Recombinant human TSSK2 protein (GST tag N-Terminus)

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Testis-specific serine/threonine kinase 2 commonly known as TSSK2 is a serine/threonine protein kinase with a molecular weight of approximately 42 kDa. TSSK2 is predominantly expressed in testicular tissue where it plays an essential role in sperm development. The protein is characterized by a kinase domain that is important for its activity allowing it to transfer a phosphate group from ATP to serine/threonine residues on substrate proteins which affects their function and activity.

Biological function summary

The function of TSSK2 extends to supporting the process of spermatogenesis. It actively participates in sperm differentiation and maturation. TSSK2 does not typically form part of any larger protein complex but acts as an individual molecule with indispensable roles in sperm cell structure formation. Through its kinase activity it modifies other proteins critical for the development of functional sperm indicating its significant contribution to male fertility.

Pathways

TSSK2 engages in the meiosis and spermatogenesis pathways serving a purpose in cellular processes that are fundamental for male germ cell development. It interacts with proteins such as HSP90 a chaperone protein which assists in the folding and function of various protein kinases during sperm production. TSSK2's actions within these pathways highlight its functional relevance and linkage to essential reproductive processes.

TSSK2 shows known associations with male infertility particularly cases characterized by failure in sperm production or maturation. Its malfunction or deficiency can compromise spermatogenesis which may relate back to defective kinase activity. Furthermore TSSK2 interplays with other proteins such as CK2 another kinase which also impacts fertility highlighting the broader network of interactions in which TSSK2 participates. Understanding these associations provides insight into potential therapeutic targets for infertility.