1. 進入ncbi的basic blast research,將program設成blastp,再將sequence paste上去即可得最高score為sp|P01444|CX3_NAJAT CYTOTOXIN 3 PRECURSOR (CARDIOTOXIN A...)但是score只有93%所以判斷此為一new toxin(score為100%才是old toxin)

2. PIR:H3NJ2K C;Species: Naja naja kaouthia, Naja naja siamensis (monocled cobra)

PIR:H3NJ2F C;Species: Naja naja atra (Chinese cobra)

PIR:JC4621 C;Species: Naja naja atra (Chinese cobra)

PIR:JS0028 C;Species: Naja naja kaouthia, Naja naja siamensis (monocled cobra)

PIR:H3NJ2R C;Species: Naja naja oxiana (Asian cobra, Oxus cobra)

PIR:H3NJ5F C;Species: Naja naja atra (Chinese cobra)

PIR:H3NJ2I C;Species: Naja naja

PIR:H3NJ3F C;Species: Naja naja atra (Chinese cobra)

PIR:A44335 C;Species: Naja naja

PIR:JK0222 C;Species: Naja naja kaouthia, Naja naja siamensis (monocled cobra)

　

3.