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05-429 Anti-phospho-MBP Antibody, clone P12

100 µg  
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      Key Specifications Table

      Species ReactivityKey ApplicationsHostFormatAntibody Type
      VrtEnzyme Assays, WBMPurifiedMonoclonal Antibody
      Catalogue Number05-429
      Brand Family Upstate
      Trade Name
      • Upstate
      DescriptionAnti-phospho-MBP Antibody, clone P12
      Background InformationMyelin basic protein (MBP) is the major extrinsic membrane protein of central nervous system and has a molecular mass of 21.5 kDa. MBP is believed to be important in the process of myelination of nerves in the central nervous system (CNS). MBP was initially sequenced in 1979 after isolation from myelin membranes. Since that time, knockout mice deficient in MBP have been developed which showed decreased amounts of CNS myelination and a progressive disorder characterized by tremors, seizures, and early death. The gene for MBP is on chromosome 18; the protein localizes to the CNS and to various cells of the hematopoietic system.
      The pool of MBP in the central nervous system is very diverse, with several splice variants being expressed and a large number of post-translational modifications on the protein, which include phosphorylation, methylation, deamidation and citrullination. MBP phosphorylation at Threonine 125 is a complex regulatory process that modulates the contribution of MBP to the stability of the Myelin sheath.
      Interest in MBP has centered on its role in demyelinating diseases, particularly multiple sclerosis (MS). Several studies have shown a role for antibodies against MBP in the pathogenesis of MS. Some studies have linked a genetic predisposition to MS to the MBP gene, though a majority have not.
      Product Information
      • Mouse brain extract or rat brain extract
      PresentationProtein G Purified immunoglobulin in Protein A Purified immunoglobulin in 30% glycerol, PBS, and 0.09% sodium azide as a preservative.
      Quality LevelMQ100
      ApplicationDetect phospho-MBP using this Anti-phospho-MBP Antibody, clone P12 validated for use in EA & WB.
      Key Applications
      • Enzyme Assays
      • Western Blotting
      Biological Information
      ImmunogenSynthetic peptide corresponding to the human myelin basic protein sequence phosphorylated at Thr98 and coupled to tuberculin
      SpecificityRecognizes MBP phosphorylated at Threonine 98; Some preparations of MBP contain basal levels of phosphorylated MBP, which are detected by the pMBP antibody.
      Species Reactivity
      • Vertebrates
      Antibody TypeMonoclonal Antibody
      Entrez Gene Number
      Entrez Gene SummaryThe protein encoded by the classic MBP gene is a major constituent of the myelin sheath of oligodendrocytes and Schwann cells in the nervous system. However, MBP-related transcripts are also present in the bone marrow and the immune system. These mRNAs arise from the long MBP gene (otherwise called "Golli-MBP") that contains 3 additional exons located upstream of the classic MBP exons. Alternative splicing from the Golli and the MBP transcription start sites gives rise to 2 sets of MBP-related transcripts and gene products. The Golli mRNAs contain 3 exons unique to Golli-MBP, spliced in-frame to 1 or more MBP exons. They encode hybrid proteins that have N-terminal Golli aa sequence linked to MBP aa sequence. The second family of transcripts contain only MBP exons and produce the well characterized myelin basic proteins. This complex gene structure is conserved among species suggesting that the MBP transcription unit is an integral part of the Golli transcription unit and that this arrangement is important for the function and/or regulation of these genes.
      Gene Symbol
      • MBP
      • MGC99675
      • Phosphorylation
      Purification MethodProtein A Purfied
      UniProt Number
