• Nature

Associated products


Our Abpromise guarantee covers the use of ab4961 in the following tested applications.

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

  • Applications


  • Form
  • Additional notes

    This peptide may be used for neutralization and control experiments with the polyclonal antibody that reacts with this product and human CASK, catalog ab3383. Using a solution of peptide of equal volume and concentration to the corresponding antibody will yield a large molar excess of peptide (~ 70-fold) for competitive inhibition of antibody-protein binding reactions.

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped 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.

General Info

  • Alternative names
    • CAGH39
    • Caki
    • Calcium/calmodulin dependent serine protein kinase
    • Calcium/calmodulin dependent serine protein kinase (MAGUK family)
    • Calcium/calmodulin dependent serine protein kinase membrane associated guanylate kinase
    • Calcium/calmodulin-dependent serine protein kinase
    • CAMGUK
    • CAMGUK protein
    • CAMGUK, drosophila, homolog of
    • casK
    • CMG
    • DXPri1
    • DXRib1
    • FGS4
    • FLJ22219
    • FLJ31914
    • hCASK
    • LIN 2
    • Lin 2 homolog
    • LIN2
    • Lin2 homolog
    • MICPCH
    • MRXSNA
    • Pals3
    • Peripheral plasma membrane protein CASK
    • Protein lin-2 homolog
    • TNRC8
    • Trinucleotide repeat containing 8
    • Vertebtate LIN2 homolog
    see all
  • Function
    Multidomain scaffolding protein with a role in synaptic transmembrane protein anchoring and ion channel trafficking. Contributes to neural development and regulation of gene expression via interaction with the transcription factor TRB1. Binds to cell-surface proteins, including amyloid precursor protein, neurexins and syndecans. May mediate a link between the extracellular matrix and the actin cytoskeleton via its interaction with syndecan and with the actin/spectrin-binding protein 4.1.
  • Tissue specificity
    Ubiquitous. Expression is significantly greater in brain relative to kidney, lung, and liver and in fetal brain and kidney relative to lung and liver.
  • Involvement in disease
    Defects in CASK are the cause of mental retardation X-linked CASK-related (MRXCASK) [MIM:300749]. Mental retardation is characterized by significantly below average general intellectual functioning associated with impairments in adaptative behavior and manifested during the developmental period. Patients with mental retardation X-linked CASK-related can manifest a severe phenotype consisting of severe intellectual deficit, congenital or postnatal microcephaly, disproportionate brainstem and cerebellar hypoplasia (MICPCH Syndrome). A milder phenotype consists of mental retardation alone or associated with nystagmus.
    Defects in CASK are the cause of FG syndrome type 4 (FGS4) [MIM:300422]. FG syndrome (FGS) is an X-linked disorder characterized by mental retardation, relative macrocephaly, hypotonia and constipation.
  • Sequence similarities
    In the N-terminal section; belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. CaMK subfamily.
    Belongs to the MAGUK family.
    Contains 1 guanylate kinase-like domain.
    Contains 2 L27 domains.
    Contains 1 PDZ (DHR) domain.
    Contains 1 protein kinase domain.
    Contains 1 SH3 domain.
  • Domain
    The first L27 domain binds DLG1 and the second L27 domain probably binds LIN7.
    The protein kinase domain mediates the interaction with FCHSD2.
  • Cellular localization
    Nucleus. Cytoplasm. Cell membrane.
  • Information by UniProt

References for CASK peptide (ab4961)

ab4961 has not yet been referenced specifically in any publications.

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