CREATE TABLE "distant_homologs" (
  "common_name" text,
  "protein_name" text,
  "divergence_from_human_lineage_mya" real,
  "accession_number" text,
  "sequence_length_aa" real,
  "sequence_identity_to_human_protein" text
);

Question: What is the accession number of the protein with the common name Purple Sea Urchin?
SQL: SELECT "accession_number" FROM "distant_homologs" WHERE "common_name"='purple sea urchin';

Question: What is the protein name of the protein with a sequence identity to human protein of 32%?
SQL: SELECT "protein_name" FROM "distant_homologs" WHERE "sequence_identity_to_human_protein"='32%';

Question: What is the sequence length (aa) of the protein with the common name Purple Sea Urchin and a divergence from human lineage less than 742.9?
SQL: SELECT SUM("sequence_length_aa") FROM "distant_homologs" WHERE "common_name"='purple sea urchin' AND "divergence_from_human_lineage_mya"<742.9;

Question: What is the accession number of the protein with a divergence from human lineage of 937.5?
SQL: SELECT "accession_number" FROM "distant_homologs" WHERE "divergence_from_human_lineage_mya"=937.5;