Tyrosine kinase with immunoglobulin-like and EGF-like domains 1 also known as TIE1 is an angiopoietin receptor which in humans is encoded by the TIE1 gene.^[5]

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TIE1
Identifiers
Aliases	TIE1, JTK14, TIE, tyrosine kinase with immunoglobulin like and EGF like domains 1, LMPHM11
External IDs	OMIM: 600222 MGI: 99906 HomoloGene: 3957 GeneCards: TIE1
Gene location (Human) Chr. Chromosome 1 (human)[1] Band 1p34.2 Start 43,300,982 bp[1] End 43,323,108 bp[1]
Gene location (Mouse) Chr. Chromosome 4 (mouse)[2] Band 4 D2.1|4 54.67 cM Start 118,328,388 bp[2] End 118,347,258 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in right lung upper lobe of left lung right lobe of thyroid gland subcutaneous adipose tissue left lobe of thyroid gland left ventricle tibial nerve gallbladder left uterine tube spleen Top expressed in left lung ankle joint right lung interventricular septum left lung lobe right lung lobe yolk sac atrium vein inferior vena cava More reference expression data BioGPS n/a
Gene ontology Molecular function transferase activity nucleotide binding protein kinase activity kinase activity protein binding transmembrane receptor protein tyrosine kinase activity protein tyrosine kinase activity ATP binding receptor tyrosine kinase transmembrane signaling receptor activity Cellular component integral component of membrane membrane plasma membrane integral component of plasma membrane cytoplasm receptor complex Biological process plasma membrane fusion response to retinoic acid phosphorylation in utero embryonic development vasculogenesis protein phosphorylation negative regulation of cell migration blood vessel development angiogenesis negative regulation of angiogenesis mesoderm development signal transduction peptidyl-tyrosine phosphorylation negative regulation of signal transduction cell differentiation negative regulation of apoptotic process positive regulation of ERK1 and ERK2 cascade transmembrane receptor protein tyrosine kinase signaling pathway positive regulation of angiogenesis Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 7075 21846 Ensembl ENSG00000066056 ENSMUSG00000033191 UniProt P35590 Q06806 RefSeq (mRNA) NM_001253357 NM_005424 NM_011587 RefSeq (protein) NP_001240286 NP_005415 NP_035717 Location (UCSC) Chr 1: 43.3 – 43.32 Mb Chr 4: 118.33 – 118.35 Mb PubMed search [3] [4]
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TIE1 is a cell surface protein expressed exclusively in endothelial cells, however it has also been shown to be expressed in immature hematopoietic cells^[6] and platelets.^[7] TIE1 upregulates the cell adhesion molecules (CAMs) VCAM-1, E-selectin, and ICAM-1 through a p38-dependent mechanism. Attachment of monocyte derived immune cells to endothelial cells is also enhanced by TIE1 expression. TIE1 has a proinflammatory effect and may play a role in the endothelial inflammatory diseases such as atherosclerosis.^[8]

• Angiopoietin § Tie pathway