modify header of sequences file

Question

[Jason]

Hello everybody, I am not and expert with sed and I am sure that someone will do this work faster and better than me.

I would like to edit multiple fasta header from this format.

input file :

 >sp|O35215|DOPD_MOUSE D-dopachrome decarboxylase OS=Mus musculus GN=Ddt PE=1 SV=3
MPFVELETNLPASRIPAGLENRLCAATATILDKPEDRVSVTIRPGMTLLMNKSTEPCAHL
LVSSIGVVGTAEQNRTHSASFFKFLTEELSLDQDRIVIRFFPLEAWQIGKKGTVMTFL

Result should be like below:

>O35215 DOPD_MOUSE D-dopachrome decarboxylase OS=Mus musculus GN=Ddt PE=1 SV=3
MPFVELETNLPASRIPAGLENRLCAATATILDKPEDRVSVTIRPGMTLLMNKSTEPCAHL
LVSSIGVVGTAEQNRTHSASFFKFLTEELSLDQDRIVIRFFPLEAWQIGKKGTVMTFL

Answer 1

[Pierre Lindenbaum]

`sed 's/^>[^|]*|/>/;/^>/s/|/ /g'` in.fasta