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0NTRK3_HUMAN*   SwissProt (?) | Description Local Annotation Link Reference
General Information
NameNTRK3
DescriptionNt-3 growth factor receptor precursor (ec 2.7.1.112) (neurotrophic tyrosine kinase receptor type 3) (trkc tyrosine kinase) (gp145-trkc) (trk-c).
SpeciesHomo sapiens (NCBI taxonomy ID: 9606)
GO0005887 integral to plasma membrane (TAS)
0043121 neurotrophin binding (TAS)
0007169 transmembrane receptor protein tyrosine kin... (TAS)

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schematic display of those terms with internal associations, click the node and browse the corresponding GO term
Domain Architecture (Details)
InterPro domains unassigned to SynO:
Protein kinases comprise a large family of enzymes that mediate the response of eukaryotic cells to external stimuli by phosphorylation of hydroxyamino acids. The enzymes fall into two broad classes.haracterised with respect to substrate specificity: serine/threonine specific and tyrosine specific . Tyrosine phosphorylating activity was originally detected in two viral transforming proteins .ut many retroviral transforming proteins and their cellular counterparts have since been shown to possess such activity. The growth factor receptors.hich are activated by ligand binding.nd theinsulin-related peptide receptor.re also family members.
  IPR001245:Tyrosine protein kinase
Leucine-rich repeats (LRR.ee ) consist of 2-45 motifs of 20-30 amino acids in length that generally folds into an arc or horseshoe shape . LRRs occur in proteins ranging from viruses to eukaryotes.nd appear to provide a structural framework for the formation of protein-protein interactions . Proteins containing LRRs include tyrosine kinase receptors.ell-adhesion molecules.irulence factors.nd extracellular matrix-binding glycoproteins.nd are involved in a variety of biological processes.ncluding signal transduction.ell adhesion.NA repair.ecombination.ranscription.NA processing.isease resistance.poptosis.nd the immune response.LRRs are often flanked by cysteine-rich domains: an N-terminal LRR domain () and a C-terminal LRR domain. This entry represents the C-terminal LRR domain.
  IPR000483:Cysteine-rich flanking region, C-terminal
The basic structure of immunoglobulin (Ig) molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda.ach composed of a constant domain (CL) and a variable domain (VL). There are five types of heavy chains: alpha.elta.psilon.amma and mu.ll consisting of a variable domain (VH) and three (in alpha.elta and gamma) or four (in epsilon and mu) constant domains (CH1 to CH4). Ig molecules are highly modular proteins.n which the variable and constant domains have clear.onserved sequence patterns. The domains in Ig and Ig-like molecules are grouped into four types: V-set (variable; ).1-set (constant-1; ).2-set (constant-2; ) and I-set (intermediate; ) . Structural studies have shown that these domains share a common core Greek-key beta-sandwich structure.ith the types differing in the number of strands in the beta-sheets as well as in their sequence patterns .Immunoglobulin-like domains that are related in both sequence and structure can be found in several diverse protein families. Ig-like domains are involved in a variety of functions.ncluding cell-cell recognition.ell-surface receptors.uscle structure and the immune system . This subfamily includes:Cell surface receptors containing an immunoglobin domain.Killer cell inhibitory receptors.Oprin a snake venom metalloproteinase inhibitor from Didelphis marsupialis (Southern opossum) .hich belongs to MEROPS inhibitor family I43.lan I- .Oprin homologues.
  IPR003599:Immunoglobulin subtype
This entry is for immunoglobulin-like domains. Studies indicate that the interactions essential for defining the structure of these beta sandwich proteins are also important in nucleation of folding.nd that proteins containing this fold may share similar folding pathways even though the proteins may have low sequence homology. The fold consists of a beta-sandwich formed of 7 strands in 2 sheets with a Greek-key topology. Some members of the fold have additional strands. The Pfam alignments do not include the first and last strand of the immunoglobulin-like domain.
