Exercise 1

Search one of the below sequences using either the EMBL nucleotide BLAST and FASTA webservers or the NCBI BLAST webserver.

• What is the species distributions and possible function for your sequence?
• What is the function of your sequence?
• Is it related to any other type of RNA?

>A

AACAAAAUAAUUUACAUUCCAAGGACCGGUAUUAUUGUAGGGGAUUUGUGACUUUCAAGGCAACGUCCUCUCUACAACCGAG

UUCGAGAAUAAGUACAAAUGGCUCUUUUUGUUAUUCGAAAGCUUACAAGUUCUGGUAUAUUCUAUAUACUCACUUAUUACUU

UCAAGUACUUCACACGGGCCUGACAUCU

>B

UAAAUAUACAACACCCAGUAUUUUUGGCUGCCCGUGUCUUUCUCUACCACGGGUAGUCUCUCUAAGCUGGCAGAUAGAUGUU

UAUUGAACCGCUUAAGUUCCGUUGUGAAGUUUUCGUCUUUCAGGCUGUAUUUCAUAACACUACUGUAGUUCACACAUAC

>C

UCGGCCUGUGCCACUCAAACUGUGGGGGCACUUUCUGUUCUAGGUAGGAAAGUGCCGCCAUUUUUUGAGUGUCCCCGGCUGA

>D

UCCUUAUCCCGUUCGCAAUGGCACUGCAUGAAUUCACGGCUAUGCAUAACGACAGACCGCGGAUCAUACGGUACCAUAGCGG

ACGGUGAUGAGGUUAAU

>E

AUUGCAAUUAACUAAAAUCCCUAUCAGGGAUUGAAAC

>F

GGUCACGAGUGCCAGCGCUAAACCCCGGUUUGCUGGCCGGCAACCCUCCAUUCGCGGUGGGGUGCCCCGGGUGACGACCCGG

CCGGUCCGGAAUGGAUGCGGCAAGCGCGGAUC

>G

GUAGAUGCUCAUUCCAUCUCUUAUGUUCGCCUUCGUGCCUCAUAAACUCCGGAAUGAUGCAGAGCCGUUCUUACGGUGCUUA

UCGUCCACUGACAGAUGUCGCAUUUAUGCCUCAUCAAACACCAUGGACAUUACGUUGAGUGAAGCACCCAAUUUGUUGUCAA

ACAGACCUGUUUUAACGCCUGCCCUGAUuucaGCGCAGGCGUUUUUUU

>H

GAUACAUAGGAACCUCCUCACAAAGGAUUCUAUGGACAGUCGAUGCAGGGAGGAGAGAACUCCCUGCAUCGGCGAUUUU