Product: KLHL22 Antibody
Catalog: BF0471
Description: Mouse monoclonal antibody to KLHL22
Application: WB IF/ICC ELISA
Reactivity: Human
Mol.Wt.: 72kDa; 72kD(Calculated).
Uniprot: Q53GT1
RRID: AB_2833848

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Product Info

ELISA 1:10000, WB 1:500-1:2000, IF/ICC 1:200-1:1000
*The optimal dilutions should be determined by the end user.

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Monoclonal [AFB1824]
KLHL22 antibody detects endogenous levels of total KLHL22.
Cite Format: Affinity Biosciences Cat# BF0471, RRID:AB_2833848.
Mouse IgG1 in phosphate buffered saline (without Mg2+ and Ca2+), pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.


2610318I18Rik; kelch-like 22; kelch-like family member 22; Kelch-like protein 22; KELCHL; KLH22_HUMAN; Klhl22; RGD1306288;



Purified recombinant fragment of human KLHL22 expressed in E. Coli.

KLHL22 (kelch-like protein 22) is a 634 amino acid protein that is related to the Drosophilakelch protein, which is required to maintain Actin organization in ovarian ring canals. Mutations affecting Kelch function result in the failure of Kelch to associate with the ring canals and subsequent female sterility. Human KLHL22 protein contains six kelch repeats and one BTB (POZ) domain. The BTB (Broad-Complex, Tramtrack and Bric a brac) domain, also known as the POZ (Poxvirus and Zinc finger) domain, is an N-terminal homodimerization domain that contains multiple copies of kelch repeats and/or C2H2-type zinc fingers. Proteins that contain BTB domains are thought to be involved in transcriptional regulation via control of chromatin structure and function. There are two isoforms of KLHL22 that are produced as a result of alternative splicing events.

Research Backgrounds


Substrate-specific adapter of a BCR (BTB-CUL3-RBX1) E3 ubiquitin ligase complex required for chromosome alignment and localization of PLK1 at kinetochores. The BCR(KLHL22) ubiquitin ligase complex mediates monoubiquitination of PLK1, leading to PLK1 dissociation from phosphoreceptor proteins and subsequent removal from kinetochores, allowing silencing of the spindle assembly checkpoint (SAC) and chromosome segregation. Monoubiquitination of PLK1 does not lead to PLK1 degradation. The BCR(KLHL22) ubiquitin ligase complex is also responsible for the amino acid-stimulated 'Lys-48' polyubiquitination and proteasomal degradation of DEPDC5. Through the degradation of DEPDC5, releases the GATOR1 complex-mediated inhibition of the TORC1 pathway. It is therefore an amino acid-dependent activator within the amino acid-sensing branch of the TORC1 pathway, indirectly regulating different cellular processes including cell growth and autophagy.

Subcellular Location:

Cytoplasm>Cytosol. Cytoplasm>Cytoskeleton>Microtubule organizing center>Centrosome. Cytoplasm>Cytoskeleton>Spindle. Nucleus. Lysosome.
Note: Mainly cytoplasmic in prophase and prometaphase. Associates with the mitotic spindle as the cells reach chromosome bi-orientation. Localizes to the centrosomes shortly before cells enter anaphase After anaphase onset, predominantly associates with the polar microtubules connecting the 2 opposing centrosomes and gradually diffuses into the cytoplasm during telophase (PubMed:23455478). Localizes to the nucleus upon amino acid starvation (PubMed:29769719). Relocalizes to the cytosol and associates with lysosomes when amino acids are available (PubMed:29769719).

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Subunit Structure:

Component of the BCR(KLHL22) E3 ubiquitin ligase complex, at least composed of CUL3, KLHL22 and RBX1. Interacts with PLK1. Interacts with DEPDC5 (via DEP domain); the interaction depends on amino acid availability. Interacts with YWHAE; required for the nuclear localization of KLHL22 upon amino acid starvation.

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