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FLASH GENE
Symbol SPAG9 contributors: mct - updated : 29-05- 201
HGNC name sperm associated antigen 9
HGNC id 14524
DNA
TYPE functioning gene
STRUCTURE 158.70 kb     30 Exon(s)
10 Kb 5' upstream gene genomic sequence study
motif repetitive sequence   other
text structure and other palindromic sequences
MAPPING cloned Y linked N status provisional
RNA
TRANSCRIPTS type messenger
identificationnb exonstypebpproduct
ProteinkDaAAspecific expressionYearPubmed
30 - 8273 - 1321 - 2009 1635647
29 - 8231 - 1307 - 2009 1635647
- - 7940 - 1177 - 2009 1635647
- - 8243 - 1311 - 2009 1635647
EXPRESSION
Type restricted
   expressed in (based on citations)
organ(s)
SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
Reproductivemale systemtestis   
cells
SystemCellPubmedSpeciesStageRna symbol
Lymphoid/Immuneactivated B lymphocyte Mus musculus
Reproductivespermatid
cell lineage
cell lines
fluid/secretion
at STAGE
PROTEIN
PHYSICAL PROPERTIES
STRUCTURE
motifs/domains
  • N terminal extracellular leucine zipper motif and multiple repeats (five direct, three mirror)
  • three unique palindromic motifs
  • transmembrane helical domain
  • coiled coil, leucine zipper domain, essential for dimerization and proper localization
  • C terminal cytoplasmic domain
  • HOMOLOGY
    interspecies homolog to Drosophila sunday driver
    intraspecies homolog to MAPK8IP1
    homolog to MAPK8IP3
    Homologene
    FAMILY
  • JNK-interacting protein family
  • CATEGORY antigen
    SUBCELLULAR LOCALIZATION     plasma membrane
        intracellular
    intracellular,cytoplasm,cytosolic,vesicle
    basic FUNCTION
  • mediating the axonal transport of at least 1 class of vesicles by interacting directly with kinesin light chain
  • sperm-associated JNK-binding protein, having a functional role in sperm-egg fusion
  • involvement of SPAG9 mediated signal transduction pathways in reproductive processes
  • its expression may play a role in cellular growth and thyroid carcinogenesis
  • may have a role in tumor development and early spread and thus could serve as a novel target for early detection and for cancer immunotherapy
  • acts together with MAPK8IP3 to promote presynaptic assembly
  • novel role of a scaffolding protein SPAG9 in the regulation of surface CD40 expression and fine-tuning of dendritic cells function
  • MAPK8IP3 and SPAG9 are critical and functionally redundant in cytokinesis and control ARF6 localization to the midbody by forming a tripartite complex of MAPK8IP3/SPAG9, active ARF6, and kinesin-1
  • novel role of SPAG9 scaffold protein in the bridging of CD40LG-triggered CD40 internalization and CD40-dependent signaling in splenic B lymphocytes
  • MAPK8IP3, SPAG9 are positive regulators of kinesin-1-dependent axonal transport, which prevents neuronal degeneration
  • SPAG9 and MAPK8IP3 play critical roles in kinesin-1-dependent axonal transport, which prevents brain neuronal degeneration
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    a component
    INTERACTION
    DNA
    RNA
    small molecule
    protein
  • interacting with KLC1 as a binding partner for the second leucine zipper domain (involves leucine zipper-like domains and support the role of motor proteins in the spatial regulation of signaling modules)
  • novel target protein of the active form of ARF6
  • MAPK8IP3, SPAG9 which might be paralogous to each other, are critical and functionally redundant in cytokinesis and control ARF6 localization to the midbody by forming a tripartite complex of MAPK8IP3/SPAG9, active ARF6, and kinesin-1
  • PLK1 binding to SPAG9 was found in G2 phase and mitosis, and PLK1 binding was self-primed by PLK1 phosphorylation of SPAG9
  • cell & other
    REGULATION
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
  • new type of endometrial cancer markers for early detection, diagnosis and treatment
  • Therapy target
    SystemTypeDisorderPubmed
    cancerhemopathy 
    potential of SPAG9 as a biomarker and immunotherapeutic target for early treatment of chronic myeloid leukemia -chronic phase patients
    cancerendocrinethyroid
    diagnostic biomarker as well as a possible therapeutic target in thyroid cancer treatment
    ANIMAL & CELL MODELS