Table 6.

Results of the UniGene/EST Screen

Description UniGene ID Endothelial hits
TIE1 receptor endothelial tyrosine kinaseHs.788245
Cytosolic phospholipase A2; involved in the metabolism of eicosanoidsHs.2115873
Branched chain alpha-ketoacid dehydrogenaseHs.12652
CGMP-dependent protein kinase; cloned from aorta cDNA, strongly expressed in well vascularised tissues like aorta, heart, and uterus (Tamura et al. 1996)Hs.26892
Lymphatic vessel endothelial hyaluronan receptor 1-LYVE1 (Banerji et al. 1999)Hs.179172
TRAF interacting protein: TNF signalling pathwayHs.212542
Multimerin: a very big endothelial-specific protein; binds platelet factor V, can also be found in platelets (Hayward et al. 1996)Hs.329342
Diubiquitin (a member of the ubiquitin family); reported in dendrytic and B lymphocyte cells; involved in antigen processing; this is first evidence that it is also present in endothelial cells (Bates et al. 1997)Hs.445322
Beta-transducin family protein; also a homolog of D. melanogaster gene notchless: a novel WD40 repeat containing protein that modulates Notch signalling activityHs.855702
TIE2/TEK receptor endothelial tyrosine kinaseHs.896402
BCL2 associated X protein (BAX)Hs.1594282
Sepiapterin reductase mRNAHs.1601002
Retinoic acid receptor beta (RARB)Hs.1714952
ST2 receptor: a homolog of the interleukin 1 receptorHs.661
Mitogen activated protein kinase 8 (MAPK8)Hs.8591
ERG gene related to the ETS oncogeneHs.455141
PP35 similar to Escherichia coli yhdg and Rhodobacter capsulatusnifR3Hs.976271
Interphotoreceptor matrix proteoglycan; strongly expressed in retina and umbilical cord vein (Felbor et al. 1998)Hs.1298821
Methylmalonate semialdehyde dehydrogenase geneHs.1700081
HTLV-I–related endogenous retroviral sequenceHs.2479631

[i] Twenty known genes were selected in the UniGene/EST screen (no hits in the nonendothelial pool and at least one hit in the endothelial pool). At least four of these genes are known endothelial-specific genes: TIE1, TIE2/TEK, LVYE1, and multimerin, indicating ∼20% prediction accuracy. Other genes, although certainly preferentially expressed in the endothelial cells, may not be endothelial specific.