#41 mapping to Unimod without mass in hexoses

[david ovelleiro]

In the "hexoses" group (Unimos related mod 41), the main term MOD:00434 (hexosylated residue) has a mass equal to "none". The other related terms (MOD:01347 MOD:00222 MOD:00166 MOD:00332 MOD:01348 MOD:00161 MOD:01346 MOD:01065) all have mass 162.052823.
The Unimod term has an associated mass. The related PSI-MOD hasn't.
Two possible solutions here:
. assign a 162 mass to the main term (MOD:00434)
. generate an intermediate term, child to MOD:00434 and parent the 8 previous terms with a mass of 162 and remove the unimod mapping from MOD:00434 and creating the main unimod mapping in this newly created term.