PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 35174167-2 2021 ARHGEF3 or XPLN (exchange factor found in platelets, leukemic, and neuronal tissues) is a selective guanine nucleotide exchange factor for Rho GTPases (RhoGEFs) that activates RhoA and RhoB but not RhoC, RhoG, Rac1, or Cdc42. Guanine Nucleotides 100-118 ras homolog family member A Homo sapiens 176-180