BCAT1 (Branched Chain Amino Acid Transaminase 1): BCAT1 is a pivotal enzyme in the metabolism of branched-chain amino acids (BCAAs), which include leucine, isoleucine, and valine. Located primarily in the cytosol of tissues such as the brain and in various tumors, BCAT1 catalyzes the reversible transamination of BCAAs to their corresponding α-keto acids, initiating their catabolic pathway. This enzyme plays an essential role in nitrogen homeostasis and the synthesis of neurotransmitters in the brain, influencing cognitive functions and neurodevelopment. Beyond its metabolic functions, BCAT1 is implicated in the proliferation and metabolism of cancer cells, highlighting its potential as a biomarker...