what's the salmonella with shigella being ipgc
CREATE TABLE "nomenclature_of_t3_ss_proteins" (
  "function_genus" text,
  "shigella" text,
  "salmonella" text,
  "yersinia" text,
  "escherichia" text
);
SELECT "salmonella" FROM "nomenclature_of_t3_ss_proteins" WHERE "shigella"='IpgC';