Plasmodium yoelii subtelomeric family PYST-A
This model represents a paralogous family of Plasmodium yoelii genes preferentially located in the subtelomeric regions of the chromosomes. Members of this family are expressed in both the Sporozoite and Gametozoite life stages. A single high-scoring gene was identified in the complete genome of P. falciparum as well as a single gene from P. chaboudi from GenBank which were included in the seed. There are no obvious homologs to these genes in any non-Plasmodium organism. These observations suggest an expansion of this family in yoelii from a common Plasmodium ancestor gene (present in a single copy in falciparum).