      UniProt SummaryFUNCTION: SwissProt: P02686 # The classic group of MBP isoforms (isoform 4-isoform 14) are with PLP the most abundant protein components of the myelin membrane in the CNS. They have a role in both its formation and stabilization. The smaller isoforms might have an important role in remyelination of denuded axons in multiple sclerosis. The non- classic group of MBP isoforms (isoform 1-isoform 3/Golli-MBPs) may preferentially have a role in the early developing brain long before myelination, maybe as components of transcriptional complexes, and may also be involved in signaling pathways in T- cells and neural cells. Differential splicing events combined to optional post-translational modifications give a wide spectrum of isomers, each of them having maybe a specialized function. Induces T-cell proliferation.
      SIZE: 304 amino acids; 33117 Da
      SUBUNIT: Homodimer; isoform 3 exists as a homodimer.
      SUBCELLULAR LOCATION: Myelin membrane; Peripheral membrane protein; Cytoplasmic side. Note=Cytoplasmic side of myelin.
      TISSUE SPECIFICITY: MBP isoforms are found in both the central and the peripheral nervous system, whereas Golli-MBP isoforms are expressed in fetal thymus, spleen and spinal cord, as well as in cell lines derived from the immune system.DEVELOPMENTAL STAGE: Expression turns on abruptly in fetus of 14 to 16 weeks. Even smaller isoforms seem to be produced during embryogenesis, some of these persisting in the adult. Expression of isoform MBP2 is more evident at 16 weeks and its relative proportion declined thereafter.
      PTM: Several charge isomers of MBP; C1 (the most cationic, least modified, and most abundant form), C2, C3, C4, C5, C6, C7, C8-A and C8-B (the least cationic form); are produced as a result of optional PTM, such as phosphorylation, deamidation of glutamine or asparagine, arginine citrullination and methylation. C8-A and C8-B contain each two mass isoforms termed C8-A(H), C8-A(L), C8-B(H) and C8-B(L), (H) standing for higher and (L) for lower molecular weight. C3, C4 and C5 are phosphorylated. The ratio of methylated arginine residues decreases in aging, making the protein more cationic. & The N-terminal alanine is acetylated (isoform 3, isoform 4, isoform 5 and isoform 6). & Arg-241 was found to be 6% monomethylated and 60% symmetrically dimethylated.
      DISEASE: SwissProt: P02686 # The reduction in the surface charge of citrullinated and/or methylated MBP could result in a weakened attachment to the myelin membrane. This mechanism could be operative in demyelinating diseases such as chronical multiple sclerosis (MS), and fulminating MS (Marburg disease).
      SIMILARITY: SwissProt: P02686 ## Belongs to the myelin basic protein family.
      Molecular Weight33 kDa
      Physicochemical Information
      Materials Information
      Toxicological Information
      Safety Information according to GHS
      Safety Information
      Product Usage Statements
      Quality Assuranceroutinely evaluated by immunoblot on MBP phosphorylated by MAP Kinase 2/Erk2, active (Catalog #14-173)
      Usage Statement
      • Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
      Storage and Shipping Information
      Storage ConditionsMaintain for 2 years at -20°C from date of shipment. Aliquot to avoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
      Packaging Information
      Material Size100 µg
      Transport Information
      Supplemental Information


      Anti-phospho-MBP Antibody, clone P12 SDS


      Safety Data Sheet (SDS) 

      Anti-phospho-MBP Antibody, clone P12 Certificates of Analysis

      TitleLot Number
      Anti-phospho-MBP, clone P12 2465150
      Anti-phospho-MBP, clone P12 3046801
      Anti-phospho-MBP, clone P12 - 2392217 2392217
      Anti-phospho-MBP, clone P12 - 16177 16177
      Anti-phospho-MBP, clone P12 - 18249 18249
      Anti-phospho-MBP, clone P12 - 19671 19671
      Anti-phospho-MBP, clone P12 - 21087 21087
      Anti-phospho-MBP, clone P12 - 21318 21318
      Anti-phospho-MBP, clone P12 - 21555 21555
      Anti-phospho-MBP, clone P12 - 2191935 2191935

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      Product Families


      Life Science Research > Antibodies and Assays > Primary Antibodies