General Information of Target

Target ID LDTP03485
Target Name Leukocyte tyrosine kinase receptor (LTK)
Gene Name LTK
Gene ID 4058
Synonyms
TYK1; Leukocyte tyrosine kinase receptor; EC 2.7.10.1; Protein tyrosine kinase 1
3D Structure
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2D Sequence (FASTA)
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3D Structure (PDB)
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Sequence
MGCWGQLLVWFGAAGAILCSSPGSQETFLRSSPLPLASPSPRDPKVSAPPSILEPASPLN
SPGTEGSWLFSTCGASGRHGPTQTQCDGAYAGTSVVVTVGAAGQLRGVQLWRVPGPGQYL
ISAYGAAGGKGAKNHLSRAHGVFVSAIFSLGLGESLYILVGQQGEDACPGGSPESQLVCL
GESRAVEEHAAMDGSEGVPGSRRWAGGGGGGGGATYVFRVRAGELEPLLVAAGGGGRAYL
RPRDRGRTQASPEKLENRSEAPGSGGRGGAAGGGGGWTSRAPSPQAGRSLQEGAEGGQGC
SEAWATLGWAAAGGFGGGGGACTAGGGGGGYRGGDASETDNLWADGEDGVSFIHPSSELF
LQPLAVTENHGEVEIRRHLNCSHCPLRDCQWQAELQLAECLCPEGMELAVDNVTCMDLHK
PPGPLVLMVAVVATSTLSLLMVCGVLILVKQKKWQGLQEMRLPSPELELSKLRTSAIRTA
PNPYYCQVGLGPAQSWPLPPGVTEVSPANVTLLRALGHGAFGEVYEGLVIGLPGDSSPLQ
VAIKTLPELCSPQDELDFLMEALIISKFRHQNIVRCVGLSLRATPRLILLELMSGGDMKS
FLRHSRPHLGQPSPLVMRDLLQLAQDIAQGCHYLEENHFIHRDIAARNCLLSCAGPSRVA
KIGDFGMARDIYRASYYRRGDRALLPVKWMPPEAFLEGIFTSKTDSWSFGVLLWEIFSLG
YMPYPGRTNQEVLDFVVGGGRMDPPRGCPGPVYRIMTQCWQHEPELRPSFASILERLQYC
TQDPDVLNSLLPMELGPTPEEEGTSGLGNRSLECLRPPQPQELSPEKLKSWGGSPLGPWL
SSGLKPLKSRGLQPQNLWNPTYRS
Target Type
Literature-reported
Target Bioclass
Enzyme
Family
Protein kinase superfamily, Tyr protein kinase family, Insulin receptor subfamily
Subcellular location
Cell membrane
Function
Receptor with a tyrosine-protein kinase activity. Following activation by ALKAL1 or ALKAL2 ligands at the cell surface, transduces an extracellular signal into an intracellular response. Ligand-binding to the extracellular domain induces tyrosine kinase activation, leading to activation of the mitogen-activated protein kinase (MAPK) pathway. Phosphorylates almost exclusively at the first tyrosine of the Y-x-x-x-Y-Y motif. The exact function of this protein is not known; studies with chimeric proteins demonstrate its ability to promote growth and specifically neurite outgrowth, and cell survival. Involved in regulation of the secretory pathway involving endoplasmic reticulum (ER) export sites (ERESs) and ER to Golgi transport.
TTD ID
T47657
Uniprot ID
P29376
DrugMap ID
TT1JZG6
Ensemble ID
ENST00000263800.11
HGNC ID
HGNC:6721
ChEMBL ID
CHEMBL5627

Target Site Mutations in Different Cell Lines

Cell line Mutation details Probe for labeling this protein in this cell
42MGBA SNV: p.S172I .
HCT15 SNV: p.G153W .
MCAS SNV: p.P284T .

Probe(s) Labeling This Target

ABPP Probe
Click To Hide/Show 1 Probe Related to This Target
Probe name Structure Binding Site(Ratio) Interaction ID Ref
ENE
 Probe Info 
N.A.  LDD0006  [1]

The Interaction Atlas With This Target

The Protein(s) Related To This Target

Enzyme
Click To Hide/Show 1 Protein(s) Interacting with This Target
Protein name Family Uniprot ID
Ephrin type-A receptor 2 (EPHA2) Tyr protein kinase family P29317
Other
Click To Hide/Show 1 Protein(s) Interacting with This Target
Protein name Family Uniprot ID
ALK and LTK ligand 1 (ALKAL1) ALKAL family Q6UXT8

The Drug(s) Related To This Target

Approved
Click To Hide/Show 1 Drug(s) Interacting with This Target
Drug Name Drug Type External ID
Fostamatinib Small molecular drug DB12010
Investigative
Click To Hide/Show 1 Drug(s) Interacting with This Target
Drug Name Drug Type External ID
Pmid24432909c8e Small molecular drug D0K5UF

References

1 A modification-centric assessment tool for the performance of chemoproteomic probes. Nat Chem Biol. 2022 Aug;18(8):904-912. doi: 10.1038/s41589-022-01074-8. Epub 2022 Jul 21.
Mass spectrometry data entry: PXD027758 , PXD027755 , PXD027760 , PXD027762 , PXD027756 , PXD027591 , PXD007149 , PXD030064 , PXD032392 , PXD027789 , PXD027767 , PXD027764