Searching for blocks Another important database to search is BLOCKS (this is a USA connection, so may be slow): as before, simply cut and paste your sequence into the Input box, click on Perform Search and wait awhile. Scroll down to the Blksort Hits heading and note any good matches - see Help for more information. While visiting this server, also try searching the blocks-format version of PRINTS: switch the Select database button to Prints database, scroll down the page and Perform Search. Again, note any high-scoring matches. Do the results from the BLOCKS databases differ?