KLHL30 Gene: Function, Expression, and Disease Associations | Biomedical SEO

KLHL30 (Kelch like family member 30) is a protein-coding gene located on chromosome 2q31.1. It encodes a member of the Kelch-like protein family, characterized by a BTB/POZ domain and multiple Kelch repeats. These proteins typically function as substrate adapters for Cullin-RING E3 ubiquitin ligases, mediating ubiquitination and proteasomal degradation of target proteins. KLHL30 is expressed in various tissues, with notable levels in the thyroid and adrenal glands, and may play roles in cellular processes such as protein turnover and cytoskeletal organization. Its specific substrates and physiological functions are still under investigation.

Tissue Expression

Cell Line Expression

Hotspot Mutations

Mutation functional classification

• Ubiquitin-proteasome system (predicted)

• Cullin-RING E3 ligase complex (predicted)

KLHL30 encodes a protein of 587 amino acids with a predicted molecular mass of ~65 kDa. It contains an N-terminal BTB/POZ domain and six C-terminal Kelch repeats, typical of the Kelch-like family. The BTB domain mediates protein-protein interactions, often with Cullin proteins, while Kelch repeats form a beta-propeller structure that binds substrates. KLHL30 is predicted to function as a substrate adapter for Cullin-RING E3 ubiquitin ligases, targeting specific proteins for ubiquitination and degradation. Its expression in endocrine tissues suggests a role in hormone-related processes, but detailed functional studies are lacking.