fix pygor3.generate for TRA

[gszep]

without these files the following raises an error because anchor_index cannot be found for VJ genes

import pygor3 as p3
model = p3.get_default_IgorModel("human", "TRA")
p3.generate(Nseqs=10, mdl=model)

[gszep]

the resultant CDR3 aino acid sequences from

igor -set_wd dir -species human -chain TRA -generate 10 --CDR3 --noerr

are incorrect. They do not start with a C or end in an F and are way too long

[dana98moreno]

the resultant CDR3 aino acid sequences from

igor -set_wd dir -species human -chain TRA -generate 10 --CDR3 --noerr

are incorrect. They do not start with a C or end in an F and are way too long

Hello @gszep,
Yes I also noticed the same problem in my results when I run:

igor -set_wd $WDPATH -batch alpha_10000000_CDR3 -species human -chain alpha -generate 10000000 --CDR3

@alfaceor Do you have any suggestions on how we can solve this issue ? The CDR3 sequences of the beta chain seem to be correct so this is a problem only on the alpha chain apparently.

[gszep]

@dana98moreno I ended up using Olga instead :) much easier to use