Descriptions

NTRK1 is a high-affinity nerve growth factor receptor and its ligand is nerve growth factor (NGF), which is involved in the survival, differentiation, development, and maturation of the central and peripheral nervous systems, particularly the sensory and sympathetic neurons. Studies have shown that deletion of the second Ig-like domain of NTRK1 results in spontaneous activation, so the second Ig-like domain is an autoinhibitory domain required to prevent spontaneous activation by receptor dimerization.

Autoinhibitory domains (AIDs)

Target domain

538-810 (Protein kinase domain)

Relief mechanism

Ligand binding

Assay

Accessory elements

696-721 (Activation loop from InterPro)

Target domain

538-814 (Protein kinase domain)

Relief mechanism

Assay

Autoinhibited structure

Activated structure

1 structures for Q5IS37

Entry ID Method Resolution Chain Position Source
AF-Q5IS37-F1 Predicted AlphaFoldDB

No variants for Q5IS37

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q5IS37

No associated diseases with Q5IS37

14 regional properties for Q5IS37

Type Name Position InterPro Accession
domain Leucine-rich repeat N-terminal domain 31 - 63 IPR000372
domain Cysteine-rich flanking region, C-terminal 160 - 208 IPR000483
domain Protein kinase domain 538 - 814 IPR000719
domain Serine-threonine/tyrosine-protein kinase, catalytic domain 539 - 809 IPR001245
repeat Leucine-rich repeat 104 - 160 IPR001611
conserved_site Tyrosine-protein kinase, receptor class II, conserved site 703 - 711 IPR002011
domain Immunoglobulin subtype 216 - 302 IPR003599
domain Immunoglobulin-like domain 210 - 300 IPR007110
active_site Tyrosine-protein kinase, active site 675 - 687 IPR008266
domain Immunoglobulin I-set 323 - 391 IPR013098
domain Immunoglobulin-like beta-sandwich domain 218 - 296 IPR013151
binding_site Protein kinase, ATP binding site 544 - 572 IPR017441
domain Tyrosine-protein kinase, catalytic domain 538 - 810 IPR020635
domain Growth factor receptor NTRK, leucine rich repeat C-terminal 163 - 208 IPR031635

Functions

Description
EC Number 2.7.10.1 Protein-tyrosine kinases
Subcellular Localization
  • Membrane ; Single-pass type I membrane protein
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

3 GO annotations of cellular component

Name Definition
axon The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
plasma membrane The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
receptor complex Any protein complex that undergoes combination with a hormone, neurotransmitter, drug or intracellular messenger to initiate a change in cell function.

4 GO annotations of molecular function

Name Definition
ATP binding Binding to ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
neurotrophin binding Binding to a neurotrophin, any of a family of growth factors that prevent apoptosis in neurons and promote nerve growth.
neurotrophin receptor activity Combining with a neurotrophin, any of a family of growth factors that prevent apoptosis in neurons and promote nerve growth, and transmitting the signal to initiate a change in cell activity.
transmembrane receptor protein tyrosine kinase activity Combining with a signal and transmitting the signal from one side of the membrane to the other to initiate a change in cell activity by catalysis of the reaction

8 GO annotations of biological process

Name Definition
cell differentiation The cellular developmental process in which a relatively unspecialized cell, e.g. embryonic or regenerative cell, acquires specialized structural and/or functional features that characterize a specific cell. Differentiation includes the processes involved in commitment of a cell to a specific fate and its subsequent development to the mature state.
cellular response to nerve growth factor stimulus A process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nerve growth factor stimulus.
heart development The process whose specific outcome is the progression of the heart over time, from its formation to the mature structure. The heart is a hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood.
nervous system development The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
phosphorylation The process of introducing a phosphate group into a molecule, usually with the formation of a phosphoric ester, a phosphoric anhydride or a phosphoric amide.
positive regulation of neuron projection development Any process that increases the rate, frequency or extent of neuron projection development. Neuron projection development is the process whose specific outcome is the progression of a neuron projection over time, from its formation to the mature structure. A neuron projection is any process extending from a neural cell, such as axons or dendrites (collectively called neurites).
regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction Any process that modulates the frequency, rate or extent of protein kinase B signaling, a series of reactions mediated by the intracellular serine/threonine kinase protein kinase B.
transmembrane receptor protein tyrosine kinase signaling pathway The series of molecular signals initiated by an extracellular ligand binding to a receptor on the surface of the target cell where the receptor possesses tyrosine kinase activity, and ending with the regulation of a downstream cellular process, e.g. transcription.

