Intracellular
Cell type enriched (Glandular and luminal cells)
Not detected in immune cells
Cell line enriched (REH)
Self-associates. Interacts with HTT/huntingtin; enhanced by an expanded polyglutamine repeat within HTT. Interacts with DCTN1; decreased in presence of HTT with expanded polyglutamine repeat. Interacts with KLC2. Interacts with ITPR1 and APP. Interacts with AR; decreased by an expanded polyglutamine repeat within AR. Interacts with YWHAZ. Interacts with BDNF and SORT1; probably forming a complex involved in proBDNF trafficking, degradation and processing. Interacts with TBP, AHI1, HGS and KALRN. Interacts with KIF5A, KIF5B, KIF5C and GABRB3; indicative for an HAP1:KIF5 complex transporting a GABA(A) receptor as cargo. Interacts with ATXN3; in STBs with ATXN3 poly-Gln region with 27 repeats (normal population) and 79 repeats (spinocerebellar ataxia 3 (SCA3) patients) associating in the same strength. Interacts with NTRK2; HAP1 stabilizes association of NTRK2 with SORT1 preventing NTRK2 degradation. Interacts with CCDC113.
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For Research Use Only. Not For Clinical Use.