Entering edit mode
Lavinia Gordon
▴
480
@lavinia-gordon-2959
Last seen 10.2 years ago
Dear all,
I have recently tried the package bgafun and am having problems
with the
sequence file format.
I have a file in CLUSTAL format (*.aln). I have checked the
read.alignment
details and the file fulfills the criteria.
I am using the commands:
>LDH <- read.alignment(file = "clustalw.aln", format = "clustal")
>class(LDH)
[1] "alignment"
this command:
>LDH.amino = convert_aln_amino(LDH)
is slow, and echoes the content of the file back to me. Scrolling
through
the screen, I can see a couple of error messages:
[4871] "-" "-"
"-"
"-"
[1] "Error for position " "1673" "in
"
"-" "-"
[6] "-" "-"
"-"
"-" "-"
The aligned file (*.aln) looks like this:
CLUSTAL W (1.81) multiple sequence alignment
MDH9402143
------------------------------------------------------------
MDH1933634
------------------------------------------------------------
MDH4407328
------------------------------------------------------------
...
MDH9402143 -----MAEAPPRRLGLGPPPGDAPRAELVALTAVQSEQGEAGGG---
GSPRRLGLLGSPL
MDH1933634 -----MAEAPPRRLGLGPPPGDAPRAELVALTAVQSEQGEAGGG---
GSPRRLGLLGSPL
MDH4407328 -----MAEAPPRRLGLGPPPGDAPRAELVALTAVQSEQGEAGGG---
GSPRRLGLLGSPL
I have saved the output directly from CLUSTAL in .aln format, and
it is
accepted by other sequence programs, e.g. MEGA. If anyone can shed
any
light onto what I am doing wrong with the alignment, I would
greatly
appreciate it.
With thanks for your time,
Lavinia Gordon.
-------------------------------------------------------
Bioinformatics Department
Rm SW916, 9th Floor
Murdoch Children's Research Institute
Royal Children's Hospital
Flemington Road, Parkville
Victoria 3052
Australia
Tel: (+613) 8341 6221
-------------------------------------------------------