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What does AAAT stand for?

AAAT stands for Adipocyte amino acid transporter

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A cDNA encoding a novel insulin-activated adipocyte amino acid transporter (designated AAAT) was cloned from a mouse 3T3-L1 adipocyte library. The deduced amino acid sequence of the cDNA corresponds to a protein of 553 amino acids that possesses 56% amino acid sequence identity to the human neutral amino acid transporter and 42% identity to the rat brain glutamate transporter. Transient transfection of 3T3-L1 preadipocytes with an AAAT expression vector led to insulin-dependent uptake of L-serine and to a lesser extent, uptake of L-alanine and L-glutamate.
It was identified that a Sp1-like cis-element in the adipocyte amino acid transporter gene (AAAT) promoter is the major cis-motif for its induced expression during the 3T3-L1 preadipocyte differentiation process. Electrophoretic mobility shift analysis of this cis DNA element showed that the transcription factors binding to this sequence were Sp1 and Sp3. Protein analysis of Sp1 and Sp3 in nuclear extracts from 3T3-L1 cells at various differentiation stages indicated that these two transcription factors existed in noninduced 3T3-L1 preadipocytes, but they did not bind to the AAAT promoter element with high affinity.
It was identified that a Sp1-like cis-element in the adipocyte amino acid transporter gene (AAAT) promoter is the major cis-motif for its induced expression during the 3T3-L1 preadipocyte differentiation process. Electrophoretic mobility shift analysis of this cis DNA element showed that the transcription factors binding to this sequence were Sp1 and Sp3. Protein analysis of Sp1 and Sp3 in nuclear extracts from 3T3-L1 cells at various differentiation stages indicated that these two transcription factors existed in noninduced 3T3-L1 preadipocytes, but they did not bind to the AAAT promoter element with high affinity.
; Lane, M. D. A cDNA encoding a novel insulin-activated adipocyte amino acid transporter (designated AAAT) was cloned from a mouse 3T3-L1 adipocyte library. The deduced amino acid sequence of the cDNA corresponds to a protein of 553 amino acids that possesses 56% amino acid sequence identity to the human neutral amino acid transporter and 42% identity to the rat brain glutamate transporter.