Expression and interstrain variability of the YPS3 gene of Histoplasma capsulatum.
The YPS3 locus of the dimorphic fungus Histoplasma capsulatum encodes a secreted and surface-localized protein specific to the pathogenic yeast phase. In this study we examined this locus in 32 H. capsulatum strains and variants. Although protein production is limited to a select group of strains, the North American restriction fragment length polymorphism class 2/NAm 2 isolates, the locus was present in all the strains we examined. The YPS3 gene is well conserved in its 5' and 3' regions but displays an intragenic hypervariable region of tandem repeats that fluctuates in size between strains. This feature is similar to that seen with genes encoding several cell surface proteins in other fungi.
Bohse
Megan L
ML
Department of Medical Microbiology and Immunology, 420 SMI, University of Wisconsin Medical School, 1300 University Avenue, Madison, WI 53706, USA.
Woods
Jon P
JP
D000595:Amino Acid Sequence; D001483:Base Sequence; D005656:Fungal Proteins / Q000737:chemistry / Q000235:genetics; D015966:Gene Expression Regulation, Fungal; D005800:Genes, Fungal / Q000235:genetics*; D014644:Genetic Variation; D006658:Histoplasma / Q000145:classification* / Q000166:cytology / Q000235:genetics* / Q000302:isolation & purification; D008969:Molecular Sequence Data; D016366:Open Reading Frames / Q000235:genetics; D017422:Sequence Analysis, DNA
D005656:Fungal Proteins