PDC-109 is a major

bovine Bovines (subfamily Bovinae) comprise a diverse group of 10 genera of medium to large-sized ungulates, including Bos, cattle, bison, African buffalo, Bubalus, water buffalos, and the four-horned and spiral-horned antelopes. The members of this gro ...

seminal plasma protein. In bovine

semen Semen, also known as seminal fluid, is a bodily fluid that contains spermatozoon, spermatozoa which is secreted by the male gonads (sexual glands) and other sexual organs of male or hermaphrodite, hermaphroditic animals. In humans and placen ...

its concentration is about 15–20 mg/ml, which comprises about 60 percent of total proteins present in the bovine seminal plasma. A characteristic feature of this protein is that it contains two fibronectin type 2 (Fn2) domain. Each domain in this protein binds to lipid head group with cation-pi interaction.

References

{{protein-stub Reproduction in mammals