GTPase Kras Polyclonal Antibody (E-AB-40639)
For research use only.
| Verified Samples |
Verified Samples in WB: Hela, Mouse heart, Rat heart, Rat skeletal muscle |
| Dilution | WB 1:1000-1:2000 |
| Isotype | IgG |
| Host | Rabbit |
| Reactivity | Human, Mouse, Rat |
| Applications | WB |
| Clonality | Polyclonal |
| Immunogen | Recombinant Human KRAS protein expressed by E.coli. |
| Abbre | KRAS |
| Synonyms | GTPase Kras, K-Ras 2, KRAS, KRAS2, Ki-Ras, RASK2, c-K-ras, c-Ki-ras |
| Swissprot | |
| Calculated MW | 21 kDa |
| Observed MW |
21 kDa
Western blotting is a method for detecting a certain protein in a complex sample based on the specific binding of antigen and antibody. Different proteins can be divided into bands based on different mobility rates. The mobility is affected by many factors, which may cause the observed band size to be inconsistent with the expected size. The common factors include: 1. Post-translational modifications: For example, modifications such as glycosylation, phosphorylation, methylation, and acetylation will increase the molecular weight of the protein. 2. Splicing variants: Different expression patterns of various mRNA splicing bodies may produce proteins of different sizes. 3. Post-translational cleavage: Many proteins are first synthesized into precursor proteins and then cleaved to form active forms, such as COL1A1. 4. Relative charge: the composition of amino acids (the proportion of charged amino acids and uncharged amino acids). 5. Formation of multimers: For example, in protein dimer, strong interactions between proteins can cause the bands to be larger. However, the use of reducing conditions can usually avoid the formation of multimers. If a protein in a sample has different modified forms at the same time, multiple bands may be detected on the membrane. |
| Cellular Localization | Cell membrane, Cytoplasm, cytosol. |
| Concentration | 1 mg/mL |
| Buffer | PBS with 0.05% proclin 300, 1% protective protein and 50% glycerol,pH7.4 |
| Purification Method | Antigen Affinity Purification |
| Research Areas | Cancer, Epigenetics and Nuclear Signaling, Signal Transduction |
| Conjugation | Unconjugated |
| Storage | Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles. |
| Shipping | The product is shipped with ice pack,upon receipt,store it immediately at the temperature recommended. |
| background | KRAS,also called p21,is a member of the Ras superfamily of proteins. It is located on human chromosome 12,and contains four coding exons and a 5' non-coding exon (PMID: 12778136). KRAS is a membrane-anchored guanosine triphosphate/guanosine diphosphate (GTP/GDP)-binding protein and is widely expressed in most human cells. Like other members of the Ras family,the KRAS protein is a GTPase,and it is involved in intracellular signal transduction and mainly responsible for EGFR-signaling activation (PMID: 19117687). KRAS mutations have been found in various malignancies,including lung adenocarcinoma,mucinous adenoma,ductal carcinoma of the pancreas and colorectal carcinoma. |
Other Clones
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Other Formats
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Unconjugated
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