4 aminobutyric acid 2 4-Aminobutyrate Transaminase 2 Down-Regulation 2 GABA Plasma Membrane Transport Proteins 2 Gene Expression Regulation, Fungal 2 Leu3 2 Leucine 2 Regulon 2 SPS amino acid sensor 2 Saccharomyces cerevisiae 2 Saccharomyces cerevisiae Proteins 2 Succinate-Semialdehyde Dehydrogenase (NADP+) 2 Trans-Activators 2 Transcription Factors 2 UGA regulon 2 Uga35/Dal81 2 amino acid 2 article 2 gene control 2 gene expression 2 gene induction 2 gene sequence 2 nitrogen catabolite repression 2 nonhuman 2 priority journal 2 protein processing 2 regulon 2 transcription factor 2 transcription factor Leu3 2 transcription factor UGA1 2