Product: Phospho-MuSK (Tyr755) Antibody
Catalog: AF7108
Description: Rabbit polyclonal antibody to Phospho-MuSK (Tyr755)
Application: WB IHC
Cited expt.: WB
Reactivity: Human, Mouse, Rat
Prediction: Pig, Zebrafish, Bovine, Horse, Sheep, Chicken, Xenopus
Mol.Wt.: 97kDa; 97kD(Calculated).
Uniprot: O15146
RRID: AB_2843548

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Product Info

Source:
Rabbit
Application:
WB 1:500-1:2000, IHC 1:50-1:200
*The optimal dilutions should be determined by the end user. For optimal experimental results, antibody reuse is not recommended.
*Tips:

WB: For western blot detection of denatured protein samples. IHC: For immunohistochemical detection of paraffin sections (IHC-p) or frozen sections (IHC-f) of tissue samples. IF/ICC: For immunofluorescence detection of cell samples. ELISA(peptide): For ELISA detection of antigenic peptide.

Reactivity:
Human,Mouse,Rat
Prediction:
Pig(100%), Zebrafish(80%), Bovine(100%), Horse(100%), Sheep(100%), Chicken(100%), Xenopus(100%)
Clonality:
Polyclonal
Specificity:
Phospho-MuSK (Tyr755) Antibody detects endogenous levels of MuSK only when phosphorylated at Tyr755.
RRID:
AB_2843548
Cite Format: Affinity Biosciences Cat# AF7108, RRID:AB_2843548.
Conjugate:
Unconjugated.
Purification:
The antibody is from purified rabbit serum by affinity purification via sequential chromatography on phospho-peptide and non-phospho-peptide affinity columns.
Storage:
Rabbit IgG in phosphate buffered saline , pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol. Store at -20 °C. Stable for 12 months from date of receipt.
Alias:

Fold/Unfold

CMS9; FADS; MDK 4; MDK4; MGC126323; MGC126324; Muscle; Muscle associated receptor tyrosine kinase; Muscle skeletal receptor tyrosine kinase; Muscle skeletal receptor tyrosine protein kinase; Muscle specific kinase receptor; Muscle specific tyrosine kinase receptor; Muscle specific tyrosine protein kinase receptor; Muscle-specific kinase receptor; Muscle-specific tyrosine-protein kinase receptor; MuSK; MUSK_HUMAN; Neural fold somite kinase 1; Neural fold somite kinase 2; Neural fold somite kinase 3; Neural fold somite kinase1; Neural fold somite kinase2; Neural fold somite kinase3; Nsk 1; Nsk 2; Nsk 3; Nsk1; Nsk2; Nsk3; Receptor tyrosine kinase MuSK; Skeletal muscle receptor tyrosine kinase; skeletal receptor tyrosine-protein kinase;

Immunogens

Immunogen:

A synthesized peptide derived from human MuSK around the phosphorylation site of Tyr755.

Uniprot:
Gene(ID):
Sequence:
MRELVNIPLVHILTLVAFSGTEKLPKAPVITTPLETVDALVEEVATFMCAVESYPQPEISWTRNKILIKLFDTRYSIRENGQLLTILSVEDSDDGIYCCTANNGVGGAVESCGALQVKMKPKITRPPINVKIIEGLKAVLPCTTMGNPKPSVSWIKGDSPLRENSRIAVLESGSLRIHNVQKEDAGQYRCVAKNSLGTAYSKVVKLEVEVFARILRAPESHNVTFGSFVTLHCTATGIPVPTITWIENGNAVSSGSIQESVKDRVIDSRLQLFITKPGLYTCIATNKHGEKFSTAKAAATISIAEWSKPQKDNKGYCAQYRGEVCNAVLAKDALVFLNTSYADPEEAQELLVHTAWNELKVVSPVCRPAAEALLCNHIFQECSPGVVPTPIPICREYCLAVKELFCAKEWLVMEEKTHRGLYRSEMHLLSVPECSKLPSMHWDPTACARLPHLDYNKENLKTFPPMTSSKPSVDIPNLPSSSSSSFSVSPTYSMTVIISIMSSFAIFVLLTITTLYCCRRRKQWKNKKRESAAVTLTTLPSELLLDRLHPNPMYQRMPLLLNPKLLSLEYPRNNIEYVRDIGEGAFGRVFQARAPGLLPYEPFTMVAVKMLKEEASADMQADFQREAALMAEFDNPNIVKLLGVCAVGKPMCLLFEYMAYGDLNEFLRSMSPHTVCSLSHSDLSMRAQVSSPGPPPLSCAEQLCIARQVAAGMAYLSERKFVHRDLATRNCLVGENMVVKIADFGLSRNIYSADYYKANENDAIPIRWMPPESIFYNRYTTESDVWAYGVVLWEIFSYGLQPYYGMAHEEVIYYVRDGNILSCPENCPVELYNLMRLCWSKLPADRPSFTSIHRILERMCERAEGTVSV

Predictions

Predictions:

Score>80(red) has high confidence and is suggested to be used for WB detection. *The prediction model is mainly based on the alignment of immunogen sequences, the results are for reference only, not as the basis of quality assurance.