  IPR013151:Immunoglobulin
The basic structure of immunoglobulin (Ig) molecules is a tetramer of two light chains and two heavy chains linked by disulfide bonds. There are two types of light chains: kappa and lambda.ach composed of a constant domain (CL) and a variable domain (VL). There are five types of heavy chains: alpha.elta.psilon.amma and mu.ll consisting of a variable domain (VH) and three (in alpha.elta and gamma) or four (in epsilon and mu) constant domains (CH1 to CH4). Ig molecules are highly modular proteins.n which the variable and constant domains have clear.onserved sequence patterns. The domains in Ig and Ig-like molecules are grouped into four types: V-set (variable; ).1-set (constant-1; ).2-set (constant-2; ) and I-set (intermediate; ) . Structural studies have shown that these domains share a common core Greek-key beta-sandwich structure.ith the types differing in the number of strands in the beta-sheets as well as in their sequence patterns .Immunoglobulin-like domains that are related in both sequence and structure can be found in several diverse protein families. Ig-like domains are involved in a variety of functions.ncluding cell-cell recognition.ell-surface receptors.uscle structure and the immune system . This entry represents I-set domains.hich are found in several cell adhesion molecules.ncluding vascular (VCAM).ntercellular (ICAM).eural (NCAM) and mucosal addressin (MADCAM) cell adhesion molecules.s well as junction adhesion molecules (JAM). I-set domains are also present in several other diverse protein families.ncluding several tyrosine-protein kinase receptors.he hemolymph protein hemolin.he muscle proteins titin.elokin.nd twitchin.he neuronal adhesion molecule axonin-1 .nd the signalling molecule semaphorin 4D that is involved in axonal guidance.mmune function and angiogenesis .
  IPR013098:Immunoglobulin I-set
Leucine-rich repeats (LRR.ee ) consist of 2-45 motifs of 20-30 amino acids in length that generally folds into an arc or horseshoe shape . LRRs occur in proteins ranging from viruses to eukaryotes.nd appear to provide a structural framework for the formation of protein-protein interactions . Proteins containing LRRs include tyrosine kinase receptors.ell-adhesion molecules.irulence factors.nd extracellular matrix-binding glycoproteins.nd are involved in a variety of biological processes.ncluding signal transduction.ell adhesion.NA repair.ecombination.ranscription.NA processing.isease resistance.poptosis and the immune response.LRRs are often flanked by cysteine-rich domains: an N-terminal LRR domain and a C-terminal LRR domain (). This entry represents the N-terminal LRR domain.
  IPR000372:Leucine-rich repeat, cysteine-rich flanking region, N-terminal
Leucine-rich repeats (LRR) consist of 2-45 motifs of 20-30 amino acids in length that generally folds into an arc or horseshoe shape . LRRs occur in proteins ranging from viruses to eukaryotes.nd appear to provide a structural framework for the formation of protein-protein interactions . Proteins containing LRRs include tyrosine kinase receptors.ell-adhesion molecules.irulence factors.nd extracellular matrix-binding glycoproteins.nd are involved in a variety of biological processes.ncluding signal transduction.ell adhesion.NA repair.ecombination.ranscription.NA processing.isease resistance.poptosis.nd the immune response.Sequence analyses of LRR proteins suggested the existence of several different subfamilies of LRRs. The significance of this classification is that repeats from different subfamilies never occur simultaneously and have most probably evolved independently. It is.owever.ow clear that all major classes of LRR have curved horseshoe structures with a parallel beta sheet on the concave side and mostly helical elements on the convex side. At least six families of LRR proteins.haracterized by different lengths and consensus sequences of the repeats.ave been identified. Eleven-residue segments of the LRRs (LxxLxLxxN/CxL).orresponding to the ß-strand and adjacent loop regions.re conserved in LRR proteins.hereas the remaining parts of the repeats (herein termed variable) may be very different. Despite the differences.ach of the variable parts contains two half-turns at both ends and a "linear" segment (as the chain follows a linear path overall).sually formed by a helix.n the middle. The concave face and the adjacent loops are the most common protein interaction surfaces on LRR proteins. 3D structure of some LRR proteins-ligand complexes show that the concave surface of LRR domain is ideal for interaction with alpha-helix.hus supporting earlier conclusions that the elongated and curved LRR structure provides an outstanding framework for achieving diverse protein-protein interactions . Molecular modeling suggests that the conserved pattern LxxLxL.hich is shorter than the previously proposed LxxLxLxxN/CxL is sufficient to impart the characteristic horseshoe curvature to proteins with 20- to 30-residue repeats .
  IPR001611:Leucine-rich repeat
Eukaryotic protein kinases are enzymesthat belong to a very extensive family of proteins which share a conserved catalytic core common withboth serine/threonine and tyrosine protein kinases. There are a number of conserved regions in thecatalytic domain of protein kinases. In the N-terminal extremity of the catalytic domain there is aglycine-rich stretch of residues in the vicinity of a lysine residue.hich has been shown to be involvedin ATP binding. In the central part of the catalytic domain there is a conserved aspartic acid residuewhich is important for the catalytic activity of the enzyme . This entry includes protein kinases from eukaryotes and viruses and may include some bacterial hits too.
