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  • Title: Nucleotide sequence of the mRNA encoding the cytosolic form of phosphoenolpyruvate carboxykinase (GTP) from the chicken.
    Author: Cook JS, Weldon SL, Garcia-Ruiz JP, Hod Y, Hanson RW.
    Journal: Proc Natl Acad Sci U S A; 1986 Oct; 83(20):7583-7. PubMed ID: 3094011.
    Abstract:
    We have determined the sequence of the mRNA encoding cytosolic phosphoenolpyruvate carboxykinase (GTP) [GTP:oxaloacetate carboxy-lyase (transphosphorylating), EC 4.1.1.32] from the chicken and have deduced the primary structure of the protein. The message for the enzyme is 2762 bases long and encodes a protein of 622 amino acids with a molecular mass of 69,522 daltons. The 5' untranslated region is 246 nucleotides long and contains two nonfunctional AUG initiator codons. The 3' untranslated sequence is 649 bases long and contains multiple polyadenylylation signals. There are regions of dyad symmetry and an A + U-rich region within the 3' translated and untranslated sequences of the message. Such regions are also present in the mRNA for the enzyme from the rat and may be of functional significance. Conserved regions of the enzyme, that may interact with substrates, were identified by comparing the amino acid sequence of phosphoenolpyruvate carboxykinase with that of other proteins that use guanine nucleotides and phosphoenolpyruvate as substrates.
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