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M2910

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Smaranda Craciun et al.
Proceedings of the National Academy of Sciences of the United States of America, 109(52), 21307-21312 (2012-11-16)
Choline and trimethylamine (TMA) are small molecules that play central roles in biological processes throughout all kingdoms of life. These ubiquitous metabolites are linked through a single biochemical transformation, the conversion of choline to TMA by anaerobic microorganisms. This metabolic...
Harsimran Singh et al.
The Journal of biological chemistry, 288(51), 36189-36200 (2013-11-08)
Fe-S clusters are critical metallocofactors required for cell function. Fe-S cluster biogenesis is carried out by assembly machinery consisting of multiple proteins. Fe-S cluster biogenesis proteins work together to mobilize sulfide and iron, form the nascent cluster, traffic the cluster...
Christina M Kronfel et al.
Biochemistry, 52(48), 8663-8676 (2013-11-13)
Cyanobacterial phycobiliproteins have evolved to capture light energy over most of the visible spectrum due to their bilin chromophores, which are linear tetrapyrroles that have been covalently attached by enzymes called bilin lyases. We report here the crystal structure of...
Melanie A Miller et al.
Nucleic acids research, 42(6), 3954-3970 (2013-12-29)
The Puf family of RNA-binding proteins regulates gene expression primarily by interacting with the 3' untranslated region (3' UTR) of targeted mRNAs and inhibiting translation and/or stimulating decay. Physical association and computational analyses of yeast Puf3p identified >150 potential mRNA...
Siddhesh S Kamat et al.
Biochemistry, 52(42), 7366-7368 (2013-10-12)
The C-P lyase complex in bacteria catalyzes the transformation of phosphonates to orthophosphate under conditions of phosphate starvation. The first committed step in the C-P lyase-catalyzed reaction is the displacement of adenine from MgATP by phosphonate substrates, yielding ribose-1-phosphonate-5-triphosphate. In...
Jung-Gun Kim et al.
Cell host & microbe, 13(2), 143-154 (2013-02-19)
XopD, a type III secretion effector from Xanthomonas euvesicatoria (Xcv), the causal agent of bacterial spot of tomato, is required for pathogen growth and delay of host symptom development. XopD carries a C-terminal SUMO protease domain, a host range determining...
Nathan B P Adams et al.
The Journal of biological chemistry, 288(40), 28727-28732 (2013-08-14)
Magnesium chelatase is an AAA(+) ATPase that catalyzes the first step in chlorophyll biosynthesis, the energetically unfavorable insertion of a magnesium ion into a porphyrin ring. This enzyme contains two AAA(+) domains, one active in the ChlI protein and one...
Ran Zhang et al.
Gene, 544(2), 191-197 (2014-04-29)
To study the assembly of phycocyanin β subunit, the gene cpcT was first cloned from Arthrospira platensis FACHB314. To explore the function of cpcT, the DNA of phycocyanin β subunit and cpcT were transformed into Escherichia coli BL21 with the...
Robert P Hayes et al.
The Journal of biological chemistry, 288(40), 28447-28456 (2013-08-21)
TftG, 5-chloro-2-hydroxyhydroquinone (5-CHQ) dehydrochlorinase, is involved in the biodegradation of 2,4,5-trichlorophenoxyacetate by Burkholderia phenoliruptrix AC1100. It belongs to the YCII superfamily, a group of proteins with largely unknown function. In this work, we utilized structural and functional studies, including the...
Sarah Vergult et al.
Molecular vision, 19, 311-318 (2013-02-13)
Microphthalmia with linear skin defects syndrome (MLS or MIDAS, OMIM #309801) is a rare X-linked male-lethal disorder characterized by microphthalmia or other ocular anomalies and skin lesions limited to the face and neck. However, inter- and intrafamilial variability is high....
Anthony Bretaudeau et al.
Nucleic acids research, 41(Database issue), D396-D401 (2012-11-24)
CyanoLyase (http://cyanolyase.genouest.org/) is a manually curated sequence and motif database of phycobilin lyases and related proteins. These enzymes catalyze the covalent ligation of chromophores (phycobilins) to specific binding sites of phycobiliproteins (PBPs). The latter constitute the building bricks of phycobilisomes...
Bruna P Selbach et al.
