Constitutive protein of the cell wall. Binds fatty acids and may thus serve as a fatty acid transporter between P.marneffei and host cells during infection (PubMed:20053994). Abundant antigen target of host humoral immune response (PubMed:9488383). Monomer. Associated with the entire thickness of the cell walls of yeast and conidia found in mold form. Localizes on the outer layers of the hyphal cell walls. Mannoprotein, glycosylated. An enzyme-linked immunosorbent assay (ELISA) with antibodies against Mp1 protein as well as Mp1 antigen-based ELISA can be used to detect infections caused by P.marneffei (penicilliosis). Belongs to the cell wall mannoprotein 1 family.