Avexitide

Alias: Exendin 9-39; Avexitide Free Base; Exendin-(9-39)
Cat No.:V33194 Purity: ≥98%
Avexitide [Exendin-3 (9-39)] is a novel, competitive and peptidic antagonist of glucagon-like peptide-1 (GLP-1) receptor with a Kd of 1.7 nM at cloned human GLP-1 receptors.
Avexitide Chemical Structure CAS No.: 133514-43-9
Product category: GCGR
This product is for research use only, not for human use. We do not sell to patients.
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Product Description

Avexitide [Exendin-3 (9-39)] is a novel, competitive and peptidic antagonist of glucagon-like peptide-1 (GLP-1) receptor with a Kd of 1.7 nM at cloned human GLP-1 receptors. Exendin (9–39) blocks the release of insulin and the synthesis of cAMP that is triggered by GLP-1 (7–36), exendin-3, and exendin-4.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
GLP-1 is involved in the regulation of fasting glucose. Avexitide (also known as Exendin (9-39)) is a particular GLP-1 receptor antagonist that is derived from a shortened version of the GLP-1 agonist exendin-4[1].
ln Vivo
In SUR-1 -/- mice, continuous subcutaneous infusion of Avexitide (Exendin (9-39)) dramatically increases fasting blood glucose levels without compromising glucose tolerance[2].
Animal Protocol
Mice: Avexitide (Exendin (9-39)) or a vehicle (0.9% NaCl, 1% bovine serum albumin) is administered subcutaneously via Alzet miniosmotic pumps for a period of two weeks[2].
References

[1]. GLP-1 receptor antagonist exendin-(9-39) elevates fasting blood glucose levels in congenital owing to inactivating mutations in the ATP-sensitive K+ channel. Diabetes. 2012 Oct;61(10):2585-91.