  IPR000719:Protein kinase
Protein kinases () catalyze the phosphotransfer reaction fundamental to most signalling and regulatory processes in the eukaryotic cell . The catalytic subunit contains a core that is common to both serine/threonine and tyrosine protein kinases. The catalytic domain contains the nucleotide-binding site and the catalytic apparatus in an inter-lobe cleft. Structurally it shares functional and structural similarities with the ATP-grasp fold.hich is found in enzymes that catalyse the formation of an amide bond.nd with PIPK (phosphoinositol phosphate kinase). The three-dimensional fold of the protein kinase catalytic domain is similar to domains found in several other proteins. These include the catalytic domain of actin-fragmin kinase.n atypical protein kinase that regulates the F-actin capping activity in plasmodia ; the catalytic domain of phosphoinositide-3-kinase (PI3K).hich phosphorylates phosphoinositides and as such is involved in a number of fundamental cellular processes such as apoptosis.roliferation.otility and adhesion ; the catalytic domain of the MHCK/EF2 kinase.n atypical protein kinase that includes the TRP (transient channel potential) calcium-channel kinase involved in the modulation of calcium channels in eukaryotic cells in response to external signals ; choline kinase.hich catalyses the ATP-dependent phosphorylation of choline during the biosynthesis of phosphatidylcholine ; and 3.-aminoglycoside phosphotransferase type IIIa. bacterial enzyme that confers resistance to a range of aminoglycoside antibiotics .
  IPR011009:Protein kinase-like
This entry represents domains with an immunoglobulin-like (Ig-like) fold.hich consists of a beta-sandwich of seven or more strands in two sheets with a Greek-key topology. Ig-like domains are one of the most common protein modules found in animals.ccurring in a variety of different proteins. These domains are often involved in interactions.ommonly with other Ig-like domains via their beta-sheets . Domains within this fold-family share the same structure.ut can diverge with respect to their sequence. Based on sequence.g-like domains can be classified as V-set domains (antibody variable domain-like).1-set domains (antibody constant domain-like).2-set domains.nd I-set domains (antibody intermediate domain-like). Proteins can contain more than one of these types of Ig-like domains. For example.n the human T-cell receptor antigen CD2.omain 1 (D1) is a V-set domain.hile domain 2 (D2) is a C2-set domain.oth domains having the same Ig-like fold .Domains with an Ig-like fold can be found in many.iverse proteins in addition to immunoglobulin molecules. For example.g-like domains occur in several different types of receptors (such as various T-cell antigen receptors).everal cell adhesion molecules.HC class I and II antigens.s well as the hemolymph protein hemolin.nd the muscle proteins titin.elokin and twitchin.
  IPR013783:Immunoglobulin-like fold
IPR001245:Pkinase_Tyr 
Evalue:-138.229141235352 
Location:538-824IPR000483:LRRCT 
Evalue:-10.2924298239021 
Location:160-208IPR003599:IG 
Evalue:-7.92081875395237 
Location:216-302IPR013098:I-set 
Evalue:-5.17392539978027 
Location:325-352IPR000372:LRRNT 
Evalue:-5.11350917816162 
Location:31-58IPR001611:LRR_1 
Evalue:-2.0506100654602 
Location:128-150
SequencesProtein: NTRK3_HUMAN (839 aa)
mRNA: NM_001012338
Local Annotation
Synapse Ontology
transport of vesicles in the presynaptic neuron
sdb:0017 Mobilization: synapsins, CAM kinase I  (Evidence:keywords)
the plasma membrane of the postsynaptic neuron. It apposes with presynaptic actiove zone.
sdb:0108 postsynaptic plasma membrane  (Evidence:keywords)
KO assignmentK05101
  Level 3 annotation:
    neurotrophic tyrosine kinase, receptor, type 3
  Level 2 annotation:
    Cytokine receptors
Loci Structure (Details)Loci index, Chromosomal location, Length, Possible relational loci clusterExon1: 122 residues, 86220991-86221355Exon2: 55 residues, 86224504-86224663Exon3: 16 residues, 86229928-86229970Exon4: 83 residues, 86273425-86273669Exon5: 59 residues, 86277246-86277419Exon6: 45 residues, 86284857-86284988Exon7: 65 residues, 86377091-86377280Exon8: 36 residues, 86470505-86470608Exon9: 23 residues, 86471396-86471461Exon10: 10 residues, 86472945-86472969Exon11: 101 residues, 86479335-86479632Exon12: 49 residues, 86480133-86480275Exon13: 49 residues, 86480701-86480844Exon14: 54 residues, 86481638-86481796Exon15: 25 residues, 86491569-86491638Exon16: 26 residues, 86527652-86527724Exon17: 27 residues, 86528459-86528534Exon18: 89 residues, 86600140-86600403Exon19: 51 residues, 86600518-86600665Exon20: 2 residues, -Jump to NTRK3_HUMAN  
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