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The primary structure of rat ribosomal protein L29

Y L Chan1, J Olvera, V Paz

  • 1Department of Biochemistry and Molecular Biology, University of Chicago, Illinois 60637.

Biochemical and Biophysical Research Communications
|April 30, 1993
PubMed

Insights

Researchers determined the amino acid sequence for rat ribosomal protein L29, finding it has 155 amino acids and is encoded by 20-22 genes. This protein is related to yeast ribosomal protein YL43.

Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • Ribosomal proteins are essential components of ribosomes, the cellular machinery responsible for protein synthesis.
  • Understanding the structure and genetics of ribosomal proteins is crucial for deciphering gene expression and cellular function.

Purpose of the Study:

  • To determine the amino acid sequence of the rat 60S ribosomal subunit protein L29.
  • To investigate the gene copy number and mRNA characteristics of rat ribosomal protein L29.

Main Methods:

  • Deduction of amino acid sequence from complementary DNA (cDNA) nucleotide sequence.
  • Analysis of recombinant cDNA.
  • Hybridization of cDNA to digested nuclear DNA to estimate gene copy number.

Main Results:

  • The deduced amino acid sequence of rat ribosomal protein L29 comprises 155 amino acids.
  • The mature protein has a molecular weight of 17,183 Da, with the N-terminal methionine removed post-translation.
  • The gene for rat L29 is present in 20-22 copies, and its messenger RNA (mRNA) is approximately 750 nucleotides long.
  • Rat L29 shows homology to yeast ribosomal protein YL43.

Conclusions:

  • The primary structure and gene organization of rat ribosomal protein L29 have been elucidated.
  • The findings provide insights into the genetic basis and evolution of ribosomal proteins.
  • Rat L29 is evolutionarily related to its yeast counterpart, suggesting conserved functions in ribosomes across species.

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