178270

Apamin, Bee Venom

Polypeptide neurotoxin known to pass through the blood-brain barrier.

• Synonym(e): Apamin, Bee Venom, CNCKAPETALCARRCQQH-NH₂
• Empirische Formel (Hill-System): C₇₉H₁₃₁N₃₁O₂₄S₄
• CAS-Nummer: 24345-16-2
• Molekulargewicht: 2027.34
• MDL-Nummer: MFCD00167944
• UNSPSC-Code: 12352200
• NACRES: NA.77

Eigenschaften

• Qualitätsniveau: 100
• Assay: ≥98% (HPLC)
• Form: solid
• Hersteller/Markenname: Calbiochem^®
• Lagerbedingungen: OK to freeze; desiccated (hygroscopic)
• Farbe: white, with dark tan cast
• Löslichkeit: 5% acetic acid: 2 mg/mL
• Versandbedingung: ambient
• Lagertemp.: −20°C
• InChI: 1S/C79H131N31O24S4/c1-35(2)26-49-70(127)107-51-31-136-135-30-41(81)63(120)105-50(28-57(84)114)71(128)108-53(73(130)99-42(12-7-8-22-80)64(121)96-38(5)77(134)110-25-11-15-54(110)75(132)102-47(18-21-58(115)116)69(126)109-59(39(6)111)76(133)95-37(4)62(119)104-49)33-138-137-32-52(106-66(123)44(14-10-24-92-79(88)89)98-65(122)43(13-9-23-91-78(86)87)97-61(118)36(3)94-72(51)129)74(131)101-45(16-19-55(82)112)67(124)100-46(17-20-56(83)113)68(125)103-48(60(85)117)27-40-29-90-34-93-40/h29,34-39,41-54,59,111H,7-28,30-33,80-81H2,1-6H3,(H2,82,112)(H2,83,113)(H2,84,114)(H2,85,117)(H,90,93)(H,94,129)(H,95,133)(H,96,121)(H,97,118)(H,98,122)(H,99,130)(H,100,124)(H,101,131)(H,102,132)(H,103,125)(H,104,119)(H,105,120)(H,106,123)(H,107,127)(H,108,128)(H,109,126)(H,115,116)(H4,86,87,91)(H4,88,89,92)
• InChIKey: YVIIHEKJCKCXOB-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

A polypeptide neurotoxin known to pass through the blood-brain barrier. Blocks the AHP-type Ca²⁺-activated K⁺ channel; however, it does not block the TEA and voltage-sensitive Ca²⁺-activated K⁺ channel. Known to induce the secretion of prolactin in a dose-dependent manner.

Polypeptide neurotoxin known to pass through the blood-brain barrier. Blocks the AHP-type Ca²⁺-activated K⁺ channel; does not block the TEA and voltage-sensitive Ca²⁺-activated K⁺ channel. Reported to induce neurodegeneration of Purkinje cells in rat brain. Known to induce the secretion of prolactin in a dose-dependent manner.

Biochem./physiol. Wirkung

Cell permeable: no

Primary Target
AHP-type Ca2+-activated K+ channel

Product does not compete with ATP.

Reversible: no

Warnhinweis

Toxicity: Harmful (C)

Sequenz

H-Cys¹-Asn-Cys³-Lys-Ala-Pro-Glu-Thr-Ala-Leu-Cys¹¹-Ala-Arg-Arg-Cys¹⁵-Gln-Gln-His-NH₂ (disulfide bonds: 1 → 11; 3 → 15)

Rekonstituierung

Following reconstitution, aliquot and freeze (-20°C). Acetic acid stock solutions are stable for up to 3 days at -20°C.

Sonstige Hinweise

Mourre, C., et al. 1997. Brain Res. 778, 405.
Silva, E.G., et al. 1994. Br. J. Pharmacol. 113, 1022.
Wang, X., et al. 1994. Brain Res. 662, 83.

Rechtliche Hinweise

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable