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. Author manuscript; available in PMC: 2015 Jan 7.
Published in final edited form as: Toxicon. 2013 Aug 29;74:215–224. doi: 10.1016/j.toxicon.2013.08.054

Table 1.

Examples of amidated conotoxins. Conceptual translation product of cDNA encoding conotoxins and the sequences of the corresponding mature conotoxins containing posttranslational modifications in addition to amidation. (γ = gamma-carboxy glutamate; O = 4-hydroxy proline; w = D-tryptophan).

Conotoxin Primary translation product Mature conotoxin
GI MFTVFLLVVLATTVVSFPSERASDGRDDTAKDEGSDMEKLV
EKKECCNPACGRHYSCGR
ECCNPACGRHYSC(NH2)a
AuIB MFTVFLLVVLATTVVSFTSDRASDGRKDAASGLIALTMKGCCSYPPCFATNPDCGRRR GCCSYPPCFATNPDC(NH2)b
SrIA MGMRMMFTVFLLVVLATTVVSFTSDSAFDSRNVAANDKVSD
MIALTARRTCCSRPTCRMEYPELCGGRR
RTCCSROTCRMγYPγLCG(NH2)c
GIIIA MSKLGVLLTICLLLFPLTALPMDGDEPANRPVERMQDNISS
EQYPLFEKRRDCCTPPKKCKDRQCKPQRCCAGR
RDCCTOOKKCKDRQCKOQRCCA(NH2)d
Conantokin G MHLYTYLYLLVPLVTFHLILGTGTLDDGGALTERRSADATA
LKAEPVLLQKSAARSTDDNGKDRLTQMKRILKQRGNKAR
GEEEVQENQELIREKSNGKR
GEγγVQγNQγLIRγKSN(NH2)e
BuIIIA MMSKLGVLLTICLLLFPLFALPQDGDQPADRPAERMQDDISSEQNSLLEKR
VTDRCCKGKRECGRWCRDHSRCCGRR
VTDRCCKGKRECGRWCRDHSRCC(NH2)f
Contryphan M MGKLTILVLVAAVLLSTQVMVQGDRDQPADRNAVPRDDNPGRARRKRMKVL
NESECPWHPWCG
NγSγCPwHPWC(NH2)g
Gm5.2 MRCLPVFVILLLLIASAPSVDAQPKTKDDVPLAPLHDNIRS
TLQTLRKKVCCRPVQDCCSGK
VCCRPVQDCCS(NH2)h
TxIXA MHLSLARSAVLMLLLLFALGNFVVVQSGQITRDVDNGQLTDNRRNLQSKWKPVSLYMSRR
GCNNSCQEHSDCESHCICTFRGCGAVNG
GCNNSCQγHSDCγSHCICTFRGCGAVN(NH2)i
TxX MSGHTSVSFLLLSIVALGMVATVIC
SCDSEFSSEFCERPEESCSCSTHTCCHWARRDQCMKPQRCISAQKGN
GRRRLIHMQ
SCDSγFSSγFCγRPγγSCSCSTHTCCHWARRDQCMKPQRCISAQKGN(NH2)j