Protagenic Therapeutics, Inc., a biopharmaceutical company, engages in the discovery and development of therapeutics to treat stress-related neuropsychiatric and mood disorders. The company’s lead compound comprises PT00114, a synthetic form of teneurin carboxy-terminal associated peptide, an endogenous brain signaling peptide that can dampen overactive stress responses. Protagenic Therapeutics, Inc. is headquartered in New York, New York.