def search_for_transcript(edge_IDs, transcript_dict):
    """ Given the edge IDs (in set data structure) that make up a query 
        transcript, look for a match in the transcript dict. 
        Return gene ID and transcript ID if found, and None if not. """

    try:
        transcript = transcript_dict[edge_IDs]
        gene_ID = transcript["gene_ID"]
        return gene_ID, transcript

    except:
        return None, None