High affinity nerve growth factor receptor

spinqualitylabelsall models Glycosylated human TrkA (cyan and green) complex with nerve growth factor (yellow and magenta) (PDB code 2ifg) Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Function High affinity nerve growth factor receptor (TrkA) is a tyrosine kinase receptor. Trk stands for Topomyosin-Related Kinase. TrkA ligand - nerve growth factor activates the receptor by stabilizing homodimer formation which initiates transautophosphorylation. See also Neurotrophin. Relevance TrkA has a role in the pathogenesis of psoriasis and its inhibitors are studied in the development of novel therapeutics for the disease. TrkA inhibition may be a novel therapeutic approach to Alzheimer disease and a new method to treat intractable pain. Structural highlights Structure of Nerve Growth Factor Complexed with the Extracellular Domain of TrkA. An Arg residue, conserved in all neutrophins, forms the most important binding determinant between TrkA and its ligand - nerve growth factor - which forms the active homodimer of the receptor, . All interactions between TrkA chain A and NGF.

3D structures of high affinity nerve growth factor receptor

Updated on 26-August-2025

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• High affinity nerve growth factor receptor; Domains – nerve growth factor-binding 36-383; D5 – 281-382; transmembrane 410-447; catalytic+juxtamembrane 376-698; kinase 498-796
  • tyrosine kinase receptor – hTrkA residues 282-413 – human
    
  • Neurotrophin – hTrkA transmembrane domain – NMR
    
  • 4crp – hTrkA nerve growth factor-binding domain (mutant) – NMR
    
  • 4f0i, 4gt5 – hTrkA kinase domain
    
  • 5kvt, 5wr7 – hTrkA kinase domain + anticancer drug
    
  • 4aoj, 4pmm, 4pmp, 4pms, 4pmt, 4yne, 4yps, 5h3q, 6dkb, 6dkg, 6dki, 6dkw, 6iqn, 6j5l, 6npt, 6nsp, 6nss, 6pl1, 6pl2, 6pl3, 6pl4, 7xaf, 7xbi, 8j61, 8j63 – hTrkA kinase domain + inhibitor
    
  • 8j5w, 8j5x – hTrkA kinase domain (mutant) + inhibitor
    
  • 5i8a, 5jfs, 5jfv, 5jfw, 5jfx, 5kmj, 5kmk, 5kml, 5kmm, 5kmn, 5kmo, 6d1y, 6d1z, 6d20, 6pma, 6pmb, 6pmc, 6pme – hTrkA catalytic+juxtamembrane domains + inhibitor
    
  • 2ifg – hTrkA nerve growth factor-binding domain + nerve growth factor
    
  • 7n3t – hTrkA nerve growth factor-binding domain + TrkA-binding miniprotein
    
  • 8ytd, 8yte – hTrkA D5 domain + cyclic peptide
    

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