>2P04_1|Chains A, B|signal transduction histidine kinase|Nostoc punctiforme (63737) MAPPHLTLSPELLAKAFPFHFAFSRNREIVQTGEVLERISPEPLVGKLIEQHFQINRPKILIDFDAISKQPRALFILEFLHNGMQLKGQMMYQPEEEVIFFLGSPWITDTTSLAPLGIKLK