Key features and details
- Rabbit polyclonal to MBNL1
- Suitable for: IHC-P, ICC/IF, WB
- Reacts with: Human
- Isotype: IgG
Product nameAnti-MBNL1 antibody
See all MBNL1 primary antibodies
DescriptionRabbit polyclonal to MBNL1
Tested applicationsSuitable for: IHC-P, ICC/IF, WBmore details
Species reactivityReacts with: Human
Predicted to work with: Mouse, Rat
- Recombinant Human MBNL1 protein (ab114825) can be used as a positive control in WB. This antibody gave a positive signal in the following Human Lysates: Jurkat Whole Cell Jurkat Nuclear Lysate Human sketelal muscle FFPE tissue sections
This product was previously labelled as Muscleblind-like 1
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
Storage bufferpH: 7.40
Preservative: 0.02% Sodium azide
Batches of this product that have a concentration < 1mg/ml may have BSA added as a stabilising agent. If you would like information about the formulation of a specific lot, please contact our scientific support team who will be happy to help.
Concentration information loading...
PurityImmunogen affinity purified
Our Abpromise guarantee covers the use of ab45899 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|IHC-P||Use a concentration of 5 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.|
|ICC/IF||Use a concentration of 1 µg/ml.|
|WB||Use a concentration of 1 µg/ml. Detects a band of approximately 35,40,42 kDa (predicted molecular weight: 35,40,42 kDa).|
FunctionMediates pre-mRNA alternative splicing regulation. Acts either as activator or repressor of splicing on specific pre-mRNA targets. Inhibits cardiac troponin-T (TNNT2) pre-mRNA exon inclusion but induces insulin receptor (IR) pre-mRNA exon inclusion in muscle. Antagonizes the alternative splicing activity pattern of CELF proteins. Regulates the TNNT2 exon 5 skipping through competition with U2AF2. Inhibits the formation of the spliceosome A complex on intron 4 of TNNT2 pre-mRNA. Binds to the stem-loop structure within the polypyrimidine tract of TNNT2 intron 4 during spliceosome assembly. Binds to the 5'-YGCU(U/G)Y-3'consensus sequence. Binds to the IR RNA. Binds to expanded CUG repeat RNA, which folds into a hairpin structure containing GC base pairs and bulged, unpaired U residues.
Tissue specificityHighly expressed in cardiac, skeletal muscle and during myoblast differentiation. Weakly expressed in other tissues (at protein level). Expressed in heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas.
Involvement in diseasePlays a role in the pathogenesis of dystrophia myotonica type 1 (DM1) [MIM:160900]. A muscular disorder characterized by myotonia, muscle wasting in the distal extremities, cataract, hypogonadism, defective endocrine functions, male baldness and cardiac arrhythmias. Note=In muscle cells from DM1 patients, MBNL1 is sequestered by DMPK RNAs containing CUG triplet repeat expansions. MBNL1 binding is proportional to repeat length consistent with the direct correlation between the length of repeat expansion and disease severity.
Sequence similaritiesBelongs to the muscleblind family.
Contains 4 C3H1-type zinc fingers.
Cellular localizationNucleus. Cytoplasm. Cytoplasmic granule. Localized with DDX1, TIAL1 and YBX1 in stress granules upon stress. Localized in the cytoplasm of multinucleated myotubes. Colocalizes with nuclear foci of retained expanded-repeat transcripts in myotubes from patients affected by myotonic dystrophy.
- Information by UniProt
- EXP antibody
- EXP35 antibody
- EXP40 antibody
ICC/IF image of ab45899 stained MCF-7 cells. The cells were fixed with 4% PFA (10 min) and then incubated in 1%BSA / 10% normal Goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab45899 at 1µg/ml) overnight at +4°C. The secondary antibody (green) was Alexa Fluor® 488 Goat anti-Rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue). This antibody also gave a positive result in 4% PFA fixed (10 min) HepG2 cells at 1µg/ml.
All lanes : Anti-MBNL1 antibody (ab45899) at 1 µg/ml
Lane 1 : Jurkat (Human T cell lymphoblast-like cell line) Whole Cell Lysate
Lane 2 : Jurkat nuclear extract lysate (ab14844)
Lysates/proteins at 10 µg per lane.
All lanes : Goat polyclonal to Rabbit IgG - H&L - Pre-Adsorbed (HRP) at 1/3000 dilution
Performed under reducing conditions.
Predicted band size: 35,40,42 kDa
Observed band size: 35,40,42 kDa why is the actual band size different from the predicted?
Additional bands at: 110 kDa, 52 kDa. We are unsure as to the identity of these extra bands.
ab45899 recognises all three known isoforms to MBNL1
IHC image of ab45899 staining in human skeletal muscle formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab45899, 5µg/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.
For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.
ab45899 has been referenced in 3 publications.
- Jain A & Vale RD RNA phase transitions in repeat expansion disorders. Nature 546:243-247 (2017). ICC/IF ; Human . PubMed: 28562589
- Zu T et al. RAN Translation Regulated by Muscleblind Proteins in Myotonic Dystrophy Type 2. Neuron 95:1292-1305.e5 (2017). PubMed: 28910618
- Sharma A et al. Calcium-mediated histone modifications regulate alternative splicing in cardiomyocytes. Proc Natl Acad Sci U S A 111:E4920-8 (2014). PubMed: 25368158