By sequence analysis of 96 randomly selected clones in a cDNA library of Xa
nthophyllomyces dendrorhous, ten novel, full-length clones encoding cytopla
smic ribosomal proteins (rp) were found. The deduced amino acid sequences s
howed significant homology to their counterparts from eukaryotic origin inc
luding mammals, fungi and plants. Some ribosmal protein encoding cDNAs appe
ared several times, but by Southern blot analysis it was shown they are enc
oded by a single copy gene. The nucleotide sequences of ten full length cDN
As were used to investigate the codon usage in X. dendrorhous.