• Product name
  • Description
    Rabbit polyclonal to Bif
  • Host species
  • Tested applications
    Suitable for: WB, IHC-P, ICCmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse
  • Immunogen

    Synthetic peptide conjugated to KLH, corresponding to 15 amino acids from the C terminal region of Human Bif (NP_057093.1).

  • Positive control
    • Human placenta and heart tissues.



Our Abpromise guarantee covers the use of ab117108 in the following tested applications.

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

Application Abreviews Notes
WB Use at an assay dependent concentration. Predicted molecular weight: 41 kDa.
IHC-P Use a concentration of 2.5 µg/ml. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
ICC Use at an assay dependent concentration.


  • Function
    May be required for normal outer mitochondrial membrane dynamics (PubMed:15452144). Required for coatomer-mediated retrograde transport in certain cells (By similarity). May recruit other proteins to membranes with high curvature. May promote membrane fusion (PubMed:11604418). Involved in activation of caspase-dependent apoptosis by promoting BAX/BAK1 activation (PubMed:16227588). Isoform 1 acts proapoptotic in fibroblasts (By similarity). Involved in caspase-independent apoptosis during nutrition starvation and involved in the regulation of autophagy. Activates lipid kinase activity of PIK3C3 during autophagy probably by associating with the PI3K complex II (PI3KC3-C2) (PubMed:17891140). Associated with PI3KC3-C2 during autophagy may regulate the trafficking of ATG9A from the Golgi complex to the peripheral cytoplasm for the formation of autophagosomes by inducing Golgi membrane tubulation and fragmentation (PubMed:21068542). Involved in regulation of degradative endocytic trafficking and cytokinesis, probably in the context of PI3KC3-C2 (PubMed:20643123). Isoform 2 acts antiapoptotic in neuronal cells; involved in maintenance of mitochondrial morphology and promotes neuronal viability.
  • Tissue specificity
    Highly expressed in heart, skeletal muscle, kidney and placenta. Detected at lower levels in brain, colon, thymus, spleen, liver, small intestine, lung and peripheral blood leukocytes.
  • Sequence similarities
    Belongs to the endophilin family.
    Contains 1 BAR domain.
    Contains 1 SH3 domain.
  • Domain
    An N-terminal amphipathic helix, the BAR domain and a second amphipathic helix inserted into helix 1 of the BAR domain (N-BAR domain) induce membrane curvature and bind curved membranes.
    The SH3 domain is required and sufficient for the interaction with UVRAG.
  • Post-translational
    Phosphorylated at Thr-145 by CDK5; this phosphorylation is required for autophagy induction in starved neurons and facilitates homodimerization.
  • Cellular localization
    Cytoplasm. Golgi apparatus membrane. Mitochondrion outer membrane. Cytoplasmic vesicle, autophagosome membrane. Midbody. Association with the Golgi apparatus depends on the cell type (By similarity). Following starvation colocalizes with ATG5 and LC3 autophagy-related protein(s)on autophagosomal membranes (PubMed:17891140).
  • Information by UniProt
  • Database links
  • Alternative names
    • Bax interacting factor 1 antibody
    • Bax-interacting factor 1 antibody
    • Bif 1 antibody
    • Bif-1 antibody
    • CGI 61 antibody
    • dJ612B15.2 antibody
    • Endophilin B1 antibody
    • Endophilin-B1 antibody
    • PPP1R70 antibody
    • Protein phosphatase 1 regulatory subunit 70 antibody
    • SH3 containing protein SH3GLB1 antibody
    • SH3 domain GRB2 like endophilin B1 antibody
    • SH3 domain-containing GRB2-like protein B1 antibody
    • Sh3glb1 antibody
    • SH3p13 antibody
    • SHLB1_HUMAN antibody
    see all


  • ab117108 at 2.5 µg/ml staining Bif in Formalin-fixed, Paraffin-embedded Human Placenta tissue by Immunohistochemistry followed by biotinylated secondary antibody, alkaline phosphatase-streptavidin and chromogen.
  • ab117108 at 2.5 µg/ml staining Bif in Formalin-fixed, Paraffin-embedded Human Heart tissue by Immunohistochemistry followed by biotinylated secondary antibody, alkaline phosphatase-streptavidin and chromogen.


ab117108 has not yet been referenced specifically in any publications.

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