Revision 1
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, IHC-P

REACTIVITY:

H M R Mk

SENSITIVITY:

Endogenous

MW (kDa):

24

Source/Isotype:

Rabbit IgG

UniProt ID:

#Q9H8S9, #Q7L9L4

Entrez-Gene Id:

55233, 92597

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:1000
Immunohistochemistry (Paraffin) 1:50

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

Specificity / Sensitivity

Phospho-MOB1 (Thr35) (D2F10) Rabbit mAb recognizes endogenous levels of MOB1 protein only when phosphorylated at Thr35.

Species Reactivity:

Human, Mouse, Rat, Monkey

Species predicted to react based on 100% sequence homology

Hamster, Chicken, Xenopus, Zebrafish, Bovine, Horse, Guinea Pig

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Thr35 of human MOB1 protein.

Background

MOB1 was first identified in yeast as a protein that binds to Mps with essential roles in the completion of mitosis and the maintenance of ploidy (1). Its Drosophila and mammalian homologs, Mats and MOB1, respectively, are involved in the Hippo signaling tumor suppressor pathway, which plays a critical role in organ size regulation and which has been implicated in cancer development (2-5). There are two MOB1 proteins in humans, MOB1A and MOB1B, that are encoded by two different genes but which have greater than 95% amino acid sequence identity (6). Both forms bind to members of the nuclear Dbf2-related (NDR) kinases, such as LATS1/2 and NDR1/2, thereby stimulating kinase activity (7-9). This binding is promoted by the phosphorylation of MOB1 at several threonine residues (e.g., Thr12, Thr35) by MST1 and/or MST2 (5,10).
Phosphorylation at Thr35 by MST1/2 stabilizes MOB1, enhancing its binding and regulation of LATS1 (5). The resultant increase in LATS1 kinase activity promotes inhibitory phosphorylation of the transcriptional co-activators YAP and TAZ (11,12), leading to changes in the expression of genes involved in cell cycle progression (13).

  1. Luca, F.C. and Winey, M. (1998) Mol Biol Cell 9, 29-46.
  2. Edgar, B.A. (2006) Cell 124, 267-73.
  3. Saucedo, L.J. and Edgar, B.A. (2007) Nat Rev Mol Cell Biol 8, 613-21.
  4. Harvey, K. and Tapon, N. (2007) Nat Rev Cancer 7, 182-91.
  5. Zeng, Q. and Hong, W. (2008) Cancer Cell 13, 188-92.
  6. Praskova, M. et al. (2008) Curr Biol 18, 311-21.
  7. Devroe, E. et al. (2004) J Biol Chem 279, 24444-51.
  8. Hergovich, A. et al. (2005) Mol Cell Biol 25, 8259-72.
  9. Hergovich, A. et al. (2006) Biochem Biophys Res Commun 345, 50-8.
  10. Hirabayashi, S. et al. (2008) Oncogene 27, 4281-92.
  11. Zhao, B. et al. (2007) Genes Dev 21, 2747-61.
  12. Lei, Q.Y. et al. (2008) Mol Cell Biol 28, 2426-36.
  13. Hao, Y. et al. (2008) J Biol Chem 283, 5496-509.

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 IHC-P: Immunohistochemistry (Paraffin)

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.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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