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Substance Name: Conotoxin GI
RN: 76862-65-2
InChIKey: CSUQNJQRLCOOSR-NAKBKFBQSA-N

Note

  • Highly toxic; from venom of marine snail Conus geographus.

Classification Codes

  • Drug / Therapeutic Agent
  • Natural Product

Molecular Formula

  • C55-H80-N20-O18-S4

Molecular Weight

  • 1437.62
 
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Names and Synonyms

Name of Substance

  • Conotoxin GI

Synonyms

  • alpha-Conotoxin G I
  • alpha-Conotoxin G I (reduced), cyclic (2-7),(3-13)-bis(disulfide)
  • Myotoxin from Conus geographus venom

Systematic Names

  • Conotoxin G I
  • Conotoxin GI

Registry Numbers

CAS Registry Number

  • 76862-65-2

Other Registry Numbers

  • 148046-71-3
  • 87105-40-6

System Generated Number

  • 0076862652

Structure Descriptors

InChI

1S/C55H80N20O18S4/c1-25-44(83)72-36-21-95-97-22-37(73-45(84)29(56)9-10-42(80)81)52(91)74-38(51(90)69-33(16-40(57)78)54(93)75-12-4-8-39(75)53(92)65-25)23-96-94-20-35(43(58)82)71-50(89)34(19-76)70-48(87)31(14-26-5-2-6-28(77)13-26)67-49(88)32(15-27-17-61-24-64-27)68-47(86)30(7-3-11-62-55(59)60)66-41(79)18-63-46(36)85/h2,5-6,13,17,24-25,29-39,76-77H,3-4,7-12,14-16,18-23,56H2,1H3,(H2,57,78)(H2,58,82)(H,61,64)(H,63,85)(H,65,92)(H,66,79)(H,67,88)(H,68,86)(H,69,90)(H,70,87)(H,71,89)(H,72,83)(H,73,84)(H,74,91)(H,80,81)(H4,59,60,62)/t25-,29-,30-,31-,32-,33-,34-,35-,36-,37-,38-,39-/m0/s1

InChIKey

CSUQNJQRLCOOSR-NAKBKFBQSA-N

Smiles

C(CC[C@@H]1NC(=O)CNC(=O)[C@H]2NC(=O)[C@@H](NC(=O)[C@H]3N(CCC3)C([C@H](CC(N)=O)NC([C@H](CSSC[C@@H](C(=O)N)NC([C@@H](NC(=O)[C@@H](NC(=O)[C@H](Cc3cnc[nH]3)NC1=O)Cc1cc(ccc1)O)CO)=O)NC([C@H](CSSC2)NC([C@H](CCC(=O)O)N)=O)=O)=O)=O)C)NC(=N)N

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intraperitoneal 12ug/kg (0.012mg/kg) LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES

PERIPHERAL NERVE AND SENSATION: FLACCID PARALYSIS WITHOUT ANESTHESIA (USUALLY NEUROMUSCULAR BLOCKAGE)
Archives of Biochemistry and Biophysics. Vol. 190, Pg. 539, 1978.