Sequences Pancreatic Ribonuclease

Question

[Efejir]

I want to plot a phylogenic tree of some organisms with their pancreatic ribonuclease sequence, but I can't seem to find one single database that has any record for it. Am I missing something?

Attached to this is a link to the weblem I'm struggling with.

For the coelacanth (Latimeria chalumnae), the great white shark (Carcharodon carcharias), skipjack tuna (Katsuwonus pelamis), sea lamprey (Petromyzon marinus), frog (Rana pipens), and Nile crocodile (Crocodylus niloticus), using sequences of cytochromes c and pancreatic ribonucleases, derive evolutionary trees of these species

Efejiro Ashano, Nigeria

[Emily]

Is this homework?

[Efejir]

Yes it is. Intend to use BioEdit and MEGA, found CO I peptides to run it with, but can find RNase A anywhere for those organism. Just wanted to be sure they weren't available before I red flagged them.