• NatureRecombinant
  • SourceBaculovirus infected Sf9 cells
  • Amino Acid Sequence
    • AccessionQ96L34
    • SpeciesHuman
    • Molecular weight104 kDa including tags
    • Amino acids1 to 752


Our Abpromise guarantee covers the use of ab105211 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Biological activityThe Specific activity of ab105211 was determined to be 1050 nmol/min/mg.
  • Applications

    Western blot

    Functional Studies


  • Purity> 90 % SDS-PAGE.
    Purity was determined to be >90% by densitometry.
  • FormLiquid
  • Additional notes

    ab204854 (Cdc25C peptide) can be utilized as a substrate for assessing kinase activity

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped on dry ice. Upon delivery aliquot and store at -80ºC. Avoid freeze / thaw cycles.

    Preservative: None
    Constituents: 25% Glycerol, 50mM Tris HCl, 150mM Sodium chloride, 10mM Glutathione, 0.25mM DTT, 0.1mM EDTA, 0.1mM PMSF, pH 7.5

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

General Info

  • Alternative names
    • FLJ90097
    • KIAA1860
    • MAP / microtubule affinity regulating kinase 4
    • MAP / microtubule affinity regulating kinase 4L
    • MAP/microtubule affinity regulating kinase 4
    • MAP/microtubule affinity regulating kinase like 1
    • MAP/microtubule affinity-regulating kinase 4
    • MAP/microtubule affinity-regulating kinase-like 1
    • MARK 4
    • MARK 4L
    • MARK L1
    • MARK4
    • MARK4 serine / threonine protein kinase
    • MARK4 serine/threonine protein kinase
    • MARK4S
    • MARKL 1
    • MARKL1
    • Nbla00650
    • Putative protein product of Nbla00650
    see all
  • FunctionSerine/threonine-protein kinase (PubMed:15009667, PubMed:14594945, PubMed:23666762, PubMed:23184942). Phosphorylates the microtubule-associated protein MAPT (PubMed:14594945, PubMed:23666762). Also phosphorylates the microtubule-associated proteins MAP2 and MAP4 (PubMed:14594945). Involved in regulation of the microtubule network, causing reorganization of microtubules into bundles (PubMed:14594945, PubMed:25123532). Required for the initiation of axoneme extension during cilium assembly (PubMed:23400999). Regulates the centrosomal location of ODF2 and phosphorylates ODF2 in vitro (PubMed:23400999). Plays a role in cell cycle progression, specifically in the G1/S checkpoint (PubMed:25123532). Reduces neuronal cell survival (PubMed:15009667). Plays a role in energy homeostasis by regulating satiety and metabolic rate (By similarity). Promotes adipogenesis by activating JNK1 and inhibiting the p38MAPK pathway, and triggers apoptosis by activating the JNK1 pathway (By similarity). Phosphorylates mTORC1 complex member RPTOR and acts as a negative regulator of the mTORC1 complex, probably due to disruption of the interaction between phosphorylated RPTOR and the RRAGA/RRAGC heterodimer which is required for mTORC1 activation (PubMed:23184942).
  • Tissue specificityUbiquitous. Isoform 2 is brain-specific (PubMed:11326310). Expressed at highest levels in brain and testis. Also expressed in heart, lung, liver, muscle, kidney and spleen (PubMed:14594945).
  • Sequence similaritiesBelongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. SNF1 subfamily.
    Contains 1 KA1 (kinase-associated) domain.
    Contains 1 protein kinase domain.
    Contains 1 UBA domain.
  • Developmental stageExpressed at all stages of the mitotic cell cycle.
  • Post-translational
    Ubiquitinated with 'Lys-29'- and 'Lys-33'-linked polyubiquitins which appear to impede LKB1-mediated phosphorylation. Deubiquitinated by USP9X.
    Phosphorylated at Thr-214 by STK11/LKB1 in complex with STE20-related adapter-alpha (STRADA) pseudo kinase and CAB39 (PubMed:14976552). Phosphorylated throughout the cell cycle (PubMed:25123532).
  • Cellular localizationCytoplasm, cytoskeleton, microtubule organizing center, centrosome. Cytoplasm, cytoskeleton, microtubule organizing center. Cytoplasm, cytoskeleton, cilium basal body. Cytoplasm, cytoskeleton, cilium axoneme. Cytoplasm. Localized at the tips of neurite-like processes in differentiated neuroblast cells. Detected in the cytoplasm and neuropil of the hippocampus.
  • Information by UniProt

Recombinant human MARK4 protein images

  • SDS-PAGE showing ab105211 at approximately 104kDa.
  • The Specific activity of ab105211 was determined to be 1050 nmol/min/mg.

References for Recombinant human MARK4 protein (ab105211)

ab105211 has not yet been referenced specifically in any publications.

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