I have transcript and gene IDs in Refseq format like this :
ZNF498 IL11RA KIF2A NCOA3 ....
NM_152486 NM_015658 NM_198317 NM_032129
I want create matrix which associate transcripts to it's gene. I looked at the Refseq database, but I couldn't find file which contain Gene and it's transcripts in Refseq IDs format. I don't want to convert my ids to other format, because I lose some of them in conversion.
Would someone help me how can I do this?