Yes it is a new toxin
accroding to the BLASTP results:
it is like the "CARDIOTOXIN, Cardiotoxin iii ".
they are 93% similarity

Accession: pdb|CARDIOTOXIN|2CRS__  Cardiotoxin iii (NMR, 13 structures)
         pdb|CARDIOTOXIN|2CRS__  Cardiotoxin iii (NMR, 13 structures)
 
Length = 60
Score = 329 (158.8 bits)
Expect = 1.5e-44
P = 1.5e-44
Identities = 56/60 (93%)
Positives = 60/60 (100%)
Query:     1 LKCNKLVPLFYKTCPAGKNICYKMFMVATPKLPVKRGCIDVCPKSSLLVRYVCCNTDKCN 60
             LKCNKLVPLFYKTCPAGKN+CYKMFMVATPK+PVKRGCIDVCPKSSLLV+YVCCNTD+CN
Subject:   1 LKCNKLVPLFYKTCPAGKNLCYKMFMVATPKVPVKRGCIDVCPKSSLLVKYVCCNTDRCN 60
 
 

  Accession: pdb|CARDIOTOXIN|2CRT__ Cardiotoxin iii (NMR, minimized average
                                  structure)

  pdb|CARDIOTOXIN|2CRT__ Cardiotoxin iii (NMR, minimized average structure)

Length = 60

Score = 329 (158.8 bits)
Expect = 1.5e-44
P = 1.5e-44
Identities = 56/60 (93%)
Positives = 60/60 (100%)

Query:     1 LKCNKLVPLFYKTCPAGKNICYKMFMVATPKLPVKRGCIDVCPKSSLLVRYVCCNTDKCN 60
             LKCNKLVPLFYKTCPAGKN+CYKMFMVATPK+PVKRGCIDVCPKSSLLV+YVCCNTD+CN
Subject:   1 LKCNKLVPLFYKTCPAGKNLCYKMFMVATPKVPVKRGCIDVCPKSSLLVKYVCCNTDRCN 60
 
 

   Accession: pdb|CARDIOTOXIN|1CRE__ Cardiotoxin ii (NMR, minimized average
                                  structure)

  pdb|CARDIOTOXIN|1CRE__ Cardiotoxin ii (NMR, minimized average structure)

Length = 60

Score = 297 (143.3 bits)
Expect = 6.5e-40
P = 6.5e-40
Identities = 50/60 (83%)
Positives = 56/60 (93%)

Query:     1 LKCNKLVPLFYKTCPAGKNICYKMFMVATPKLPVKRGCIDVCPKSSLLVRYVCCNTDKCN 60
             LKCNKLVPLFYKTCPAGKN+CYKMFMV+   +PVKRGCIDVCPK+S LV+YVCCNTD+CN
Subject:   1 LKCNKLVPLFYKTCPAGKNLCYKMFMVSNLTVPVKRGCIDVCPKNSALVKYVCCNTDRCN 60
 
 

    Accession: pdb|CARDIOTOXIN|1CRF__ Cardiotoxin ii (NMR, 12 structures)

         pdb|CARDIOTOXIN|1CRF__ Cardiotoxin ii (NMR, 12 structures)

Length = 60

Score = 297 (143.3 bits)
Expect = 6.5e-40
P = 6.5e-40
Identities = 50/60 (83%)
Positives = 56/60 (93%)

Query:     1 LKCNKLVPLFYKTCPAGKNICYKMFMVATPKLPVKRGCIDVCPKSSLLVRYVCCNTDKCN 60
             LKCNKLVPLFYKTCPAGKN+CYKMFMV+   +PVKRGCIDVCPK+S LV+YVCCNTD+CN
Subject:   1 LKCNKLVPLFYKTCPAGKNLCYKMFMVSNLTVPVKRGCIDVCPKNSALVKYVCCNTDRCN 60