chr	group_id	NB_Genes	location	strand	ENS_ID	Name	Description
14	635	2	52734431	1	ENSG00000168229	PTGDR	prostaglandin D2 receptor (DP) [Source:HGNC Symbol;Acc:9591]
14	635	2	52781023	1	ENSG00000125384	PTGER2	prostaglandin E receptor 2 (subtype EP2), 53kDa [Source:HGNC Symbol;Acc:9594]