Final answer:
The number of hits for protein matches shown for each database varies and is typically not specified without additional context.
Step-by-step explanation:
The number of hits for protein matches shown for each database when conducting a protein database search might vary depending on the specific database and the search parameters used. Without specifying the context or the database in question, it's impossible to provide a definitive answer to how many hits for protein matches are shown. Typically, databases may return a multitude of hits, and researchers can often filter and narrow down these results based on their specific criteria such as score, identity, or relevance.