Component of the post-replicative DNA mismatch repair system (MMR).
Forms two different heterodimers: MutS alpha (MSH2-MSH6 heterodimer) and MutS beta (MSH2-MSH3 heterodimer) which binds to DNA mismatches thereby initiating DNA repair.
When bound, heterodimers bend the DNA helix and shields ~20 base pairs.
MutS alpha recognizes single base mismatches and dinucleotide insertion-deletion loops (IDL) in the DNA.
MutS beta recognizes larger insertion-deletion loops up to 13 nucleotides long.
After mismatch binding, MutS alpha or beta forms a ternary complex with the MutL alpha heterodimer, which is thought to be responsible for directing the downstream MMR events, including strand discrimination, excision, and resynthesis.
ATP binding and hydrolysis play a pivotal role in mismatch repair functions.
The ATPase activity associated with MutS alpha regulates binding similar to a molecular switch: mismatched DNA provokes ADP-->ATP exchange, resulting in a discernible conformational transition that converts MutS alpha into a sliding clamp capable of hydrolysis-independent diffusion along the DNA backbone.
This transition is crucial for mismatch repair.
MutS alpha may also play a role in DNA homologous recombination repair.
In melanocytes may modulate both UV-B-induced cell cycle regulation and apoptosis.
Applications:Suitable for use in Western Blot, Immunohistochemistry.
Other applications not tested.
Recommended Dilution:Western Blot: 1:500-1:2000Immunohistochemistry: 1:50-1:200Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:100ul
Host:rabbit
Source Antibody:human
Grade:Affinity Purified
Purity:Purified by immunoaffinity chromatography.
Form:Supplied as a liquid PBS, 0.1% sodium azide, 50% glycerol.
Specificity:Recognizes endogenous levels of MSH2. Species Crossreactivity: Human, mouse, rat