>sp|P73646|KHSE_SYNY3 Homoserine kinase OS=Synechocystis sp. GN=thrB MVSFTVSVPATTANIGPGFDCLGAALGLYNHVTVTDPTDPEVDLLIEARGRDGEKISTTK DNLLYQAIAYFYQQTGQAIPPLKLEIDLEIPLARGLGSSATAIVGGLLAANQAAGNPCTT SEILQMAIAMEGHPDNVAPALLGGCQLAVKNGDHWQLVALDWPSKFVPVLAIPNFELSTE AARAVLPHQYDRSAAIFNASHLALLVQAFSQGRGDWLALALQDQIHQPYRQSLIPAYDQL HQAALAAGAYNLVISGAGPTLLAIADEVRAPQIASTLVETWHDAGIEAESHCLPIDTKGA TITKLR