def neurommsig_gene_ora(graph: BELGraph, genes: List[Gene]) -> float:
graph_genes = set(get_nodes_by_function(graph, GENE))<EOL>return len(graph_genes.intersection(genes)) / len(graph_genes)<EOL>
Calculate the percentage of target genes mappable to the graph.

    Assume: graph central dogma inferred, collapsed to genes, collapsed variants