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Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
Applications:

WB

REACTIVITY:

M R

SENSITIVITY:

Endogenous

MW (kDa):

125, 142

SOURCE:

Rabbit

UniProt ID:

#Q8C052

Entrez-Gene Id:

270058

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

MAP1S Antibody recognizes endogenous levels of total MAP1S protein.

Species Reactivity:

Mouse, Rat

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Arg499 of mouse MAP1S protein. Antibodies are purified by peptide affinity chromatography.

Background

MAP1S is a member of the microtubule-associated protein (MAP) family. There are at least ten proteins in the MAP family, including MAP1A, MAP1B, MAP1S, MAP2, MAP6, MAP7, MAP9, Tau, DCLK, and DCX. MAP1 subfamily members express predominantly in brain cells regulating several physiological processes in cells, including cytoskeleton regulation that, in some cases are energy-dependent, including the autophosphorylation and phosphorylation of other MAP family members, and other cytoskeletal proteins (1,2). MAP1 family members have been identified as high-molecular-weight proteins consisting of the full-length (FL), at least one heavy chain (HC), one light chain (LC), and, in some members short chains (SC) (2,3). The FL-MAP1S is formed by the HC and LC, forming the active MAP1S complex. The LC binds, bundles, and stabilizes microtubules, and the HC regulates LC activity (2). MAP1S also interacts with Nemitin (neuronal enriched MAP interacting protein), enhancing cytoskeleton regulation (4).

MAP1S contributes to mitochondria stabilization by interacting with mitochondrion-associated leucine-rich PPR-motif containing protein (LRPPRC). MAP1S regulates ubiquitination processes like autophagosome biogenesis and protein clearance. These processes are MAP1S isoform-specific (5). An increased level of MAP1S enhances autophagy to remove p62-associated aggresomes and dysfunctional organelles that trigger DNA double-strand breaks and genome instability (6).

  1. Ramkumar, A. et al. (2018) Dev Dyn 247, 138-155.
  2. Tegha-Dunghu, J. et al. (2014) J Cell Sci 127, 5007-13.
  3. Orbán-Németh, Z. et al. (2005) J Biol Chem 280, 2257-65.
  4. Wang, W. et al. (2012) PLoS One 7, e33094.
  5. Xie, R. et al. (2011) J Biol Chem 286, 10367-77.
  6. Liu, L. et al. (2012) Autophagy 8, 278-80.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting

Cross-Reactivity Key

H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

Trademarks and Patents

Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
XP is a registered trademark of Cell Signaling Technology, Inc.
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Limited Uses

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