The gene encoding the CCDC25 protein is located at 8p21.1, on the short arm of human chromosome 8,[5] and is transcribed into an mRNA product approximately 3,583 nucleotides in length.
The protein is highly conserved among mammals as well as eukaryotes as diverse as Arabidopsis thaliana. CCDC25 is made up of a single polypeptide chain 208 amino acids in length and is expressed at a high level, nearly 4.2 times that of a normal humanprotein.[6] Its expression is nearly ubiquitous in human tissues with little indication that its expression level changes drastically in diseased tissues.[7] Despite currently lacking a well understood function, CCDC25 is predicted to localize to the nucleus[6] and was shown by a microarray experiment to be upregulated in Metaphase IIoocytes.[8]