PROBLEM TO BE SOLVED: To provide a novel peptide having an activity similar to that of the human amelogenin.SOLUTION: A partial peptide includes up to the C-terminal 29 amino acids of the complete-length human amelogenin, rh174, and includes C-terminal 7 amino acids thereof, has a cell growth promoting effect and a cell differentiation promoting effect similar to those of amelogenin, and can be used in various clinical applications requiring amelogenin effects.