Protein
Glutamate--glyoxylate aminotransferase 1
Organism
Arabidopsis thaliana
Function
Catalyzes the glutamate:glyoxylate (GGT or GGAT), alanine:glyoxylate (AGT), alanine:2-oxoglutarate (AKT) and glutamate:pyruvate (GPT) aminotransferase reactions in peroxisomes. Required for abscisic acid (ABA)- and stress-mediated responses in an H(2)O(2)-dependent manner. Function as a photorespiratory aminotransferase that modulates amino acid content during photorespiration (GGAT activity); promotes serine, glycine and citrulline metabolism in response to light.
Similarity
Belongs to the class-I pyridoxal-phosphate-dependent aminotransferase family. Alanine aminotransferase subfamily.
Sequence
MALKALDYDTLNENVKKCQYAVRGELYLRASELQKEGKKIIFTNVGNPHALGQKPLTFPRQVVALCQAPFLLDDPNVGMLFPADAIARAKHYLSLTSGGLGAYSDSRGLPGVRKEVAEFIQRRDGYPSDPELIFLTDGASKGVMQILNCVIRGNGDGILVPVPQYPLYSATISLLGGTLVPYYLDESENWGLDVANLRQSVAQARSQGITVRAMVIINPGNPTGQCLSEANIREILKFCYNEKLVLLGDEVYQQNIYQDERPFISSKKVLMEMGSPFSKEVQLVSFHTVSKGYWGECGQRGGYFEMTNLPPRVVEEIYKVASIALSPNVSAQIFMGLMVNPPKPGDISYDQFARESKGILESLRRRARLMTDGFNSCKNVVCNFTEGAMYSFPQIRLPTGALQAAKQAGKVPDVFYCLKLLEATGISTVPGSGFGQKEGVFHLRTTILPAEDEMPEIMDSFKKFNDEFMTQYDNNFGYSKM