The article discusses the research on the importance of ATP hydrolysis by the mophogenic coat protein SpoIVA in spore-coat formation. The study confirmed that SpoIVA Walker motif affects the spore formation, in which mutations in the motif can block sporultation and recruitment of other coat proteins. It was also found in the molecular probe that nucleotide hydrolysis enables the formation of high-molecular-weight oligometric complexes which forms strings composed of SpoIVA filaments.