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AB266192

Human PSME1 knockout HEK-293T cell line

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PSME1 KO cell line available to order. KO validated by Western blot. Free of charge wild type control provided. Knockout achieved by using CRISPR/Cas9, Homozygous: 14 bp deletion in exon 3.

View Alternative Names

11S regulator complex alpha subunit, 11S regulator complex subunit alpha, 29 kD MCP activator subunit, Activator of multicatalytic protease subunit 1, IFI5111, IGUP I-5111, Interferon gamma IEF SSP 5111, Interferon gamma inducible protein 5111, Interferon gamma up-regulated I-5111 protein, MGC8628, PA28a, PA28alpha, PSME1_HUMAN, Proteasome (prosome, macropain) activator subunit 1 (PA28 alpha), Proteasome activator 28 subunit alpha, Proteasome activator complex subunit 1, Proteasome activator subunit 1, REG-alpha

3 Images
Western blot - Human PSME1 knockout HEK-293T cell line (AB266192)
  • WB

Lab

Western blot - Human PSME1 knockout HEK-293T cell line (AB266192)

Lanes 1-4 : Merged signal (red and green). Green - ab155091 observed at 29 kDa. Red - loading control ab8245 observed at 36 kDa.

ab155091 Anti-PSME1 antibody [EPR10967(B)] was shown to specifically react with PSME1 in wild-type HEK-293T cells. Loss of signal was observed when knockout cell line ab266192 (knockout cell lysate ab257613) was used. Wild-type and PSME1 knockout samples were subjected to SDS-PAGE. ab155091 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4° at 1 in 1000 dilution and 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye® 680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.

All lanes:

Western blot - Anti-PSME1 antibody [EPR10967(B)] (<a href='/en-us/products/primary-antibodies/psme1-antibody-epr10967b-ab155091'>ab155091</a>) at 1/1000 dilution

Lane 1:

Wild-type HEK-293T (Human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate at 20 µg

Lane 2:

PSME1 knockout HEK-293T (Human epithelial cell line from embryonic kidney transformed with large T antigen) whole cell lysate at 20 µg

Lane 2:

Western blot - Human PSME1 knockout HEK-293T cell line (ab266192)

Lane 3:

MCF7 (Human breast adenocarcinoma cell line) whole cell lysate at 20 µg

Lane 4:

Jurkat (Human T cell leukemia cell line from peripheral blood) whole cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-irdye-800cw-preadsorbed-ab216773'>ab216773</a>) at 1/10000 dilution

Predicted band size: 29 kDa

Observed band size: 29 kDa

false

Sanger Sequencing - Human PSME1 knockout HEK-293T cell line (AB266192)
  • Sanger seq

Unknown

Sanger Sequencing - Human PSME1 knockout HEK-293T cell line (AB266192)

Homozygous : 14 bp deletion in exon 3

Cell Culture - Human PSME1 knockout HEK-293T cell line (AB266192)
  • Cell Culture

Lab

Cell Culture - Human PSME1 knockout HEK-293T cell line (AB266192)

Representative images PSME1 knockout HEK293T cells, low and high confluency examples (top left and right respectively) and wild-type HEK293T cells, low and high confluency (bottom left and right respectively) showing typical adherent, epithelial-like morphology. Images were captured at 10X magnification using a EVOS M5000 microscope.

Key facts

Cell type

HEK-293T

Species or organism

Human

Tissue

Kidney

Form

Liquid

form

Knockout validation

Sanger Sequencing,Western blot

Mutation description

Knockout achieved by using CRISPR/Cas9, Homozygous: 14 bp deletion in exon 3

Reactivity data

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Product details

Recommended control: Human wild-type HEK293T cell line (ab255449). Please note a wild-type cell line is not automatically included with a knockout cell line order, if required please add recommended wild-type cell line at no additional cost using the code WILDTYPE-TMTK1.

We will provide viable cells that proliferate on revival.

This product is subject to limited use licenses from The Broad Institute and ERS Genomics Limited, and is developed with patented technology. For full details of the limited use licenses and relevant patents please refer to our limited use license and patent pages.

What's included?

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Properties and storage information

Gene name
PSME1
Gene editing type
Knockout
Gene editing method
CRISPR technology
Knockout validation
Sanger Sequencing, Western blot
Zygosity
Homozygous
Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-196°C
Appropriate long-term storage conditions
-196°C

Handling procedures

Initial handling guidelines

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.

Subculture guidelines
  • All seeding densities should be based on cell counts gained by established methods.
  • A guide seeding density of 2x104 cells/cm2 is recommended.
  • Cells should be passaged when they have achieved 80-90% confluence.
Culture medium

DMEM (High Glucose) + 10% FBS

Cryopreservation medium

Cell Freezing Medium-DMSO Serum free media, contains 8.7% DMSO in MEM supplemented with methyl cellulose.

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

PSME1 also known as PA28α (proteasome activator complex subunit 1) is a protein that functions as a regulatory component of the 20S proteasome. It has a molecular weight of approximately 28 kDa. This protein is expressed in various tissues with noticeable expression in immune-related tissues such as the spleen and thymus. PSME1 binds to proteasome core particles and modifies their activity by opening access to their catalytic core honing the degradation of ubiquitinated proteins.
Biological function summary

PSME1 modulates protein degradation processes and participates as a component of the immunoproteasome. The immunoproteasome is a complex that processes peptides for presentation on MHC class I molecules vital for immune response. This involvement transforms PSME1 into an important player in antigen processing and presentation influencing T-cell activation and immune surveillance. PSME1 affects immune system adaptability and efficiency impacting infection response and immune regulation.

Pathways

PSME1 is a significant participant in the ubiquitin-proteasome system and the MHC class I antigen processing pathway. It directly interacts with other proteasome components like the catalytic 20S core and the 11S regulator. The interplay with these proteins steers the precision and output of antigenic peptides essential for T-cell mediated immune recognition. By influencing these pathways PSME1 links the protein degradation machinery to adaptive immunity.

PSME1 has connections to autoimmune diseases and cancers. Alterations in its function or expression can disrupt regular proteasome activity leading to improper immune responses such as in autoimmune pathologies like systemic lupus erythematosus. Furthermore PSME1's role in antigen processing intersects with other proteins such as TAP1 affecting immune evasion strategies seen in certain cancers. These interactions suggest that PSME1 is a contributor in both immune-related health issues and cancer progression.

Quality control

STR analysis

CSF1PO, D13S317, D7S820, D5S818, TH01, D16S539, TPOX

Cell culture

Biosafety level

EU: 2 US: 2

Adherent/suspension

Adherent

Gender

Female

Product protocols

Product promise

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