27 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
Q91987 NTRK2 BDNF/NT-3 growth factors receptor Gallus gallus (Chicken) SS
Q91009 NTRK1 High affinity nerve growth factor receptor Gallus gallus (Chicken) SS
Q8AXY6 MUSK Muscle, skeletal receptor tyrosine protein kinase Gallus gallus (Chicken) SS
Q91044 NTRK3 NT-3 growth factor receptor Gallus gallus (Chicken) SS
Q7YR43 DDR1 Epithelial discoidin domain-containing receptor 1 Pan troglodytes (Chimpanzee) SS
Q24488 Ror Tyrosine-protein kinase transmembrane receptor Ror Drosophila melanogaster (Fruit fly) SS
Q9V6K3 Nrk Tyrosine-protein kinase transmembrane receptor Ror2 Drosophila melanogaster (Fruit fly) SS
Q16620 NTRK2 BDNF/NT-3 growth factors receptor Homo sapiens (Human) EV
Q01973 ROR1 Inactive tyrosine-protein kinase transmembrane receptor ROR1 Homo sapiens (Human) PR
O15146 MUSK Muscle, skeletal receptor tyrosine-protein kinase Homo sapiens (Human) EV
Q01974 ROR2 Tyrosine-protein kinase transmembrane receptor ROR2 Homo sapiens (Human) EV
P04629 NTRK1 High affinity nerve growth factor receptor Homo sapiens (Human) EV
Q16288 NTRK3 NT-3 growth factor receptor Homo sapiens (Human) SS
Q9Z138 Ror2 Tyrosine-protein kinase transmembrane receptor ROR2 Mus musculus (Mouse) SS
Q3UFB7 Ntrk1 High affinity nerve growth factor receptor Mus musculus (Mouse) SS
Q9Z139 Ror1 Inactive tyrosine-protein kinase transmembrane receptor ROR1 Mus musculus (Mouse) PR
P15209 Ntrk2 BDNF/NT-3 growth factors receptor Mus musculus (Mouse) SS
Q61006 Musk Muscle, skeletal receptor tyrosine-protein kinase Mus musculus (Mouse) SS
Q6VNS1 Ntrk3 NT-3 growth factor receptor Mus musculus (Mouse) SS
P24786 NTRK3 NT-3 growth factor receptor Sus scrofa (Pig) SS
P35739 Ntrk1 High affinity nerve growth factor receptor Rattus norvegicus (Rat) SS
Q62838 Musk Muscle, skeletal receptor tyrosine protein kinase Rattus norvegicus (Rat) SS
Q63604 Ntrk2 BDNF/NT-3 growth factors receptor Rattus norvegicus (Rat) SS
Q03351 Ntrk3 NT-3 growth factor receptor Rattus norvegicus (Rat) SS
G5EGK5 cam-1 Tyrosine-protein kinase receptor cam-1 Caenorhabditis elegans SS
P43298 TMK1 Receptor protein kinase TMK1 Arabidopsis thaliana (Mouse-ear cress) PR
Q9LFG1 At3g53590 Putative leucine-rich repeat receptor-like serine/threonine-protein kinase At3g53590 Arabidopsis thaliana (Mouse-ear cress) PR
10 20 30 40 50 60
MDVSLCPAKC SFWRIFLLGS VWLDYVGSVL ACPANCVCSK TEINCRRPDD GNLFPLLEGQ
70 80 90 100 110 120
DSGNSNGNAS INITDISRNI TSIHIENWRS LHTLNAVDME LYTGLQKLTI KNSGLRSIQP
130 140 150 160 170 180
RAFAKNPHLR YINLSSNRLT TLSWQLFQTL SLRELQLEQN FFNCSCDIRW MQLWQEQGEA
190 200 210 220 230 240
KLNSQNLYCI NTDGSQLPLF RMNISQCDLP EISVSHVNLT VREGDNAVIT CNGSGSPLPD
250 260 270 280 290 300
VDWIVTGLQS INTHQTNLNW TNVHAINLTL VNVTSEDNGF TLTCIAENVV GMSNASVALT
310 320 330 340 350 360
VYYPPRVVSL EEPELRLEHC IEFVVRGNPP PTLHWLHNGQ PLRESKIIHV EYYQEGEISE
370 380 390 400 410 420
GCLLFNKPTH YNNGNYTLIA KNPLGTANQT ISGHFLKEPF PESTDNFILF DEVSPTPPIT
430 440 450 460 470 480
VTHKPEEDTF GVSIAVGLAA FACVLLVVLF VMINKYGRRS KFGMKGPVAV ISGEEDSASP
490 500 510 520 530 540
LHHINHGITT PSSLDAGPDT VVIGMTRIPV IENPQYFRQG HNCHKPDTYV QHIKRRDIVL
550 560 570 580 590 600
KRELGEGAFG KVFLAECYNL SPTKDKMLVA VKALKDPTLA ARKDFQREAE LLTNLQHEHI
610 620 630 640 650 660
VKFYGVCGDG DPLIMVFEYM KHGDLNKFLR AHGPDAMILV DGQPRQAKGE LGLSQMLHIA
670 680 690 700 710 720
SQIASGMVYL ASQHFVHRDL ATRNCLVGAN LLVKIGDFGM SRDVYSTDYY RVGGHTMLPI
730 740 750 760 770 780
RWMPPESIMY RKFTTESDVW SFGVILWEIF TYGKQPWFQL SNTEVIECIT QGRVLERPRV
790 800 810 820
CPKEVYDVML GCWQREPQQR LNIKEIYKIL HALGKATPIY LDILG