testis-specific Y-encoded protein 9 (TSPY9, TSPY9P)

Function

• may be involved in sperm differentiation & proliferation

Structure

• belongs to the nucleosome assembly protein (NAP) family

Compartment

cytoplasm . nucleus

Polymorphism

• maps to a tandemly repeated region on chromosome Yp11
• additionally at least one copy is reported originating from Yq
• gene is thought to be present with an inter-individual variation in copy number & between 20 & 60 copies per Y chromosome expected
• 35 tandemly repeated gene copies on Yp11 originating from one individual reported

More general terms

• testis-specific protein

Database

• UniProt: http://www.uniprot.org/uniprot/A0A494C1R9.html