[2]. Exendin-(9-39) corrects fasting hypoglycemia in SUR-1-/- mice by lowering cAMP in pancreatic beta-cells and inhibiting secretion. J Biol Chem. 2008 Sep 19;283(38):25786-93.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C₁₄₉H₂₃₄N₄₀O₄₇S
Molecular Weight
3369.76
Exact Mass
3367.69
Elemental Analysis
C, 53.11; H, 7.00; N, 16.63; O, 22.31; S, 0.95
CAS #
133514-43-9
Related CAS #
2051593-46-3 (acetate); 133514-43-9
Sequence
Asp-Leu-Ser-Lys-Gln-Met-Glu-Glu-Glu-Ala-Val-Arg-Leu-Phe-Ile-Glu-Trp-Leu-Lys-Asn-Gly-Gly-Pro-Ser-Ser-Gly-Ala-Pro-Pro-Pro-Ser-NH2
SequenceShortening
DLSKQMEEEAVRLFIEWLKNGGPSSGAPPPS-NH2
Appearance
Solid powder
SMILES
CC[C@H](C)[C@@H](C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CC1=CNC2=CC=CC=C21)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(=O)N)C(=O)NCC(=O)NCC(=O)N3CCC[C@H]3C(=O)N[C@@H](CO)C(=O)N[C@@H](CO)C(=O)NCC(=O)N[C@@H](C)C(=O)N4CCC[C@H]4C(=O)N5CCC[C@H]5C(=O)N6CCC[C@H]6C(=O)N[C@@H](CO)C(=O)N)NC(=O)[C@H](CC7=CC=CC=C7)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CCCNC(=N)N)NC(=O)[C@H](C(C)C)NC(=O)[C@H](C)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCSC)NC(=O)[C@H](CCC(=O)N)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CO)NC(=O)[C@H](CC(C)C)NC(=O)[C@H](CC(=O)O)N
InChi Key
WSEVKKHALHSUMB-MVNVRWBSSA-N
InChi Code
InChI=1S/C149H234N40O47S/c1-14-78(10)120(185-139(227)98(62-81-29-16-15-17-30-81)177-136(224)97(61-76(6)7)175-129(217)88(35-24-53-158-149(156)157)172-144(232)119(77(8)9)184-122(210)79(11)164-126(214)90(41-46-114(199)200)168-131(219)91(42-47-115(201)202)169-132(220)92(43-48-116(203)204)170-134(222)94(50-58-237-13)171-130(218)89(40-45-109(153)194)167-127(215)86(33-20-22-51-150)166-140(228)103(72-192)182-137(225)95(59-74(2)3)174-123(211)84(152)64-118(207)208)145(233)173-93(44-49-117(205)206)133(221)178-99(63-82-66-159-85-32-19-18-31-83(82)85)138(226)176-96(60-75(4)5)135(223)165-87(34-21-23-52-151)128(216)179-100(65-110(154)195)124(212)161-67-111(196)160-69-113(198)186-54-25-36-105(186)142(230)183-104(73-193)141(229)181-102(71-191)125(213)162-68-112(197)163-80(12)146(234)188-56-27-38-107(188)148(236)189-57-28-39-108(189)147(235)187-55-26-37-106(187)143(231)180-101(70-190)121(155)209/h15-19,29-32,66,74-80,84,86-108,119-120,159,190-193H,14,20-28,33-65,67-73,150-152H2,1-13H3,(H2,153,194)(H2,154,195)(H2,155,209)(H,160,196)(H,161,212)(H,162,213)(H,163,197)(H,164,214)(H,165,223)(H,166,228)(H,167,215)(H,168,219)(H,169,220)(H,170,222)(H,171,218)(H,172,232)(H,173,233)(H,174,211)(H,175,217)(H,176,226)(H,177,224)(H,178,221)(H,179,216)(H,180,231)(H,181,229)(H,182,225)(H,183,230)(H,184,210)(H,185,227)(H,199,200)(H,201,202)(H,203,204)(H,205,206)(H,207,208)(H4,156,157,158)/t78-,79-,80-,84-,86-,87-,88-,89-,90-,91-,92-,93-,94-,95-,96-,97-,98-,99-,100-,101-,102-,103-,104-,105-,106-,107-,108-,119-,120-/m0/s1
Chemical Name
(4S)-4-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-5-amino-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-3-carboxypropanoyl]amino]-4-methylpentanoyl]amino]-3-hydroxypropanoyl]amino]hexanoyl]amino]-5-oxopentanoyl]amino]-4-methylsulfanylbutanoyl]amino]-4-carboxybutanoyl]amino]-4-carboxybutanoyl]amino]-5-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S,3S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-6-amino-1-[[(2S)-4-amino-1-[[2-[[2-[(2S)-2-[[(2S)-1-[[(2S)-1-[[2-[[(2S)-1-[(2S)-2-[(2S)-2-[(2S)-2-[[(2S)-1-amino-3-hydroxy-1-oxopropan-2-yl]carbamoyl]pyrrolidine-1-carbonyl]pyrrolidine-1-carbonyl]pyrrolidin-1-yl]-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-2-oxoethyl]amino]-2-oxoethyl]amino]-1,4-dioxobutan-2-yl]amino]-1-oxohexan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-3-(1H-indol-3-yl)-1-oxopropan-2-yl]amino]-4-carboxy-1-oxobutan-2-yl]amino]-3-methyl-1-oxopentan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-3-methyl-1-oxobutan-2-yl]amino]-1-oxopropan-2-yl]amino]-5-oxopentanoic acid
Synonyms
Exendin 9-39; Avexitide Free Base; Exendin-(9-39)
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
H2O: ~50 mg/mL (~14.8 mM)
Solubility (In Vivo)
Solubility in Formulation 1: 100 mg/mL (29.68 mM) in PBS (add these co-solvents sequentially from left to right, and one by one), clear solution; with sonication.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 0.2968 mL 1.4838 mL 2.9676 mL
5 mM 0.0594 mL 0.2968 mL 0.5935 mL
10 mM 0.0297 mL 0.1484 mL 0.2968 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT03373435 Completed Drug: exendin 9-39
Other: Placebo
Postbariatric Hypoglycemia Eiger BioPharmaceuticals March 19, 2018 Phase 2
NCT02971631 Completed Other: Exendin 9-39
Other: Placebo
Gastric Cancer
Dumping Syndrome
Cambridge University Hospitals
NHS Foundation Trust
August 10, 2017 Not Applicable
NCT01795144 Completed Drug: GLP-1
Drug: Exendin 9-39
Monogenic Diabetes University of Chicago January 2014 Phase 1
NCT02336659 Completed Drug: exendin 9-39
Drug: sitagliptin
Severe Obesity Hvidovre University Hospital April 2014 Not Applicable
NCT02771574 Completed Drug: Lyo avexitide
Drug: Liq avexitide
Post Bariatric Hypoglycemia Tracey McLaughlin May 2016 Phase 2
Biological Data
  • Effect of exendin-(9-39) on fasting blood glucose. Diabetes . 2012 Oct;61(10):2585-91.
  • Effect of exendin-(9-39) on fasting plasma insulin. Diabetes . 2012 Oct;61(10):2585-91.
  • Effect of exendin-(9-39) on insulin-to-glucose ratio. Diabetes . 2012 Oct;61(10):2585-91.
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