Open AccessNucleotide Sequence of the F1-ATPase α Subunit Gene from Maize Mitochondria
Author(s) -
Carl J. Braun,
Charles S. Levings
Publication year - 1985
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.79.2.571
Subject(s) - scn3a , gene , biology , chloroplast , protein subunit , nucleic acid sequence , homology (biology) , mitochondrial dna , mitochondrion , atpase , microbiology and biotechnology , g alpha subunit , amino acid , peptide sequence , specificity factor , gene product , genetics , biochemistry , escherichia coli , gene expression , enzyme , rna polymerase
The alpha subunit of the F(1)-ATPase complex of maize is a mitochondrial translational product, presumably encoded by the mitochondrial genome. Based on nucleotide and amino acid homology, we have identified a mitochondrial gene, designated atpalpha, that appears to code for the F(1)-ATPase alpha subunit of Zea mays. The atpalpha gene is present as a single copy in the maize. Texas cytoplasm and is actively transcribed. The maize alpha polypeptide has a predicted length of 508 amino acids and a molecular mass of 55,187 daltons. Amino acid homologies between the maize mitochondrial alpha subunit and the tobacco chloroplast CF(1) and Escherichia coli alpha subunits are 54 and 51%, respectively. The origin of the atpalpha gene is discussed.