chr	group_id	NB_Genes	location	strand	ENS_ID	Name	Description
14	639	2	70918874	1	ENSG00000139985	ADAM21	ADAM metallopeptidase domain 21 [Source:HGNC Symbol;Acc:200]
14	639	2	70989075	-1	ENSG00000134007	ADAM20	ADAM metallopeptidase domain 20 [Source:HGNC Symbol;Acc:199]