Tyrosine kinase receptor
From Proteopedia
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| - | <StructureSection load=' | + | <StructureSection load='4yne' size='340' side='right' caption='Human TRK-A kinase domain complex with inhibitor, glycerol and sulfate (PDB code [[4yne]])' scene=''> |
== Function == | == Function == | ||
| - | '''Tyrosine kinase receptor''' or '''high affinity nerve growth factor receptor''' (TRK-A) play an important role in cellular processes like growth, motility, differentiation and metabolism<ref>PMID:29455648</ref>. | + | '''Tyrosine kinase receptor''' or '''high affinity nerve growth factor receptor''' (TRK-A) play an important role in cellular processes like growth, motility, differentiation and metabolism<ref>PMID:29455648</ref>. Nerve growth factor (NGF) is a neutrotrophin which binds with high affinity to TRK. The binding of NGF to TRK-A activates the latter which undergoes dimerization and autophosphorylation at several Tyr residues that selectively trigger activity in several intercellular signaling pathways via binding of specific effector proteins<ref>PMID:24668471</ref>. There are 3 members to the TRK family: '''TRK-A''', '''TRK-B''' and '''TRK-C'''. All of them bind preferentially - NGF, neurotrophin-4, Brain-Derived Neurotrophic Factor (BDNF), and neurotrophin-3. |
| + | *'''Trk-C''' is involved in the biology favourable neuroblastomas<ref>PMID:9516852</ref>. | ||
| + | *'''Alk tyrosine kinase receptor''' is expressed in neurons of the central nervous system signaling growth and differentiation of neurons<ref>PMID:15226403</ref>. | ||
| + | *'''RET tyrosine kinase receptor''' (Rearranged during transfection) plays a role in the development of the central and peripheral nervous systems<ref>PMID:32993133</ref>. | ||
| + | *'''MuSK tyrosine kinase receptor''' (muscle-specific kinase) plays a role in signaling at the formation of neuromuscular junctions<ref>PMID:23467009</ref>. | ||
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| + | See also: | ||
| + | *[[High affinity nerve growth factor receptor]] | ||
| + | *[[Neurotrophin]]. | ||
| + | *[[Receptor tyrosine kinases]] | ||
== Disease == | == Disease == | ||
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== Structural highlights == | == Structural highlights == | ||
| - | TRK-A contains an extracellular ligand binding domain (LBD), a transmembrane helix and an intracellular region which contains the kinase domain. The kinase domain (PDB code [[4yne]]) contains the tripeptide DFG which flips out in TRK-A inactivated form. <scene name='83/839914/Cv/ | + | TRK-A contains an extracellular ligand binding domain (LBD), a transmembrane helix and an intracellular region which contains the kinase domain. The kinase domain (PDB code [[4yne]]) contains the tripeptide DFG which flips out in TRK-A inactivated form. <scene name='83/839914/Cv/7'>Inhibitor binding site</scene> (PDB code [[4yne]]). Water molecules are shown as red spheres. The structure of the complex of TRK-A with the phenylpyrrolidine derivative shows the inhibitor forming hydrogen bonds to Met620 and Lys572 residues and π-π interactions of it with Phe617 and Phe 698 <ref>PMID:26005534</ref>. |
The <scene name='83/839914/Cv/4'>complex between TRK-A and the nerve growth factor</scene> (PDB code [[2ifg]]) is a 2:2 dimer. The C-terminal immunoglobulin-like domain interacts with the NGF<ref>PMID:17196528</ref>. The extracellular domain of TRK-A contains <scene name='83/839914/Cv/5'>3 Leu-rich regions</scene> flanked by <scene name='83/839914/Cv/6'>Cys-rich regions</scene> (in yellow), 2 immunoglobulin-like domains and the nerve growth factor (NGF) binding domain. | The <scene name='83/839914/Cv/4'>complex between TRK-A and the nerve growth factor</scene> (PDB code [[2ifg]]) is a 2:2 dimer. The C-terminal immunoglobulin-like domain interacts with the NGF<ref>PMID:17196528</ref>. The extracellular domain of TRK-A contains <scene name='83/839914/Cv/5'>3 Leu-rich regions</scene> flanked by <scene name='83/839914/Cv/6'>Cys-rich regions</scene> (in yellow), 2 immunoglobulin-like domains and the nerve growth factor (NGF) binding domain. | ||
| - | </StructureSection> | ||
== 3D Structures tyrosine kinase receptor == | == 3D Structures tyrosine kinase receptor == | ||
| - | + | [[Tyrosine kinase receptor 3D structures]] | |
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| - | *Tyrosine kinase receptor-A or high affinity nerve growth factor receptor; Domains – extracellular 36-382; LBD 285-380; transmembrane 410-447; kinase 498-796 | ||
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| - | **[[1he7]] – hTRK-A LBD domain – human <BR /> | ||
| - | **[[4crp]] – hTRK-A LBD domain (mutant) – NMR<br /> | ||
| - | **[[2ifg]] – hTRK-A extracellular domain + b-nerve growth factor <BR /> | ||
| - | **[[4gt5]], [[4f0i]]] – hTRK-A kinase domain<BR /> | ||
| - | **[[5kvt]], [[6pl1]], [[6npt]], [[6nsp]], [[6nss]], [[5wr7]], [[6d1y]], [[6d1z]], [[6pmc]], [[6iqn]], [[6pl2]], [[6pl3]], [[6pma]], [[6pmb]], [[6pme]], [[5kmj]], [[5kmk]], [[5kmm]], [[5kmn]], [[5kmo]], [[4aoj]], [[4pmm]], [[4pmp]], [[4pms]], [[4pmt]], [[4yps]], [[5h3q]], [[5i8a]], [[5kmi]], [[5kml]], [[6d20]], [[6dkb]], [[6dkg]], [[6dki]], [[6j5l]], [[5jfs]], [[5jfv]], [[5jfw]], [[5jfx]], [[4yne]], [[6dkw]] – hTRK-A kinase domain + inhibitor<BR /> | ||
| - | **[[2n90]] – hTRK-A transmembrane domain - NMR <BR /> | ||
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| - | *TRK-B or BDNF/NT-3 growth factor receptor | ||
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| - | **[[1wwb]] – hTRK-B LBD domain <BR /> | ||
| - | **[[1hcf]] – hTRK-B LBD domain + neutrotrophin-4<BR /> | ||
| - | **[[5mo9]] – hTRK-B LBD domain + antibody<BR /> | ||
| - | **[[4asz]] – hTRK-B kinase domain<BR /> | ||
| - | **[[4at3]], [[4at4]], [[4at5]] – hTRK-B kinase domain + inhibitor<BR /> | ||
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| - | *TRK-C or NT-3 growth factor receptor | ||
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| - | **[[1wwc]], [[4pbv]] – hTRK-C LBD domain (mutant)<BR /> | ||
| - | **[[4pbv]], [[4pbw]] – hTRK-C extracellular domain (mutant) + tyrosine phosphatase s<BR /> | ||
| - | **[[3v5q]], [[4ymj]], [[6kzc]], [[6kzd]] – hTRK-C kinase domain + inhibitor<BR /> | ||
| - | }} | ||
== References == | == References == | ||
<references/> | <references/> | ||
| + | </StructureSection> | ||
[[Category:Topic Page]] | [[Category:Topic Page]] | ||
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