1CFB

CRYSTAL STRUCTURE OF TANDEM TYPE III FIBRONECTIN DOMAINS FROM DROSOPHILA NEUROGLIAN AT 2.0 ANGSTROMS

Summary for 1CFB

• Entry DOI: 10.2210/pdb1cfb/pdb
• Descriptor: DROSOPHILA NEUROGLIAN, 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose, 2-acetamido-2-deoxy-beta-D-glucopyranose, ... (6 entities in total)
• Functional Keywords: neural adhesion molecule
• Biological source: Drosophila melanogaster (fruit fly)
• Total number of polymer chains: 1
• Total formula weight: 23808.05

Authors

Huber, A.H.,Wang, Y.E.,Bieber, A.J.,Bjorkman, P.J. (deposition date: 1994-08-27, release date: 1994-11-30, Last modification date: 2024-10-30)

Primary citation

Huber, A.H.,Wang, Y.M.,Bieber, A.J.,Bjorkman, P.J.
Crystal structure of tandem type III fibronectin domains from Drosophila neuroglian at 2.0 A.
Neuron, 12:717-731, 1994

PubMed Abstract: We report the crystal structure of two adjacent fibronectin type III repeats from the Drosophila neural cell adhesion molecule neuroglian. Each domain consists of two antiparallel beta sheets and is folded topologically identically to single fibronectin type III domains from the extracellular matrix proteins tenascin and fibronectin. beta bulges and left-handed polyproline II helices disrupt the regular beta sheet structure of both neuroglian domains. The hydrophobic interdomain interface includes a metal-binding site, presumably involved in stabilizing the relative orientation between domains and predicted by sequence comparision to be present in the vertebrate homolog molecule L1. The neuroglian domains are related by a near perfect 2-fold screw axis along the longest molecular dimension. Using this relationship, a model for arrays of tandem fibronectin type III repeats in neuroglian and other molecules is proposed.

PubMed: 7512815
DOI: 10.1016/0896-6273(94)90326-3

Experimental method

X-RAY DIFFRACTION (2 Å)