c.23.1.1 52173 CheY-related           
c.23.1.2 52194 Receiver domain of the ethylene receptor      
c.23.1.3 52197 Positive regulator of the amidase operon AmiR     
c.23.1.4 52252 Ornithine decarboxylase N-terminal wing domain       
c.23.1.5 82344 N-terminal domain of the circadian clock protein KaiA    
c.23.1.6 142037 RcsC linker domain-like         
c.23.1.7 142040 AF1403 C-terminal domain-like