Species
Results
Score
Pig
100
Horse
100
Bovine
100
Sheep
100
Xenopus
100
Chicken
100
Zebrafish
80
Dog
0
Rabbit
0
Model Confidence:
High(score>80) Medium(80>score>50) Low(score<50) No confidence

Research Backgrounds

Function:

Receptor tyrosine kinase which plays a central role in the formation and the maintenance of the neuromuscular junction (NMJ), the synapse between the motor neuron and the skeletal muscle. Recruitment of AGRIN by LRP4 to the MUSK signaling complex induces phosphorylation and activation of MUSK, the kinase of the complex. The activation of MUSK in myotubes regulates the formation of NMJs through the regulation of different processes including the specific expression of genes in subsynaptic nuclei, the reorganization of the actin cytoskeleton and the clustering of the acetylcholine receptors (AChR) in the postsynaptic membrane. May regulate AChR phosphorylation and clustering through activation of ABL1 and Src family kinases which in turn regulate MUSK. DVL1 and PAK1 that form a ternary complex with MUSK are also important for MUSK-dependent regulation of AChR clustering. May positively regulate Rho family GTPases through FNTA. Mediates the phosphorylation of FNTA which promotes prenylation, recruitment to membranes and activation of RAC1 a regulator of the actin cytoskeleton and of gene expression. Other effectors of the MUSK signaling include DNAJA3 which functions downstream of MUSK. May also play a role within the central nervous system by mediating cholinergic responses, synaptic plasticity and memory formation (By similarity).

PTMs:

Ubiquitinated by PDZRN3. Ubiquitination promotes endocytosis and lysosomal degradation (By similarity).

Phosphorylated (By similarity). Phosphorylation is induced by AGRIN in a LRP4-dependent manner (By similarity). Autophosphorylated. Autophosphorylation at Tyr-554 is required for interaction with DOK7 which in turn stimulates the phosphorylation and the activation of MUSK (By similarity).

Neddylated.

Subcellular Location:

Cell junction>Synapse>Postsynaptic cell membrane>Single-pass type I membrane protein.
Note: Colocalizes with acetylcholine receptors (AChR) to the postsynaptic cell membrane of the neuromuscular junction.

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionSubcellular location
Family&Domains:

Belongs to the protein kinase superfamily. Tyr protein kinase family.

References

1). Sorting nexin 17 increases low-density lipoprotein receptor-related protein 4 membrane expression: A novel mechanism of acetylcholine receptor aggregation in myasthenia gravis. Frontiers in immunology, 2022 (PubMed: 36311763) [IF=5.7]

Application: WB    Species: Mouse    Sample:

Figure 2 SNX17 knockdown decreased cell surface LRP4 expression, MuSK phosphorylation, and AChR aggregation. (A) Cell lysates were immunoprecipitated with antibodies against SNX17, LRP4, or control IgG. The LRP4 and SNX17 proteins in immunoprecipitation and input were analyzed by western blotting. (B) Western blotting and qPCR detection of SNX17 protein (n = 3/group) and mRNA (n = 9/group) expression, respectively, in lentivirus-infected cells. (C) Myotube cells were treated with 10 μg/mL anti-LRP4 antibody for 30 min to induce internalization of LRP4 protein on the membrane, following which the anti-LRP4 antibody was removed and the cells were cultured for 30 min, and then the content of LRP4 protein in the membrane protein was analyzed by Western Blotting. n = 3/group. (D) Myotube cells were treated with 10 μg/mL anti-LRP4 antibody for 30 min, after which the anti-LRP4 antibody was removed, the cells were incubated with 10 ng/mL Agrin for 16 h, and the expression of MuSK and p-MuSK in total protein was analyzed by Western Blotting. n = 3/group. (E) AChR clusters (red) on lentivirus-infected C2C12 myotubes were labeled with R-BTX after application of separate or mixed Agrin and anti-LRP4 antibody, the nuclei were stained with DAPI (blue), and the number of AChR clusters on myotubes was counted and the length of AChR clusters was analyzed by ImageJ software. n = 3/group; Scale bar = 50 μm. * represents SNX17 KD-con vs. SNX17 KD, # represents -LRP4 antibody vs. +LRP4 antibody. All data are presented as mean ± SEM. *P

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