GCA_000013225.1 CYB_1503 definition DnaK family protein GCA_000013225.1 CYB_2781 definition chaperone protein DnaK GCA_000013225.1 CYB_2781 gene_symbol dnaK-1 GCA_000013225.1 CYB_2934 definition chaperone protein DnaK GCA_000013225.1 CYB_2934 gene_symbol dnaK-2