chr	group_id	NB_Genes	location	strand	ENS_ID	Name	Description
19	809	2	7445850	1	ENSG00000268861	CTD-2207O23.3	Rho guanine nucleotide exchange factor 18  [Source:UniProtKB/TrEMBL;Acc:M0R125]
19	809	2	7459999	1	ENSG00000104880	ARHGEF18	Rho/Rac guanine nucleotide exchange factor (GEF) 18 [Source:HGNC Symbol;Acc:17090]