KLHL3 Antibody – Rabbit Polyclonal

This gene is ubiquitously expressed and encodes a full-length protein which has an N-terminal BTB domain followed by a BACK domain and six kelch-like repeats in the C-terminus. These kelch-like repeats promote substrate ubiquitination of bound proteins via interaction of the BTB domain with the CUL3 (cullin 3) component of a cullin-RING E3 ubiquitin ligase (CRL) complex. Muatations in this gene cause pseudohypoaldosteronism type IID (PHA2D); a rare Mendelian syndrome featuring hypertension, hyperkalaemia and metabolic acidosis. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Mar 2012]

KLHL3: Substrate-specific adapter of a BCR (BTB-CUL3-RBX1) E3 ubiquitin ligase complex that acts as a regulator of ion transport in the distal nephron. The BCR(KLHL3) complex may act by mediating ubiquitination of SLC12A3/NCC, thereby regulating SLC12A3/NCC subcellular location at the cell membrane. Defects in KLHL3 are the cause of Pseudohypoaldosteronism type 2D (PHA2D). A disorder characterized by severe hypertension, hyperkalemia, hyperchloremia, hyperchloremic metabolic acidosis, and correction of physiologic abnormalities by thiazide diuretics. PHA2D inheritance is autosomal dominant or recessive. 3 isoforms of the human protein are produced by alternative splicing.

Protein type: Cytoskeletal; Actin-binding

Chromosomal Location of Human Ortholog: 5q31

Cellular Component: cytoskeleton; cytosol

Molecular Function: protein binding; structural molecule activity; actin binding

Biological Process: ion homeostasis; protein ubiquitination during ubiquitin-dependent protein catabolic process; protein ubiquitination

Disease: Pseudohypoaldosteronism, Type Iid