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Journal ArticleDOI

A serine protease triad forms the catalytic centre of a triacylglycerol lipase.

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TLDR
The X-ray structure of the Mucor miehei triglyceride lipase is reported and the atomic model obtained reveals a Ser .. His .. Asp trypsin-like catalytic triad with an active serine buried under a short helical fragment of a long surface loop.
Abstract
True lipases attach triacylglycerols and act at an oil-water interface; they constitute a ubiquitous group of enzymes catalysing a wide variety of reactions, many with industrial potential. But so far the three-dimensional structure has not been reported for any lipase. Here we report the X-ray structure of the Mucor miehei triglyceride lipase and describe the atomic model obtained at 3.1 A resolution and refined to 1.9 A resolution. It reveals a Ser..His..Asp trypsin-like catalytic triad with an active serine buried under a short helical fragment of a long surface loop.

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Citations
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Journal ArticleDOI

The structure of Staphylococcus aureus epidermolytic toxin A, an atypic serine protease, at 1.7 Å resolution

TL;DR: Despite very low sequence homology between ETA and other trypsin-like serine proteases, the ETA crystal structure, together with biochemical data and site-directed mutagenesis studies, strongly confirms the classification of ETA in the Glu-endopeptidase family.
Journal ArticleDOI

Purification, immobilization, and stabilization of a lipase from Bacillus thermocatenulatus by interfacial adsorption on hydrophobic supports.

TL;DR: A lipase from Bacillus thermocatenulatus cloned in E. coli has been purified using a very simple method: interfacial activation on a hydrophobic support followed by desorption with Triton.
Journal ArticleDOI

Cloning, expression and characterization of a cDNA encoding a lipase from Rhizopus delemar.

TL;DR: It is concluded that the LIP cDNA is an essentially full-length analogue of the lipase-encoding gene of Rp.
Journal ArticleDOI

Purification, molecular cloning, and expression of lipase from Pseudomonas aeruginosa.

TL;DR: The results of alignment of the amino acid sequences of five lipases from Pseudomonas species considered together with the published crystal structure studied with human pancreatic lipase showed that Ser82, His251, and Asp209 were catalytic residues and that a surface loop from residues 172 to 204 was responsible for the substrate specificity.
Journal ArticleDOI

A putative lipase gene EXTRA GLUME1 regulates both empty-glume fate and spikelet development in rice

TL;DR: The cloning of the rice EXTRA GLUME1 gene reveals a novel pathway that regulates rice empty-glume fate and spikelet development and is probably responsible for the pleiotropic floral defects in eg1.
References
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Journal ArticleDOI

The Protein Data Bank: a computer-based archival file for macromolecular structures.

TL;DR: The Protein Data Bank is a computer-based archival file for macromolecular structures that stores in a uniform format atomic co-ordinates and partial bond connectivities, as derived from crystallographic studies.
Journal ArticleDOI

Solvent content of protein crystals.

TL;DR: An analysis of the solvent content of 116 different crystal forms of globular proteins found that in many cases this range will be sufficiently restrictive to enable the probable number of molecules in the crystallographic asymmetric unit to be determined directly from the molecular weight of the protein and the space group and unit cell dimensions of the crystal.
Journal ArticleDOI

A graphics model building and refinement system for macromolecules

TL;DR: A model building and refinement system is described for use with a Vector General 3400 display that has been used to assist in difference Fourier map interpretation at medium and high resolution, and to build a protein molecule into a multiple isomorphous replacement phased electron density map.
Book ChapterDOI

Stereochemically restrained refinement of macromolecular structures.

TL;DR: Some extensions of the current export versions of the programs that have been implemented or are envisioned are described, expected to be important in realizing the goal of producing refined structural models that reproduce the diffraction patterns to within the accuracy of the measured data and which are compatible with prior stereochemical knowledge of macromolecules.
Journal ArticleDOI

Human lipoprotein lipase complementary DNA sequence

TL;DR: Analysis of the sequence indicates that human lipoprotein lipase, hepaticlipase, and pancreatic lipase are members of a gene family that acts to hydrolyze triglycerides, providing free fatty acids for cells and affecting the maturation of circulating lipoproteins.
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