function:May activate transcription by interacting directly with the X-box.,similarity:Belongs to the RFX family.,subunit:Homodimer. Heterodimer with RFX2 and RFX3. Binds DNA.,tissue specificity:Isoform 4 is testis-specific. Isoform 1 is expressed in brain and gliomas. Isoform 2 and isoform 3 are testis-specific (at protein level). Isoform 1 is expressed in brain (at protein level). Isoform 3 is expressed at a higher level in adult testes and ejaculated spematozoa than in fetal testes.,
Nucleus .
Isoform 1: Expressed in brain and gliomas (at protein level). Isoform 2: Testis-specific (at protein level). Isoform 3: Testis-specific (at protein level). Isoform 3: Expressed at a higher level in adult testes and ejaculated spematozoa than in fetal testes. Isoform 4: Testis-specific.
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