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Sequence Alignment for Phylogenetic Analysis

1,167 bytes added, 13:07, 18 April 2019
Added info about FASTA code
== Locate Sequences and Generate FASTA File ==
=== Generating a FASTA File===
* FASTA format is described [https://zhanglab.ccmb.med.umich.edu/FASTA/ here], and [https://en.wikipedia.org/wiki/FASTA_format here] you need each sequence to start with a >SEQUENCENAME followed by a return and then the sequence, in this case the protein sequence. An example of a FASTA file would be:
 
<code>
>SEQUENCE_1
 
MTEITAAMVKELRESTGAGMMDCKNALSETNGDFDKAVQLLREKGLGKAAKKADRLAAEG
 
LVSVKVSDDFTIAAMRPSYLSYEDLDMTFVENEYKALVAELEKENEERRRLKDPNKPEHK
 
IPQFASRKQLSDAILKEAEEKIKEELKAQGKPEKIWDNIIPGKMNSFIADNSQLDSKLTL
 
MGQFYVMDDKKTVEQVIAEKEKEFGGKIKIVEFICFEVGEGLEKKTEDFAAEVAAQL
 
>SEQUENCE_2
 
SATVSEINSETDFVAKNDQFIALTKDTTAHIQSNSLQSVEELHSSTINGVKFEEYLKSQI
 
ATIGENLVVRRFATLKAGANGVVNGYIHTNGRVGVVIAAACDSAEVASKSRDLLRQICMH
</code>
 
* Save sequences in notepad, [https://notepad-plus-plus.org/ notepad++] or [https://www.sublimetext.com/ sublime] (not Word) as a <FILENAME>.fasta file.
* Sequence names cannot have spaces. Generally its better to name it as mm_Gdf15-NM_004864.4 where mm indicates mouse, Gdf15 is the gene name and NM indicates a [https://www.ncbi.nlm.nih.gov/refseq/ RefSeq mRNA]. If there are multiple mRNA's for the gene, name them
== Create Multiple Sequence Alignment using CLUSTAL Omega ==
* Generate phlogenetic trees with [http://megasun.bch.umontreal.ca/People/lartillot/www/download.html PhyloBayes] or Mr. Bayes [[Using Mr Bayes to For Phlyogenetic Analysis]].
=== PhyloBayes Analysis ===
* Mark in your notes the software version used.
* The PhyloBayes manual can be found [http://megasun.bch.umontreal.ca/People/lartillot/www/phylobayes4.1.pdf here].

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