or 50 pmol/min/kg.
Administration:
IV during the second hour of a 2-hour 11-mmol/L hyperglycemic clamp.
Result:
Produced a dose-related enhancement of the glucose-stimulated increase in plasma insulin concentration and an increased rate of glucose infusion.
Room temperature in continental US; may vary elsewhere.
储存方式
Sealed storage, away from moisture and light
Powder
-80deg;C
2 years
-20deg;C
1 year
*In solvent : -80deg;C, 6 months; -20deg;C, 1 month (sealed storage, away from moisture and light)
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 (lt;0)
1.;;Try to dissolve the peptide in water first. 2.;;If water fails, add NH4OH (lt;50 μL). 3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;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.
参考文献
[1]. Sarrauste de Menthiere, C. et al. Structural requirements of the N-terminal region of GLP-1-[7-37]-NH2 for receptor interaction and cAMP production. European journal of medicinal chemistry 39, 473-480, doi:10.1016/j.ejmech.2004.02.002 (2004).
[2]. Hargrove DM, et al. Glucose-dependent action of glucagon-like peptide-1 (7-37) in vivo during short- or long-term administration. Metabolism. 1995 Sep;44(9):1231-7.
