1eh5
From Proteopedia
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| , resolution 2.50Å | |||||||
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| Ligands: | , , | ||||||
| Activity: | Palmitoyl-protein hydrolase, with EC number 3.1.2.22 | ||||||
| Related: | 1EI9
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CRYSTAL STRUCTURE OF PALMITOYL PROTEIN THIOESTERASE 1 COMPLEXED WITH PALMITATE
Overview
Mutations in palmitoyl-protein thioesterase 1 (PPT1), a lysosomal enzyme that removes fatty acyl groups from cysteine residues in modified proteins, cause the fatal inherited neurodegenerative disorder infantile neuronal ceroid lipofuscinosis. The accumulation of undigested substrates leads to the formation of neuronal storage bodies that are associated with the clinical symptoms. Less severe forms of PPT1 deficiency have been found recently that are caused by a distinct set of PPT1 mutations, some of which retain a small amount of thioesterase activity. We have determined the crystal structure of PPT1 with and without bound palmitate by using multiwavelength anomalous diffraction phasing. The structure reveals an alpha/beta-hydrolase fold with a catalytic triad composed of Ser115-His289-Asp233 and provides insights into the structural basis for the phenotypes associated with PPT1 mutations.
About this Structure
1EH5 is a Single protein structure of sequence from Bos taurus. Full crystallographic information is available from OCA.
Reference
The crystal structure of palmitoyl protein thioesterase 1 and the molecular basis of infantile neuronal ceroid lipofuscinosis., Bellizzi JJ 3rd, Widom J, Kemp C, Lu JY, Das AK, Hofmann SL, Clardy J, Proc Natl Acad Sci U S A. 2000 Apr 25;97(9):4573-8. PMID:10781062
Page seeded by OCA on Sun Mar 30 20:02:34 2008
