GeneTex
United States (US)

MSH2 antibody [N3C2], Internal

GTX124132_40639_20170825_WB_Y_competitor_watermark_18121410_198.jpg

Cat No. GTX124132

Host Rabbit
Clonality Polyclonal
Isotype IgG
Application WB
Reactivity Yeast
APPLICATION

Application Note

*Optimal dilutions/concentrations should be determined by the researcher.
Application Dilution
WB 1:500-1:3000
Not tested in other applications.

Calculated MW

109 kDa. ( Note )

Positive Control

Yeast lysate
PROPERTIES

Form

Liquid

Buffer

1XPBS, 1% BSA, 20% Glycerol (pH7). 0.01% Thimerosal was added as a preservative.

Storage

Store as concentrated solution. Centrifuge briefly prior to opening vial. For short-term storage (1-2 weeks), store at 4ºC. For long-term storage, aliquot and store at -20ºC or below. Avoid multiple freeze-thaw cycles.

Concentration

1mg/ml

Antigen Species

Yeast

Immunogen

Recombinant protein encompassing a sequence within the center region of Saccharomyces cerevisiae S288c MSH2. The exact sequence is proprietary.

Purification

Purified by antigen-affinity chromatography.

Conjugation

Unconjugated

Note

For laboratory use only. Not for any clinical, therapeutic, or diagnostic use in humans or animals. Not for animal or human consumption.
TARGET

Synonyms

Msh2p antibody

Cellular Localization

Nucleus

Background

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 bind to DNA mismatches thereby initiating DNA repair. MSH2 seems to act as a scaffold for the other MutS homologs that provide substrate-binding and substrate-specificity. When bound, heterodimers bend the DNA helix and shield approximately 20 base pairs. MutS alpha acts mainly to repair base-base and single insertion-deletion mismatches that occur during replication, but can also repair longer insertion-deletion loops (IDLs), although with decreasing efficiency as the size of the extrahelical loop increases. MutS beta acts mainly to repair IDLs from 2 to 13 nucleotides in size, but can also repair base-base and single insertion-deletion mismatches. After mismatch binding, MutS alpha or beta form a ternary complex with a MutL 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. Both subunits bind ATP, but with differing affinities, and their ATPase kinetics are also very different. MSH6 binds and hydrolyzes ATP rapidly, whereas MSH2 catalyzes ATP at a substantially slower rate. Binding to a mismatched base pair suppresses MSH6-catalyzed ATP hydrolysis, but not the activity of MSH2. ATP binding to both subunits is necessary to trigger a change in MutS alpha interaction with mismatched DNA, converting MutS alpha into a sliding clamp capable of hydrolysis-independent movement along DNA, and also facilitates formation of ternary complexes containing MutS and MutL proteins and the mismatch. MutS beta also has a role in regulation of heteroduplex formation during mitotic and meiotic recombination. MutS beta binds to DNA flap structures predicted to form during recombination, and is required for 3' non-homologous tail removal (NHTR). MutS beta-binding alters the DNA conformation of its substrate at the ds/ssDNA junction and may facilitate its recognition and/or cleavage by the downstream nucleotide excision repair (NER) RAD1-RAD10 endonuclease.
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Database

Research Area

DATA IMAGES
GTX124132_40639_20170825_WB_Y_competitor_watermark_18121410_198.jpg

GTX124132 WB Image

Whole cell extract (10 µg) was separated by 7.5% SDS-PAGE, and the membranes were blotted with MSH2 antibody (GTX124132) diluted at 1:3000 and competitor's antibody (sc-494) diluted at 1:500. The HRP-conjugated anti-rabbit IgG antibody (GTX213110-01) was used to detect the primary antibody.
*The competitor is not affiliated with GeneTex and does not endorse this product.

SDS
PBS.pdf
Glycerol.pdf
Thimerosal.pdf