Homologous-pairing protein 2 homolog; Isoform 2 of Homologous-pairing protein 2 homolog

Plays an important role in meiotic recombination. Stimulates DMC1-mediated strand exchange required for pairing homologous chromosomes during meiosis. The complex PSMC3IP/MND1 binds DNA, stimulates the recombinase activity of DMC1 as well as DMC1 D-loop formation from double-strand DNA. This complex stabilizes presynaptic RAD51 and DMC1 filaments formed on single strand DNA to capture double-strand DNA. This complex stimulates both synaptic and presynaptic critical steps in RAD51 and DMC1-promoted homologous pairing. May inhibit HIV-1 viral protein TAT activity and modulate the activity of proteasomes through association with PSMC3. Acts as a tissue specific coactivator of hormone-dependent transcription mediated by nuclear receptors. {ECO:0000269|PubMed:10806355, ECO:0000269|PubMed:16407260, ECO:0000269|PubMed:21963259}.

Associated with:

Matrix Type

  • Tissue/Cells

Gene Symbol


UniProt ID

  • Q9P2W1

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