SYCE1

This gene encodes a member of the synaptonemal complex, which links homologous chromosomes during prophase I of meiosis. The tripartite structure of the complex is highly conserved amongst metazoans. It consists of two lateral elements and a central region formed by transverse elements and a central element. The protein encoded by this gene localizes to the central element and is required for initiation and elongation of the synapsis. Allelic variants of this gene have been associated with premature ovarian failure and spermatogenic failure. Alternative splicing results in multiple transcript variants.

Full Name

synaptonemal complex central element protein 1

Function

Major component of the transverse central element of synaptonemal complexes (SCS), formed between homologous chromosomes during meiotic prophase. Requires SYCP1 in order to be incorporated into the central element. May have a role in the synaptonemal complex assembly, stabilization and recombination.

Biological Process

Biological Process cell divisionIEA:UniProtKB-KW
Biological Process synaptonemal complex assemblyIC:BHF-UCL1 Publication

Cellular Location

Nucleus
Chromosome
Associates with chromatin. In prophase I stage of meiosis, localizes in the transverse central elements of the central region between lateral elements of the synaptonemal complexes. Found only where the chromosome cores are synapsed. Colocalizes with SYCE2 in the central elements.

Involvement in disease

Premature ovarian failure 12 (POF12):
An ovarian disorder defined as the cessation of ovarian function under the age of 40 years. It is characterized by oligomenorrhea or amenorrhea, in the presence of elevated levels of serum gonadotropins and low estradiol.
Spermatogenic failure, 15 (SPGF15):
An infertility disorder caused by spermatogenesis defects and characterized by non-obstructive azoospermia due to complete meiotic maturation arrest. SPGF15 inheritance is autosomal recessive.