>sp|P72648|KGUA_SYNY3 Guanylate kinase OS=Synechocystis sp. GN=gmk MAPDQTSVKGQLIVLTGPSGVGKGTLVQLLLERQPHWFLSISATTRSPRAGEVDGQSYYF LTKEEFQTWIGEEKLLEWAEYAGNYYGTPRQPVEEQIAQGKTVLLEIEVLGARQIKQTFP SARRIFILPPSVEVLEERLRGRGSDSETAIAKRLAQAQQELQAAAEFDYQVVNDDLDQAL HRLVKLIGEEE