Disease relevance of braC

• Cloning and nucleotide sequence of braC, the structural gene for the leucine-, isoleucine-, and valine-binding protein of Pseudomonas aeruginosa PAO [1].

High impact information on braC

• Using mouse BALB/3T3 cells, we established two LIVAT-BP transfectants by transfection of a plasmid harboring the intact braC or braC gene fused with the mitochondrial transport signal derived from the yeast COXIV gene [2].
• We also found mutations that seem likely to be mutations in a promoter region for the bra genes and those with polarity in the intercistronic region between braC and braD [3].
• The fragment contained the braC gene, encoding the binding protein for branched-chain amino acids, and the 4-kilobase DNA segment adjacent to 3' of braC [4].
• Analysis with an omega interposon showed that the bra genes are organized as an operon and are cotranscribed in the order braC-braD-braE-braF-braG from a promoter located in the 5'-flanking region of the braC gene [3].
• The plasmid carrying the LIVAT-BP gene restored the activity of the high-affinity branched-chain amino acid transport system (the leucine, isoleucine, valine [LIV-I] transport system) in the braC310 mutant of P. aeruginosa, confirming that braC is the structural gene for LIVAT-BP [1].

Biological context of braC

• Strains with braC310 produced a binding protein for leucine, isoleucine, valine, alanine, and threonine (LIVAT-BP) altered in binding ability, indicating that the braC gene is the structural one for the LIVAT-BP [5].

References