Ashlyn

Welcome to Ashlyn's page. Enjoy your stay.

Notes 1/12:

Protocol: -Flash freeze organs after harvest because RNA is unstable and we do not want it to degrade. -100 micro grams of RNA from 0.1g tissue. RNA isolated from just a kit-- think about sampling problem. Did it come from the right part of the organ? How do we know it's not connective tissue? Dr. C's best may not have been good enough... -You don't sequence RNA, you sequence cDNA! mRNA template --> transcribed to more stable version of cDNA. -Beads with oligonucleotide complementary to part of mRNA. Remove beads, now you just have mRNA. Use Reverse Transcriptase to transcribe cDNA. -RNA FRAGMENTATION: You get very short reads (75bbp). What do you gain by fractionating the mRNA into short fragments randomly? --Now we get a lot more reads (more edges to read from, roughly the same size). -BUT how do you prime every mRNA individually? -generate every possible heximer (6bp), attach it to code (A, B, C... for each snake "xxx") and attach both to primer.

Good DNA samples. Amplify. Cut out at 500bp and reamplify. Reamplification is also at 500bp = really good cDNA library.

Resources for snake intestine gene search: