TEM5/GPR124 Proteins and Enzymes

Tumor endothelial marker 5 is an Orphan-U GPCR with an unknown ligand. Tumor Endothelial Marker 5, like GPR125, has a leucine rich repeat (LRR), an immunoglobulin (Ig) domain, and a hormone-binding domain (HBD). The Ig domain shows similarities to motilin and titin, while the LRR domain shows similarities to LRIG1 and SLIT1-2. ESTs have been isolated primarily from amnion, connective tissue, ear, embryo, eye, ganglion, heart, lung, placenta, and skin libraries.