PSEN1 Polyclonal Antibody
- +1
Price: $ 530
Price: $ 320
Price: $ 200
- Host: Rabbit
- Reactivity: Human;Mouse;Rat
- Applications: WB;IHC
For research use only. Order now, ship in 3 days
Verified Samples |
Verified Samples in WB:U87-MG Verified Samples in IHC:Human breast cancer,Human stomach |
Dilution |
WB 1:500-1:2000, IHC 1:50-1:200 Western Blot Operation Guide |
Clonality | Polyclonal |
Immunogen | Recombinant fusion protein of human PSEN1 (NP_015557.2). |
Abbre | PSEN1 |
Synonyms | AD3;FAD;PS-1;PS1;S182;Presenilin 1;PSEN1 |
Swissprot | |
Calculated MW | 21kDa/42kDa/46kDa/48kDa/52kDa |
Observed MW |
52kDa
The actual band is not consistent with the expectation.
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 | Endoplasmic reticulum membrane. Golgi apparatus membrane. Cell surface. Bound to NOTCH1 also at the cell surface. Colocalizes with CDH1/2 at sites of cell-cell contact. Colocalizes with CTNNB1 in the endoplasmic reticulum and the proximity of the plasma membrane. Also present in azurophil granules of neutrophils. |
Concentration | 1mg/mL |
Buffer | PBS with 0.02% sodium azide, 50% glycerol, pH7.3. |
Purification Method | Affinity purification |
Research Areas | Cancer; Metabolism; Neuroscience; Signal Transduction |
Conjugation | Unconjugated |
Storage | Store at -20°C Valid for 12 months. Avoid freeze / thaw cycles. |
Shipping | Ice bag |
background | Alzheimer's disease (AD) patients with an inherited form of the disease carry mutations in the presenilin proteins (PSEN1; PSEN2) or in the amyloid precursor protein (APP). These disease-linked mutations result in increased production of the longer form of amyloid-beta (main component of amyloid deposits found in AD brains). Presenilins are postulated to regulate APP processing through their effects on gamma-secretase, an enzyme that cleaves APP. Also, it is thought that the presenilins are involved in the cleavage of the Notch receptor, such that they either directly regulate gamma-secretase activity or themselves are protease enzymes. Several alternatively spliced transcript variants encoding different isoforms have been identified for this gene, the full-length nature of only some have been determined. |