USP14 KO cell line available to order. Free of charge wild type control provided. Knockout achieved by using CRISPR/Cas9, Homozygous: 1 bp insertion in exon 1.
Deubiquitinating enzyme 14, UBP14_HUMAN, USP 14, Ubiquitin carboxyl-terminal hydrolase 14, Ubiquitin specific peptidase 14, Ubiquitin specific protease 14, Ubiquitin thiolesterase 14, Ubiquitin-specific-processing protease 14, tRNA guanine transglycosylase 60 kD subunit, tRNA-guanine transglycosylase
USP14 KO cell line available to order. Free of charge wild type control provided. Knockout achieved by using CRISPR/Cas9, Homozygous: 1 bp insertion in exon 1.
Upon arrival, the vial should be stored in liquid nitrogen vapor phase and not at -80°C. Storage at -80°C may result in loss of viability.
1. Thaw the vial in 37°C water bath for approximately 1-2 minutes.
2. Transfer the cell suspension (0.8 mL) to a 15 mL/50 mL conical sterile polypropylene centrifuge tube containing 8.4 mL pre-warmed culture medium, wash vial with an additional 0.8 mL culture medium (total volume 10 mL) to collect remaining cells, and centrifuge at 201 x g (rcf) for 5 minutes at room temperature. 10 mL represents minimum recommended dilution. 20 mL represents maximum recommended dilution.
3. Resuspend the cell pellet in 5 mL pre-warmed culture medium and count using a haemocytometer or alternative cell counting method seed all remaining cells into a T25.
4. Incubate the culture at 37°C incubator with 5% CO2. Check the culture one day after revival and continue to check until 80% confluent. Media change can be given if needed.
5. Once confluent passage into an appropriate flask at a density of 2x104 cells/cm2. Seeding density is given as a guide only and should be scaled to align with individual lab schedules. Cultures should be monitored daily.
Western blot data indicates that the CRISPR gene edit may have resulted in a truncation of the protein of interest. Please see data images.
We will provide viable cells that proliferate on revival.
This product is subject to limited use licenses from The Broad Institute, ERS Genomics Limited and Sigma-Aldrich Co. LLC, and is developed with patented technology. For full details of the licenses and patents please refer to our limited use license and patent pages.
USP14 also known as Ubiquitin Specific Peptidase 14 is a deubiquitinating enzyme that plays a mechanical role in the ubiquitin-proteasome system. This enzyme has a molecular mass around 56 kDa and is essential for proteasome-mediated degradation activities. It is broadly expressed across many tissues but shows significant presence in the nervous system. Often people refer to USP14 as TGT in the context of certain studies or databases.
USP14 functions in regulating protein turnover by removing ubiquitin from substrate proteins impacting their stability and degradation. USP14 is part of a larger protein complex associated with the proteasome specifically binding to the 19S regulatory particle. It is important in maintaining cellular protein homeostasis by editing ubiquitin chains on target proteins prior to degradation.
USP14 participates in ubiquitin-proteasome pathways and ER-associated degradation pathway. In these processes it works closely with other proteasome proteins such as Rpn11 which also removes ubiquitin from proteins. The regulation of these pathways by USP14 directly affects protein quality control in cells influencing processes like cell cycle and stress response.
USP14 has associations with neurodegenerative diseases such as Alzheimer's and Parkinson’s. It affects disease progression by modulating levels of proteins that aggregate in these conditions. Connections between USP14 and proteins such as tau and α-synuclein highlight its contribution to the pathological features seen in these disorders. Further research into USP14's role may help to uncover new therapeutic strategies for these diseases.
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False colour image of Western blot: Anti-USP14/TGT antibody [EPR15943] - C-terminal staining at 1/1000 dilution shown in green; Mouse anti-GAPDH antibody [6C5] (Anti-GAPDH antibody [6C5] - Loading Control ab8245) loading control staining at 1/20000 dilution shown in red. In Western blot Anti-USP14/TGT antibody [EPR15943] - C-terminal ab192618 was shown to bind specifically to USP14/TGT. A band was observed at 63 kDa in wild-type HeLa cell lysates with no signal observed at this size in USP14 CRISPR-Cas9 edited cell line ab266854 (CRISPR-Cas9 edited cell lysate Human USP14 (TGT) knockout HeLa cell lysate ab257787). The band observed in the CRISPR-Cas9 edited lysate lane below 63 kDa is likely to represent a truncated form of USP14/TGT. This has not been investigated further and the functional properties of the gene product have not been determined. To generate this image wild-type and USP14 CRISPR-Cas9 edited HeLa cell lysates were analysed. First samples were run on an SDS-PAGE gel then transferred onto a nitrocellulose membrane. Membranes were blocked in 5 % milk in TBS-0.1 % Tween® 20 (TBS-T) before incubation with primary antibodies overnight at 4 °. Blots were washed four times in TBS-T incubated with secondary antibodies for 1 h at room temperature washed again four times then imaged. Secondary antibodies used were Goat anti-Rabbit IgG H&L (IRDye® 800CW) preabsorbed (Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preabsorbed (Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed ab216776) at 1/20000 dilution.
All lanes: Western blot - Anti-USP14/TGT antibody [EPR15943] - C-terminal (Anti-USP14/TGT antibody [EPR15943] - C-terminal ab192618) at 1/1000 dilution
Lane 1: Wild-type HeLa cell lysate at 20 µg
Lane 2: USP14 CRISPR-Cas9 edited HeLa cell lysate at 20 µg
Lane 2: Western blot - Human USP14 (TGT) knockout HeLa cell line (ab266854)
Lane 3: USP14 knockout HeLa cell lysate at 20 µg
Performed under reducing conditions.
Predicted band size: 56 kDa
Observed band size: 63 kDa
Homozygous: 1 bp insertion in exon 1
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