Table: gene_orthology
Columns: human_gene_protein
mouse_ortholog
yeast_ortholog
subpathway
genecards_entry

Question: What human gene has a yeast ortholog of RAD26?
SQL: SELECT "human_gene_protein" FROM gene_orthology WHERE "yeast_ortholog" = 'rad26'

Question: What is the human gene that has a mouse ortholog of LIG1?
SQL: SELECT "human_gene_protein" FROM gene_orthology WHERE "mouse_ortholog" = 'lig1'

Question: What is the yeast ortholog that has a subpathway of GGR and GeneCards entry CETN2?
SQL: SELECT "yeast_ortholog" FROM gene_orthology WHERE "subpathway" = 'ggr' AND "genecards_entry" = 'cetn2'

Question: What is the yeast ortholog of mouse ortholog MMS19?
SQL: SELECT "yeast_ortholog" FROM gene_orthology WHERE "mouse_ortholog" = 'mms19'