1lr5
From Proteopedia
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| , resolution 1.9Å | |||||||
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| Ligands: | , , , | ||||||
| Related: | 1LRH
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of auxin binding protein
Overview
The structure of auxin-binding protein 1 (ABP1) from maize has been determined at 1.9 A resolution, revealing its auxin-binding site. The structure confirms that ABP1 belongs to the ancient and functionally diverse germin/seed storage 7S protein superfamily. The binding pocket of ABP1 is predominantly hydrophobic with a metal ion deep inside the pocket coordinated by three histidines and a glutamate. Auxin binds within this pocket, with its carboxylate binding the zinc and its aromatic ring binding hydrophobic residues including Trp151. There is a single disulfide between Cys2 and Cys155. No conformational rearrangement of ABP1 was observed when auxin bound to the protein in the crystal, but examination of the structure reveals a possible mechanism of signal transduction.
About this Structure
1LR5 is a Single protein structure of sequence from Zea mays. Full crystallographic information is available from OCA.
Reference
Crystal structure of auxin-binding protein 1 in complex with auxin., Woo EJ, Marshall J, Bauly J, Chen JG, Venis M, Napier RM, Pickersgill RW, EMBO J. 2002 Jun 17;21(12):2877-85. PMID:12065401
Page seeded by OCA on Sun Mar 30 22:06:18 2008
