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FLASH GENE
Symbol RALBP1 contributors: mct - updated : 08-10-2015
HGNC name ralA binding protein 1
HGNC id 9841
Location 18p11.22      Physical location : 9.475.529 - 9.538.105
Synonym name
  • dinitrophenyl-S-glutathione (DNG-SG) ATPase
  • Ral-interacting protein 76
  • Synonym symbol(s) RLIP76, RLIP1, RIP1
    DNA
    TYPE functioning gene
    STRUCTURE 62.58 kb     10 Exon(s)
    10 Kb 5' upstream gene genomic sequence study
    MAPPING cloned Y linked N status provisional
    RNA
    TRANSCRIPTS type messenger
    identificationnb exonstypebpproduct
    ProteinkDaAAspecific expressionYearPubmed
    10 - 4368 - 655 - 2008 18983828
    EXPRESSION
    Type widely
       expressed in (based on citations)
    organ(s)
    SystemOrgan level 1Organ level 2Organ level 3Organ level 4LevelPubmedSpeciesStageRna symbol
    Digestivemouth   highly
    Endocrineneuroendocrinepituitary  highly
    Nervousnervecranial nerve  highly
    tissue
    SystemTissueTissue level 1Tissue level 2LevelPubmedSpeciesStageRna symbol
    Connectivebone  highly
    cell lineage
    cell lines
    fluid/secretion
    at STAGE
    PROTEIN
    PHYSICAL PROPERTIES
    STRUCTURE
    motifs/domains
  • N terminal alpha helical region, GAP-like (GTPase activating protein) domain,
  • RAL-binding region
  • a RHO-GAP domain
  • a C terminal region
  • HOMOLOGY
    Homologene
    FAMILY
    CATEGORY enzyme , signaling
    SUBCELLULAR LOCALIZATION     plasma membrane
        intracellular
    intracellular,cytoplasm,cytosolic
    intracellular,nucleus
    basic FUNCTION
  • multi-functional ATPase that couples the movement of substances with ATP-hydrolysis
  • involved in the transport of glutathione conjugating and xenobiotics potentially contributing to multidrug resistance
  • mediating vinorelbine transport and capable of conferring drug accumulation defect and resistance to lung cancer cells
  • plays a prominent anti-apoptotic role selectively in cancer cells
  • involved in certain cellular functions including membrane plasticity and movement (as a primary 'effector' in the Ral pathway, perhaps functioning as a GTPase activating protein, or GAP), and as a component of clathrin-coated pit-mediated receptor-ligand endocytosis-a process that mediates movement of membrane vesicles
  • multifunctional transporter protein that serves as an energy-dependent efflux mechanism for endogenously generated toxic metabolites as well as exogenous toxins, including chemotherapy drugs
  • induced by oxidative stress, and could play a role in insulin resistance seen in pathological conditions characterized by increased oxidative stress
  • necessary for metastasis of cancer cell lines
  • RALA and RALBP1 regulate mitochondrial fission at mitosis
  • disruption of its ATPase function impaired invadopodium formation
  • is a modular protein capable of participating in many cellular functions
  • REPS1, and RALBP1 are present early during embryonic development, but they are active only at the end of gastrulation
  • required for angiogenesis and for efficient neovascularization of primary solid tumors
  • CELLULAR PROCESS
    PHYSIOLOGICAL PROCESS
    PATHWAY
    metabolism
    signaling
    bridging Ras and Rho pathways through a putative cascade composed of RAS-RALGDS-RALA/B -> RALBP1-CDC42/Rac1/Rho
    a component
    INTERACTION
    DNA
    RNA
    small molecule
    protein
  • binding to activate RALA and RALB
  • GAP for Rac1 and CDC42
  • interacts with REPS1 and REPS2
  • CDK1 bind to RALBP1 during mitosis, such that endocytosis is inhibited (increased expression of CDK1 inhibits transport function of RALBP1 and promotes apoptosis)
  • NMDAR activation stimulates RALA, which binds and translocates widespread RALBP1 to synapses
  • interacts with GTP-bound Ral proteins
  • RALBP1, an effector of Ral involved in receptor-mediated endocytosis and in the regulation of actin dynamics during embryonic development, also interacts with REPS1
  • CYTH2 interaction with the RALBP1 N-terminus regulates cell spreading and motility via PI3K and ARF6, independent of RALBP1 control of RAC1
  • RALBP1 acts as a scaffold at recycling endosomes by binding activated RAS, recruiting CYTH2 to activate ARF6, thereby contributing to cell spreading and migration
  • cell & other
    REGULATION
    induced by oxidative stress
    ASSOCIATED DISORDERS
    corresponding disease(s)
    Other morbid association(s)
    TypeGene ModificationChromosome rearrangementProtein expressionProtein Function
    constitutional     --low  
    confers sensitivity to xenobiotics and radiation due to the loss of a common transport mechanism for glutathione–electrophile conjugates and xenobiotics
    Susceptibility
    Variant & Polymorphism
    Candidate gene
    Marker
    Therapy target
    SystemTypeDisorderPubmed
    diabetemetabolic syndrom 
    novel target for single-molecule therapeutics for metabolic syndrome
    ANIMAL & CELL MODELS
  • RlipP76(-/-) mice are hypoglycemic
  • inhibition of Rlip76 function by antibody or its depletion by small interfering RNA or antisense DNA caused marked and sustained regression of established human kidney xenografts of Caki-2 cells in nude mouse