>sp|P83997|TX16_PHONI U19-ctenitoxin-Pn1a OS=Phoneutria nigriventer OX=6918 PE=1 SV=1 QWIPGQSCTNADCGEGQCCTGGSYNRHCQSLSDDGKPCQRPNKYDEYKFGCPCKEGLMCQ VINYCQKK