AHI1 Antibody – Rabbit Polyclonal

This gene is apparently required for both cerebellar and cortical development in humans. This gene mutations cause specific forms of Joubert syndrome-related disorders. Joubert syndrome (JS) is a recessively inherited developmental brain disorder with several identified causative chromosomal loci. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Oct 2008]

AHI1: is up-regulated at all stages of chronic myeloid leukemia (CML). Down-regulated during early differentiation of normal hematopoietic cells. The AHI-1 gene is activated by insertional mutagenesis in mouse models of leukemia. Important for cerebellar and cortical development, and axonal decussation. Mutations of the AHI-1 gene are associated with Joubert syndrome. Highly expressed in the most primitive normal hematopoietic cells. Expressed in brain, particularly in neurons that give rise to the crossing axons of the corticospinal tract and superior cerebellar peduncles. Genetic analysis indicates that it is important in the development of human-specific motor behaviors. Three alternatively spliced isoforms have been described.

Protein type: Adaptor/scaffold

Chromosomal Location of Human Ortholog: 6q23.3

Cellular Component: adherens junction; centriole; centrosome; cilium; cytosol; intercellular junction; nonmotile primary cilium

Molecular Function: identical protein binding; protein binding

Biological Process: central nervous system development; cilium biogenesis; heart looping; hindbrain development; morphogenesis of a polarized epithelium; negative regulation of apoptosis; positive regulation of polarized epithelial cell differentiation; positive regulation of receptor internalization; positive regulation of transcription from RNA polymerase II promoter; regulation of behavior; specification of axis polarity; transmembrane receptor protein tyrosine kinase signaling pathway; vesicle-mediated transport

Disease: Joubert Syndrome 3