TY - JOUR
T1 - Isolation of bovine liver 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase cDNA
T2 - Bovine liver and heart forms of the enzyme are separate gene products
AU - Lange, Alex J.
AU - El-Maghrabi, M. Raafat
AU - Pilkis, Simon J.
PY - 1991/10
Y1 - 1991/10
N2 - In order to ascertain whether the heart and liver forms of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase were products of two different genes or arose via alternative splicing of a single gene, the bovine liver cDNA of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase was isolated from a λgt10 phage library and its sequence compared with that of bovine heart cDNA. The deduced amino acid sequence of the bovine liver cDNA was also compared with the amino acid sequence of the human and rat liver phosphofructo-2-kinase/ fructose-2,6-bisphosphatase enzyme. The bovine liver cDNA codes for a protein that has 81.6% amino acid identity with the bovine heart form and 97.0 and 98.3% identity with the rat and human liver forms of the enzyme, respectively. Comparison of the nucleotide sequences of the two bovine cDNAs and their deduced amino acid sequences demonstrates that while there is conservation of the active sites of liver/muscle and heart 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatases they are encoded by different genes.
AB - In order to ascertain whether the heart and liver forms of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase were products of two different genes or arose via alternative splicing of a single gene, the bovine liver cDNA of 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase was isolated from a λgt10 phage library and its sequence compared with that of bovine heart cDNA. The deduced amino acid sequence of the bovine liver cDNA was also compared with the amino acid sequence of the human and rat liver phosphofructo-2-kinase/ fructose-2,6-bisphosphatase enzyme. The bovine liver cDNA codes for a protein that has 81.6% amino acid identity with the bovine heart form and 97.0 and 98.3% identity with the rat and human liver forms of the enzyme, respectively. Comparison of the nucleotide sequences of the two bovine cDNAs and their deduced amino acid sequences demonstrates that while there is conservation of the active sites of liver/muscle and heart 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatases they are encoded by different genes.
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U2 - 10.1016/0003-9861(91)90617-R
DO - 10.1016/0003-9861(91)90617-R
M3 - Article
C2 - 1654864
AN - SCOPUS:0026245296
SN - 0003-9861
VL - 290
SP - 258
EP - 263
JO - Archives of Biochemistry and Biophysics
JF - Archives of Biochemistry and Biophysics
IS - 1
ER -