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FLASH GENE
Symbol SH2D2A contributors: mct - updated : 06-04-2014
HGNC name SH2 domain protein 2A
HGNC id 10821
EXPRESSION
Type
   expressed in (based on citations)
organ(s)
SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
blood / hematopoieticspleen    
 thymus    
tissue
SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
Blood / Hematopoietic    
Lymphoid    
cells
SystemCellPubmedSpeciesStageRna symbol
Blood/Hematopoieticleukocyte
Lymphoid/ImmuneB cell Mus musculus
Lymphoid/ImmuneT cell Mus musculusFetal
cell lineage
cell lines
fluid/secretion
at STAGE
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • a N terminal SRC homology 2 domain
  • putative SH3 domain
  • two phosphotyrosine binding sites (NPXY motifs)
  • lacking a catalytic domain
  • conjugated PhosphoP
    HOMOLOGY
    Homologene
    FAMILY T-cell-specific adapter (TSAd) proteins family
    CATEGORY adaptor , signaling
    SUBCELLULAR LOCALIZATION     intracellular
    intracellular,cytoplasm
    basic FUNCTION
  • adaptor protein involved in T cell signaling
  • SH2D2A and HSH2D are adaptors related by structure and sequence, coexpressed in T cells
  • SH2D2A and HSH2D have nonredundant functions in lymphocytes
  • its expression of SH2D2A is important for proper activation of T-cells
  • adapter protein playing key roles in intracellular signal transduction through complex formation with catalytically active signaling molecules
  • promote migration of Jurkat T cells through interaction with the G protein beta subunit
  • required for VEGF-induced, SRC-mediated regulation of endothelial cell junctions and for vascular permeability
  • possible modulatory role for SH2D2A in T cell mediated immune surveillance of cancer
  • modulates signaling downstream of the T cell receptor (TCR)
  • contains several protein interaction domains, and is merging as a modulator of T cell activation
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
    INTERACTION
    DNA
    RNA
    small molecule
    protein
  • interacts with SMAD2 and SMAD3
  • upon TCR plus integrin costimulation, SH2D2A associates with RPSA and mediates T lymphocyte migration
  • required for tyrosine phosphorylation of the LCK substrate ITK
  • through its interaction with both ITK and LCK, primes ITK for LCK mediated phosphorylation and thereby regulates CXCL12 induced T cell migration and actin cytoskeleton rearrangements
  • KDR induces SRC signaling and vascular permeability in vivo via the adaptor protein SH2D2A
  • novel interactions between the SH2D2A SH2 domain and CD6 phosphotyrosine (pTyr)629 and linker of activated T cells (LAT) pTyr171 , pTyr191 and pTyr226
  • cell & other
    REGULATION
    induced by induced after T cell activation
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Susceptibility
  • to Guillain-Barré syndrome
  • multiple sclerosis
  • Variant & Polymorphism other association with a homozygous genotype for a low repeat number of tandem GA in the SH2D2A gene in Guillain-Barré syndrome
    Candidate gene
    Marker
    Therapy target
    ANIMAL & CELL MODELS
  • Tsad-deficient murine thymocytes failed to respond to CXCL12 with increased Itk phosphorylation, and displayed reduced actin polymerization and cell migration responses