4UI2

Crystal structure of the ternary RGMB-BMP2-NEO1 complex

4UI2 の概要

• エントリーDOI: 10.2210/pdb4ui2/pdb
• 関連するPDBエントリー: 4UHY 4UHZ 4UI0 4UI1
• 分子名称: NEOGENIN, BONE MORPHOGENETIC PROTEIN 2, BMP2, REPULSIVE GUIDANCE MOLECULE C, RGMC, HEMOJUVELIN, ... (7 entities in total)
• 機能のキーワード: repulsive guidance molecule, bone morphogenetic protein pathway, hemojuvelin, morphogen, axon guidance, cell surface receptor signaling, neogenin, signaling protein
• 由来する生物種: HOMO SAPIENS (HUMAN); 詳細
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 84505.59

構造登録者

Healey, E.G.,Bishop, B.,Elegheert, J.,Bell, C.H.,Padilla-Parra, S.,Siebold, C. (登録日: 2015-03-27, 公開日: 2015-05-06, 最終更新日: 2025-10-01)

主引用文献

Healey, E.G.,Bishop, B.,Elegheert, J.,Bell, C.H.,Padilla-Parra, S.,Siebold, C.
Repulsive Guidance Molecule is a Structural Bridge between Neogenin and Bone Morphogenetic Protein.
Nat.Struct.Mol.Biol., 22:458-, 2015

PubMed Abstract: Repulsive guidance molecules (RGMs) control crucial processes including cell motility, adhesion, immune-cell regulation and systemic iron metabolism. RGMs signal via the neogenin (NEO1) and the bone morphogenetic protein (BMP) pathways. Here, we report crystal structures of the N-terminal domains of all human RGM family members in complex with the BMP ligand BMP2, revealing a new protein fold and a conserved BMP-binding mode. Our structural and functional data suggest a pH-linked mechanism for RGM-activated BMP signaling and offer a rationale for RGM mutations causing juvenile hemochromatosis. We also determined the crystal structure of the ternary BMP2-RGM-NEO1 complex, which, along with solution scattering and live-cell super-resolution fluorescence microscopy, indicates BMP-induced clustering of the RGM-NEO1 complex. Our results show how RGM acts as the central hub that links BMP and NEO1 and physically connects these fundamental signaling pathways.

PubMed: 25938661
DOI: 10.1038/NSMB.3016

実験手法

X-RAY DIFFRACTION (3.15 Å)