ADGRB1 and Alzheimer disease: MERTK & Axl, integrin (ITGAV, ITGB3, ITGB5), HAVCR1 & TIMD4, ADGRB1, STAB1 (bridged by C1q), CD300f and LRP1 (bridged by Crt, C1q) are all highly or uniquely expressed by microglia94 and may become preferential PS receptors in the absence of TREM2, altering the function of microglia in AD.