5.04480

Conantokin G

• Synonym(s): Conantokin G, Gly-Glu-γ-CarboxyGlu-γ-CarboxyGlu-Leu-Gln-γ-CarboxyGlu-Asn-Gln-γ-CarboxyGlu-Leu-Ile-Arg-γ-CarboxyGlu-Lys-Ser-Asn-NH2
• CAS Number: 93438-65-4
• MDL number: MFCD00214606
• UNSPSC Code: 12352200

Properties

• assay: ≥95% (HPLC)
• Quality Level: 100
• form: powder
• potency: 0.8 μM K_i
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze; protect from light
• color: white
• solubility: water: 1 mg/mL
• storage temp.: −20°C
• InChI: 1S/C88H138N26O44/c1-7-34(6)61(77(138)103-41(12-10-20-98-88(96)97)63(124)107-48(23-35(78(139)140)79(141)142)69(130)100-40(11-8-9-19-89)64(125)113-54(31-115)76(137)104-45(62(95)123)28-57(93)118)114-75(136)47(22-33(4)5)106-70(131)49(24-36(80(143)144)81(145)146)109-67(128)44(14-17-56(92)117)102-74(135)53(29-58(94)119)112-73(134)51(26-38(84(151)152)85(153)154)110-66(127)43(13-16-55(91)116)101-68(129)46(21-32(2)3)105-71(132)52(27-39(86(155)156)87(157)158)111-72(133)50(25-37(82(147)148)83(149)150)108-65(126)42(15-18-60(121)122)99-59(120)30-90/h32-54,61,115H,7-31,89-90H2,1-6H3,(H2,91,116)(H2,92,117)(H2,93,118)(H2,94,119)(H2,95,123)(H,99,120)(H,100,130)(H,101,129)(H,102,135)(H,103,138)(H,104,137)(H,105,132)(H,106,131)(H,107,124)(H,108,126)(H,109,128)(H,110,127)(H,111,133)(H,112,134)(H,113,125)(H,114,136)(H,121,122)(H,139,140)(H,141,142)(H,143,144)(H,145,146)(H,147,148)(H,149,150)(H,151,152)(H,153,154)(H,155,156)(H,157,158)(H4,96,97,98)
• InChI key: HTBKFGWATIYCSF-UHFFFAOYSA-N

Description

General description

The most selective and potent non-competitive antagonist among the members of the conantokin peptide family for NR2B-containing NMDAR channels (K_i = 0.8 µM with close to 100% inhibition of NR1/NR2B mediated current). Widely used for studies related to NMDAR neurotransmissions in both peripheral and center nervous systems.

Biochem/physiol Actions

Primary Target
NMDA receptors

Packaging

Yes

Warning

Toxicity: Standard Handling (A)

Sequence

Gly-Glu-γ-CarboxyGlu-γ-CarboxyGlu-Leu-Gln-γ-CarboxyGlu-Asn-Gln-γ-CarboxyGlu-Leu-Ile-Arg-γ-CarboxyGlu-Lys-Ser-Asn-NH₂

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

Other Notes

Sheng, Z., et al. 2007. Neuropharmacology.53, 145.
Sheng, Z., et al. 2009. Neuropharmacology.57, 127.
Zhou, L., et al. 1996. J. Neurochemistry.66, 620.
Hammerland, L., et al. 1992. Eur. J. Pharmacol.226, 239.

Mena, E., et al. 1990. Neurosci Lett.118, 241.
Donevan, D., et al. 2000. Mol Pharmacol.58, 614.

Legal Information

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable