Brain-derived neurotrophic factor (P23560)

Uniprot ID P23560
Protein Name Brain-derived neurotrophic factor
Gene Name BDNF
Species Homo sapiens (Human)
Signal peptide(a) Y Secretome P(b) 0.865
Function Important signaling molecule that activates signaling cascades downstream of NTRK2 (PubMed:11152678). During development, promotes the survival and differentiation of selected neuronal populations of the peripheral and central nervous systems. Participates in axonal growth, pathfinding and in the modulation of dendritic growth and morphology. Major regulator of synaptic transmission and plasticity at adult synapses in many regions of the CNS. The versatility of BDNF is emphasized by its contribution to a range of adaptive neuronal responses including long-term potentiation (LTP), long-term depression (LTD), certain forms of short-term synaptic plasticity, as well as homeostatic regulation of intrinsic neuronal excitability. .[BDNF precursor form]: Important signaling molecule that activates signaling cascades downstream of NTRK2. Activates signaling cascades via the heterodimeric receptor formed by NGFR and SORCS2 (PubMed:24908487, PubMed:29909994). Signaling via NGFR and SORCS2 plays a role in synaptic plasticity and long-term depression (LTD). Binding to NGFR and SORCS2 promotes neuronal apoptosis. Promotes neuronal growth cone collapse (By similarity). {ECO:0000250|UniProtKB:P21237, ECO:0000269|PubMed:24908487, ECO:0000269|PubMed:29909994}.
GO - Molecular function
  • growth factor activity : IBA:GO_Central
GO - Biological process
  • activation of phospholipase C activity : TAS:Reactome
  • axon guidance : TAS:BHF-UCL
  • brain-derived neurotrophic factor receptor signaling pathway : TAS:BHF-UCL
  • collateral sprouting : IDA:BHF-UCL
  • memory : IBA:GO_Central
  • modulation of chemical synaptic transmission : IBA:GO_Central
  • negative regulation of apoptotic signaling pathway : ISS:ARUK-UCL
  • negative regulation of myotube differentiation : ISS:ParkinsonsUK-UCL
  • negative regulation of neuron apoptotic process : IBA:GO_Central
  • nerve development : IBA:GO_Central
  • nerve growth factor signaling pathway : IBA:GO_Central
  • nervous system development : TAS:ProtInc
  • neuron projection morphogenesis : IBA:GO_Central
  • neurotrophin TRK receptor signaling pathway : TAS:Reactome
  • peripheral nervous system development : IBA:GO_Central
  • positive regulation of brain-derived neurotrophic factor receptor signaling pathway : TAS:BHF-UCL
  • positive regulation of collateral sprouting : IDA:BHF-UCL
  • positive regulation of neuron projection development : ISS:ARUK-UCL
  • positive regulation of non-membrane spanning protein tyrosine kinase activity : TAS:Reactome
  • positive regulation of receptor binding : IDA:ParkinsonsUK-UCL
  • positive regulation of synapse assembly : IDA:BHF-UCL
  • regulation of neuron differentiation : IBA:GO_Central
  • regulation of protein localization to cell surface : TAS:ParkinsonsUK-UCL
  • synapse assembly : IDA:BHF-UCL
  • transmembrane receptor protein tyrosine kinase signaling pathway : IBA:GO_Central
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(a) The Signal peptide D-score cutoff for "YES"(having signal peptide) is 0.45.
(b) Non-classically secreted proteins should obtain an NN-score(Neural Networks score) exceeding the normal threshold of 0.5, but not at the same time be predicted to contain a signal peptide.