chr	group_id	NB_Genes	location	strand	ENS_ID	Name	Description
15	676	3	78857862	1	ENSG00000169684	CHRNA5	cholinergic receptor, nicotinic, alpha 5 (neuronal) [Source:HGNC Symbol;Acc:1959]
15	676	3	78885394	-1	ENSG00000080644	CHRNA3	cholinergic receptor, nicotinic, alpha 3 (neuronal) [Source:HGNC Symbol;Acc:1957]
15	676	3	78916461	-1	ENSG00000117971	CHRNB4	cholinergic receptor, nicotinic, beta 4 (neuronal) [Source:HGNC Symbol;Acc:1964]