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Description

Synaptonemal complex protein 2 (UniProt: Q9CUU3, also known as SCP-2, SYCP2, Synaptonemal complex lateral element protein) is encoded by the Sycp2 (also known as Scp2) gene (Gene ID: 320558) in murine species.SYCP2 is present in testis and spermatocyte and is a major component of the axial/lateral elements of synaptonemal complexes (SCS) during meiotic prophase and plays a role in the assembly of synaptonemal complexes. It is required for normal meiotic chromosome synapsis during oocyte and spermatocyte development and for normal male and female fertility. SYCP2 is considered to be a primary determinant of axial/lateral elements and can heterodimerize with SYCP3 and it is is required for the incorporation of SYCP3 into the synaptonemal complex. An evolutionarily conserved coiled coil domain in SYCP2 is required for binding to SYCP3. Defects in SYCP2 leads to sterility in male mice due to defective meiotic chromosome synapsis during spermatocyte development. Also, SYCP2 deficient mice show much reduced testes weight.