Precise Patch (IMAGE) Brown University Caption New findings from applying a 'patch clamp' to the melanosomes of cells suggest that problems with an ion channel in the melanosome underly the lack of melanin production in albinism. Credit Oancea lab/Brown University Usage Restrictions with credit License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.