Target intelligence / Profile preview

Family with sequence similarity 9 member A (FAM9A)

Target
FAM9A
Molecular classification
Other (Protein of unknown or unclassified function; possibly nuclear, not a receptor, enzyme, transporter, or major signaling class)
01

Overview

Family with sequence similarity 9 member A (FAM9A) is a protein-coding gene located on the X chromosome that belongs to a small gene family arising from duplication events. The protein may be localized to the nucleolus and shares some homology with synaptonemal complex proteins, which are involved in chromosome pairing during meiosis. FAM9A is predominantly expressed in the testis, and rare variants have been reported in association with male infertility, but loss-of-function variants appear in both cases and controls, making it unlikely to be a monogenic cause of infertility. Its precise biological function, disease relevance, and molecular classification remain not fully defined, and it is not considered a therapeutic target at this time.

Other names
Protein FAM9ATEX39ATestis expressed 39AGC0XU990384GC0XM008105GC0XM008170GC0XM008568GC0XM008718GC0XM006586GC0XM008759
02

Biological functions

Possible role in spermatogenesis (testis-expressed)May localize to the nucleolus and have some similarity to synaptonemal complex proteins (implicated in chromosome pairing during meiosis)Other (function not fully established)
03

Disease associations

Other (Rare variants have been found in cases of male infertility, but currently not a validated causative gene; previously linked to Phlyctenulosis and Kallmann syndrome but with very limited supporting evidence)
04

Safety considerations

No safety concerns or therapeutic challenges specifically known, as it is not a drug target

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