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. Author manuscript; available in PMC: 2008 Sep 1.
Published in final edited form as: Fungal Genet Biol. 2007 Jan 10;44(9):905–919. doi: 10.1016/j.fgb.2007.01.004

Table 1.

Abbreviations referring to P. murina MSG gene family and its expression site

Abbreviation Meaning Defining Characteristics
MSG Major Surface Glycoprotein The predominant protein found on the surface of Pneumocystis organisms. MSGs are approximately 120 kDa, are glycosylated and cysteine rich. There are many different isoforms of MSG, each encoded by a member of the MSG gene family.
UCS Upstream Conserved Sequence The conserved sequence found at the 5-prime end of every messenger RNA molecule encoding an MSG protein.
CRJE Conserved Recombination Element The conserved sequence found at the beginning of every open reading frame encoding an MSG protein.
ES Expression Site The locus to which an MSG gene must be attached in order to be transcribed. The ES includes the UCS locus and a presumptive promoter.