The Role of the Prod1 Membrane Anchor in Newt Limb Regeneration. (30th November 2016)

• Record Type: Journal Article
• Authors: Nomura, Kaoru; Tanimoto, Yasushi; Hayashi, Fumio; Harada, Erisa; Shan, Xiao‐Yuan; Shionyu, Masafumi; Hijikata, Atsushi; Shirai, Tsuyoshi; Morigaki, Kenichi; Shimamoto, Keiko
• Is Part Of: Angewandte Chemie. Volume 129:Number 1(2017)
• Page Start: 276
• Page End: 280
• Publication Date: 2016-11-30
• Subjects: Fluoreszenzmikroskopie -- Lipidverankerte Proteine -- NMR-Spektroskopie -- Wiederherstellung von Gliedmaßen; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201609703
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Prod1 is a protein that regulates limb regeneration in salamanders by determining the direction of limb growth. Prod1 is attached to the membrane by a glycosylphosphatidylinositol (GPI) anchor, but the role of membrane anchoring in the limb regeneration process is poorly understood. In this study, we investigated the functional role of the anchoring of Prod1 to the membrane by using its synthetic mimics in combination with solid‐state NMR spectroscopy and fluorescent microscopy techniques. Anchoring did not affect the three‐dimensional structure of Prod1 but did induce aggregation by aligning the molecules and drastically reducing the molecular motion on the two‐dimensional membrane surface. Interestingly, aggregated Prod1 interacted with Prod1 molecules tethered on the surface of opposing membranes, inducing membrane adhesion. Our results strongly suggest that anchoring of the salamander‐specific protein Prod1 assists cell adhesion in the limb regeneration process. Abstract : Viele kleine Beiträge : Synthetische Imitate eines GPI‐verankerten Proteins mit entscheidender Bedeutung für die Wiederherstellung von Gliedmaßen bei Molchen geben Aufschluss über die Funktion der Verankerung. Diese induziert die Proteinaggregation an der Membran und führt zu Wechselwirkungen zwischen verankerten Proteinen an gegenüberliegenden Membranen, welche die Membranadhäsion bewirken.