Gap19

ChemicalBook > CAS DataBase List > Gap19

Product Name: Gap19
CAS No.: 1507930-57-5
Chemical Name: Gap19
Synonyms: Gap19;KQIEIKKFK;L-Lysine, L-lysyl-L-glutaminyl-L-isoleucyl-L-α-glutamyl-L-isoleucyl-L-lysyl-L-lysyl-L-phenylalanyl-;myocardial,Gap19,cytoplasmic,Cx40/pannexin-1,inhibit,Gap Junction Protein,C-terminus,Gap 19,hemichannel,Inhibitor,loop,Gap-19,Cx43,channels,connexin
CBNumber: CB94632530
Molecular Formula: C55H96N14O13
Formula Weight: 1161.46
MOL File: 1507930-57-5.mol

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Gap19 Property

Boiling point:: 1511.4±65.0 °C(Predicted)
Density: 1.212±0.06 g/cm3(Predicted)
storage temp.: -20°C
solubility: ≥58.07 mg/mL in H2O; insoluble in EtOH; ≥26.55 mg/mL in DMSO
form: powder
pka: 3.30±0.10(Predicted)
color: white to off-white
Water Solubility: Soluble to 2 mg/ml in water

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: SML1426
Product name: Gap19 trifluoroacetate salt
Purity: ≥95% (HPLC)
Packaging: 1MG
Price: $211
Updated: 2023/06/20

Tocris

Product number: 5353
Product name: Gap19
Packaging: 1
Price: $227
Updated: 2021/12/16

Usbiological

Product number: 255359
Product name: Gap19
Packaging: 1mg
Price: $475
Updated: 2021/12/16

TRC

Product number: G245200
Product name: Gap19
Packaging: 5mg
Price: $690
Updated: 2021/12/16

ApexBio Technology

Product number: B4919
Product name: Gap19
Packaging: 1mg
Price: $208
Updated: 2021/12/16

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Gap19 Chemical Properties,Usage,Production

Uses

Gap19 is a short peptide that inhibits hemichannels specifically for connexin-43 (Cx43), a cardiac connexin involved with gap junction formation. Gap junctions facilitate the exchange of ions and metabolites between cytoplasm and extracellular milieu. Reagents that inhibit hemichannels may have cardioprotective properties.

Uses

Gap19 trifluoroacetate salt has been used to inhibit Ca²⁺/calmodulin (CaM) gating response of connexin 43 (Cx43) gap junctions.

Biological Activity

gap19 is a selective inhibitor of connexin 43 (cx43) hemichannel with ic50 value of ~ 50 μm [1].gap19 is identical to a short sequence present on the intracellular cytoplasmic loop domain of cx43 hemichannel. it strongly inhibits cx43 hemichannels which are involved in neuroglial interactions that participate to the control of neuronal activity and survival [2].in cultured cortical astrocytes triggered by glutamate, pre-incubation of gap19 for 30 min inhibited atp release with ic50 values of 142 μm. at concentrations ranging from 0 μm to 688 μm, gap19 inhibited astroglial cx43 hemichannels in a dose-dependent manner, without affecting gap junction channels [2].in a mouse model of middle cerebral artery occlusion, gap19 (300 μg/kg, i.c.v.) significantly alleviated infarct volume, neuronal cell damage, as well as neurological deficits after ischemia. moreover, post-treatment with tat-gap19 at the dose of 25 mg/kg still provided neuroprotection when it was administered intraperitoneally at 4 h after reperfusion [3].[1]. iyyathurai j, d'hondt c, wang n, et al. peptides and peptide-derived molecules targeting the intracellular domains of cx43: gap junctions versus hemichannels. neuropharmacology, 2013, 75: 491-505.[2]. abudara v, bechberger j, freitas-andrade m, et al. the connexin43 mimetic peptide gap19 inhibits hemichannels without altering gap junctional communication in astrocytes. frontiers in cellular neuroscience, 2014, 8: 306.[3]. chen b, yang l, chen j, et al. inhibition of connexin43 hemichannels with gap19 protects cerebral ischemia/reperfusion injury via the jak2/stat3 pathway in mice. brain research bulletin, 2019, 146: 124-135.

Biochem/physiol Actions

Gap19, nonapeptide from the cytoplasmic loop of Connexin-43, is a selective blocker of connexin 43 (Cx43) hemichannel that does not block GJ or Cx40/Panx-1 channels in cardiomyocytes and astrocytes. Gap19 prevents Cx43 hemichannel opening and protect against myocardial ischemia/reperfusion injury.

storage

Store at -20°C

Gap19 Preparation Products And Raw materials

Raw materials

Preparation Products

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Gap19 Suppliers

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1507930-57-5, Gap19Related Search:

Gap19

L-Lysine, L-lysyl-L-glutaminyl-L-isoleucyl-L-α-glutamyl-L-isoleucyl-L-lysyl-L-lysyl-L-phenylalanyl-

myocardial,Gap19,cytoplasmic,Cx40/pannexin-1,inhibit,Gap Junction Protein,C-terminus,Gap 19,hemichannel,Inhibitor,loop,Gap-19,Cx43,channels,connexin

KQIEIKKFK

1507930-57-5

C55H96N14O13