RT Journal Article SR Electronic T1 Could rare amino acids regulate enzymes abundance? JF bioRxiv FD Cold Spring Harbor Laboratory SP 021295 DO 10.1101/021295 A1 Valentina Agoni YR 2015 UL http://biorxiv.org/content/early/2015/06/21/021295.abstract AB The number of every enzyme is the result of many mechanisms of regulation, at transcriptional and translational levels. We asked if the presence of rare amino acids in the sequence of an enzyme could represent a limiting factor in the balance between enzymes synthesis and enzymes efficiency. To try to find a correlation we analyzed the amino acids sequences of different housekeeping and metabolic enzymes.