Substrate-specific adapter for CUL3 E3 ubiquitin-protein ligase complex. Acts as an adapter for CUL3 to target the serine/threonine-protein phosphatase 2A (PP2A) subunit PPP2R5B for ubiquitination and subsequent proteasomal degradation, thus promoting exchange with other regulatory subunits. Acts as an adapter for CUL3 to target the DNA-end resection factor RBBP8/CtIP for ubiquitination and subsequent proteasomal degradation. Through the regulation of RBBP8/CtIP protein turnover, plays a key role in DNA damage response, favoring DNA double-strand repair through error-prone non-homologous end joining (NHEJ) over error-free, RBBP8-mediated homologous recombination (HR). This gene encodes a member of the kelch-like family of proteins that share a common domain structure consisting of an N-terminal broad-complex, tramtrack, bric-a-brac/poxvirus and zinc finger domain and C-terminal kelch repeat motifs. The encoded protein may be involved in protein ubiquitination and cytoskeletal organization.
Background References
1. Kido J et al. X-linked intellectual disability related to a novel variant of KLHL15. Hum Genome Var. 2023 Jul
Western blot analysis of KLHL15 on different lysates with Rabbit anti-KLHL15 antibody (R1407-2) at 1/1,000 dilution.
Lane 1: HEK-293 cell lysate (20 µg/Lane) Lane 2: HeLa cell lysate (20 µg/Lane) Lane 3: Jurkat cell lysate (20 µg/Lane)
Predicted band size: 70 kDa Observed band size: 75 kDa Exposure time: 30 seconds; 4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (R1407-2) at 1/1,000 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/100,000 dilution was used for 1 hour at room temperature.
ICC staining KLHL15 in Hela cells (green). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
ICC staining KLHL15 in PANC-1 cells (green). Cells were fixed in paraformaldehyde, permeabilised with 0.25% Triton X100/PBS.
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