Product nameHuman COL4A2 knockout HeLa cell lysate
Cell line information
Parental cell line: HeLa
Organism: Homo sapiens
Gene editing information
Editing tool: CRISPR/Cas9
Mutation: Homozygous: 110 bp insertion in exon 17.
Knockout validation: Confirmed by Sanger sequencing.
Reconstitution instructions: To use as a WB control, resuspend in 45 µL of Sample buffer (40% (w/v) Glycerol, 4% (w/v) Lithium Dodecyl Sulfate, 4% Ficoll 400, 0.025% Phenol Red, 0.025% Brilliant Blue G250, 2 mM EDTA) and 5 µL of DTT to resuspend @ 2mg/ml. Mix well, then boil the sample for 10 minutes before loading it onto the gel.
User storage instructions: Upon receiving, lysate can be diluted with 1 x SDS sample buffer & will be stable at -20°C for 12 months. Long term storage at -80°C.
Knockout validationSanger Sequencing
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It is the responsibility of our customers to check the necessity of application of REACH Authorisation, and any other relevant authorisations, for their intended uses.
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.
Storage instructionsStore at -80°C. Please refer to protocols.
Components 1 kit Human COL4A2 knockout HeLa cell lysate (Lyophilized) 1 x 100µg Human Wild Type HeLa cell lysate (Lyophilized) 1 x 100µg
FunctionType IV collagen is the major structural component of glomerular basement membranes (GBM), forming a 'chicken-wire' meshwork together with laminins, proteoglycans and entactin/nidogen.
Canstatin, a cleavage product corresponding to the collagen alpha 2(IV) NC1 domain, possesses both anti-angiogenic and anti-tumor cell activity. It inhibits proliferation and migration of endothelial cells, reduces mitochondrial membrane potential, and induces apoptosis. Specifically induces Fas-dependent apoptosis and activates procaspase-8 and -9 activity. Ligand for alphavbeta3 and alphavbeta5 integrins.
Sequence similaritiesBelongs to the type IV collagen family.
Contains 1 collagen IV NC1 (C-terminal non-collagenous) domain.
DomainAlpha chains of type IV collagen have a non-collagenous domain (NC1) at their C-terminus, frequent interruptions of the G-X-Y repeats in the long central triple-helical domain (which may cause flexibility in the triple helix), and a short N-terminal triple-helical 7S domain.
modificationsProlines at the third position of the tripeptide repeating unit (G-X-Y) are hydroxylated in some or all of the chains.
Type IV collagens contain numerous cysteine residues which are involved in inter- and intramolecular disulfide bonding. 12 of these, located in the NC1 domain, are conserved in all known type IV collagens.
The trimeric structure of the NC1 domains is stabilized by covalent bonds between Lys and Met residues.
Proteolytic processing produces the C-terminal NC1 peptide, canstatin.
Cellular localizationSecreted > extracellular space > extracellular matrix > basement membrane.
- Information by UniProt
- COL4A 2
To our knowledge, customised protocols are not required for this product. Please try the standard protocols listed below and let us know how you get on.
ab263161 has not yet been referenced specifically in any publications.