beta-alanine + L-histidine + ATP => carnosine + ADP + phosphate + H(+)
beta-alanine + l-histidine + atp => carnosine + adp + phosphate + h(+)
beta-alanine + L-histidine + ATP => carnosine + ADP + phosphate + H(+)
beta-alanine + l-histidine + atp => carnosine + adp + phosphate + h(+)