Results 61 to 70 of about 797,048 (304)

Specificity determinants for lysine incorporation in staphylococcus aureus peptidoglycan as revealed by the structure of a MurE enzyme ternary complex [PDF]

, 2013
Background: MurE controls stereo chemical incorporation of Lysine or diaminopimelate into peptidoglycan stem peptides Results: The structure of S.aureus MurE reveals an unexpected lack of specificity for Lysine within the active site.
Barreteau, Basavannacharya, Basavannacharya, Battye, Bertrand, Bertrand, Boniface, Boniface, Bouhss, Brünger, Bugg, Bugg, Chen, Clancy, Clarke, Clarke, Collaborative Computational Project, Number 4, Cox, Cressina, Crouvoisier, Cruickshank, De Lencastre, DeLano, Emsley, Ernst, Ernst, Favini-Stabile, Figueiredo, Gardete, Girardin, Gordon, Gorrec, Huber, Hutton, Jones, Kabsch, Lee, Liebeke, Lloyd, Lloyd, Lundqvist, Lysenko, Matteï, McCoy, Mei, Mengin-Lecreulx, Mengin-Lecreulx, Mohammadi, Murshudov, Münch, Ornelas-Soares, Painter, Paradis-Bleau, Paradis-Bleau, Patin, Perdih, Ray, Read, Royet, Sauvage, Scheffers, Schneider, Schouten, Smith, Sosič, Sova, Thedieck, Vagin, Vollmer, Vollmer, Walker, Young, Zawadzke   +72 more
core   +2 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Substrate Specificity of a Cationic Peptidase from L

Natural Product Communications, 2008
A cationic peptidase, named hemisphaericin-C, has been purified from the juice of Bromelia hemisphaerica fruits by ammonium sulfate precipitation, gel filtration on Sephadex G-75 and cationic exchange chromatography on carboxymethyl cellulose (CMC), to ...
Cortés-Vázquez Ma. Isabel, Muñoz-Sánchez José Luis, Briones-Martínez Roberto   +2 more
doaj   +1 more source

Activation and substrate specificity of the human P4-ATPase ATP8B1

Nature Communications, 2023
Asymmetric distribution of phospholipids in eukaryotic membranes is essential for cell integrity, signaling pathways, and vesicular trafficking. P4-ATPases, also known as flippases, participate in creating and maintaining this asymmetry through active ...
Thibaud Dieudonné, Felix Kümmerer, Michelle Juknaviciute Laursen, Charlott Stock, Rasmus Kock Flygaard, Syma Khalid, Guillaume Lenoir, Joseph A. Lyons, Kresten Lindorff-Larsen, Poul Nissen   +9 more
doaj   +1 more source

Engineering of Cyclodextrin Product Specificity and pH Optima of the Thermostable Cyclodextrin Glycosyltransferase from Thermoanaerobacterium thermosulfurigenes EM1 [PDF]

, 1998
The product specificity and pH optimum of the thermostable cyclodextrin glycosyltransferase (CGTase) from Thermoanaerobacterium thermosulfurigenes EM1 was engineered using a combination of x-ray crystallography and site-directed mutagenesis.
Bauke W. Dijkstra, Bhat, Bradford, Brünger, Davies, Engh, Fujiwara, Haeckel, Harata, Jones, Joost C.M. Uitdehaag, Kabsch, Klein, Klein, Kleywegt, Knegtel, Knegtel, Koshland, Lamzin, Laskowski, Lawson, Lazzaroni, Lubbert Dijkhuizen, Monma, Nakamura, Nakamura, Norman, Pedersen, Penninga, Qian, Read, Reinetta M. Buitelaar, Richèle D. Wind, Sambrook, Sanger, Schmid, Starnes, Strokopytov, Strokopytov, Svensson, Takase, Takusagawa, Tronrud, Wind, Yanisch-Perron   +44 more
core   +2 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Conformational Changes in the Metallo-β-lactamase ImiS During the Catalytic Reaction: An EPR Spectrokinetic Study of Co(II)-Spin Label Interactions [PDF]

, 2008
Metallo-β-lactamases are responsible for conferring antibiotic resistance on certain pathogenic bacteria. In consequence, the search for inhibitors that may be useful in combating antibiotic resistance has fueled much study of the active sites of these ...
Bennett, Brian, Crowder, Michael W., Hu, Zhenxin, Sharma, Narayan   +3 more
core   +2 more sources

Substrate specificity of haloalkane dehalogenases [PDF]

Biochemical Journal, 2011
An enzyme's substrate specificity is one of its most important characteristics. The quantitative comparison of broad-specificity enzymes requires the selection of a homogenous set of substrates for experimental testing, determination of substrate-specificity data and analysis using multivariate statistics.
Tana, Koudelakova, Eva, Chovancova, Jan, Brezovsky, Marta, Monincova, Andrea, Fortova, Jiri, Jarkovsky, Jiri, Damborsky   +6 more
openaire   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Integrative genomic mining for enzyme function to enable engineering of a non-natural biosynthetic pathway. [PDF]

, 2015
The ability to biosynthetically produce chemicals beyond what is commonly found in Nature requires the discovery of novel enzyme function. Here we utilize two approaches to discover enzymes that enable specific production of longer-chain (C5-C8) alcohols
Baker, David, Bertolani, Steve, Liao, James C, Mak, Wai Shun, Marcheschi, Ryan, Siegel, Justin B, Thompson, James, Tran, Stephen   +7 more
core   +1 more source