chr	group_id	NB_Genes	location	strand	ENS_ID	Name	Description
1	33	2	57320479	1	ENSG00000157131	C8A	complement component 8, alpha polypeptide [Source:HGNC Symbol;Acc:1352]
1	33	2	57394883	-1	ENSG00000021852	C8B	complement component 8, beta polypeptide [Source:HGNC Symbol;Acc:1353]