KRAB-A domain containing 1 (KRBA1)

KRBA1 (KRAB-A domain containing 1) is a human protein containing a KRAB (Kruppel-associated box) domain and multiple C2H2-type zinc finger motifs, characteristic of KRAB domain zinc finger transcription factors[1][2][3]. The KRAB domain acts as a strong transcriptional repressor by recruiting corepressor proteins such as KAP-1/TRIM28, which in turn assemble chromatin-modifying complexes to silence gene expression[1][2][3]. KRAB domain proteins are vertebrate-specific and function in regulation of transcription, chromatin structure, cell proliferation, differentiation, and apoptosis[1][2]. While KRAB-ZFPs play significant regulatory roles and are implicated in cancer by virtue of their involvement in cell cycle and apoptosis[1][2], there is no direct evidence that KRBA1, or the ambiguous "KRAB domain containing 3," is a validated therapeutic drug target, nor is its involvement with pharmacological agents or clinical biomarkers documented.

Other names

KRBA1KRAB-A domain containing 1KIAA1862protein KRBA1

No mechanism of action described for drugs targeting KRBA1/KRABD3; general KRAB-ZFP mechanism involves transcriptional repression via corepressor KAP-1/TRIM28 recruitment[1][2][3]