Biochemistry, 52(23), 4089-4096 (2013-05-16)
The first step in sulfur mobilization for the biosynthesis of Fe-S clusters under oxidative stress and iron starvation in Escherichia coli involves a cysteine desulfurase SufS. Its catalytic reactivity is dependent on the presence of a sulfur acceptor protein, SufE...
Birgit Geueke et al.
Applied and environmental microbiology, 79(19), 6180-6183 (2013-07-23)
δ-Hexachlorocyclohexane (δ-HCH), one of the prevalent isomers of technical HCH, was enantioselectively dehydrochlorinated by the dehydrochlorinases LinA1 and LinA2 from Sphingobium indicum B90A to the very same δ-pentachlorocyclohexene enantiomer. Racemic δ-pentachlorocyclohexene, however, was transformed with opposite enantioselectivities by the two...
Alessia Indrieri et al.
EMBO molecular medicine, 5(2), 280-293 (2012-12-15)
Mitochondrial-dependent (intrinsic) programmed cell death (PCD) is an essential homoeostatic mechanism that selects bioenergetically proficient cells suitable for tissue/organ development. However, the link between mitochondrial dysfunction, intrinsic apoptosis and developmental anomalies has not been demonstrated to date. Now we provide...
Fernando Guerrero et al.
PloS one, 7(11), e50470-e50470 (2012-11-28)
The ethylene-forming enzyme (EFE) from Pseudomonas syringae catalyzes the synthesis of ethylene which can be easily detected in the headspace of closed cultures. A synthetic codon-optimized gene encoding N-terminal His-tagged EFE (EFEh) was expressed in Synechocystis sp. PCC 6803 (Synechocystis)...
Sangwoo Kim et al.
Biochemical and biophysical research communications, 435(2), 255-259 (2013-05-07)
Tuberculosis is a lethal infectious disease caused by Mycobacterium tuberculosis. We determined the crystal structure of Rv2606c, a potential pyridoxal biosynthesis lyase (PdxS), from M. tuberculosis H37Rv at 1.8 Å resolution. The overall structure of the protein, composed of a...
Allison F Jaworski et al.
Archives of biochemistry and biophysics, 538(2), 138-144 (2013-08-24)
Cystathionine β-lyase (CBL) catalyzes the hydrolysis of l-cystathionine (l-Cth), producing l-homocysteine (l-Hcys), pyruvate and ammonia, in the second step of the transsulfuration pathway of bacteria and plants. A series of 17 site-directed variants of Escherichia coli CBL (eCBL) was constructed...
Converging on a mechanism for choline degradation.
Christopher J Thibodeaux et al.
Proceedings of the National Academy of Sciences of the United States of America, 109(52), 21184-21185 (2012-12-18)
E I Parker et al.
The British journal of radiology, 87(1033), 20130467-20130467 (2013-11-16)
Lysosomal storage diseases (LSDs) are a large group of genetic metabolic disorders that result in the accumulation of abnormal material, such as mucopolysaccharides, glycoproteins, amino acids and lipids, within cells. Since many LSDs manifest during infancy or early childhood, with...
Xiao-Feng Zhang et al.
Plant molecular biology, 83(3), 205-218 (2013-06-21)
Previous study showed that the magnesium-protoporphyrin IX chelatase H subunit (CHLH/ABAR) positively regulates abscisic acid (ABA) signaling. Here, we investigated the functions of a CHLH/ABAR interaction protein, the chloroplast co-chaperonin 20 (CPN20) in ABA signaling in Arabidopsis thaliana. We showed...
Ankit S Macwan et al.
PloS one, 7(11), e50373-e50373 (2012-12-05)
Hexachlorocyclohexane dehydrochlorinase (LinA) mediates dehydrochlorination of γ-HCH to 1, 3, 4, 6-tetrachloro-1,4-cyclohexadiene that constitutes first step of the aerobic degradation pathway. We report the 3.5 Å crystal structure of a thermostable LinA-type2 protein, obtained from a soil metagenome, in the...
Brian San Francisco et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(9), E788-E797 (2012-11-15)
Proper functioning of the mitochondrion requires the orchestrated assembly of respiratory complexes with their cofactors. Cytochrome c, an essential electron carrier in mitochondria and a critical component of the apoptotic pathway, contains a heme cofactor covalently attached to the protein...
Kathleen M Meneely et al.
Archives of biochemistry and biophysics, 539(1), 70-80 (2013-09-24)
The isochorismate and salicylate synthases are members of the MST family of enzymes. The isochorismate synthases establish an equilibrium for the conversion chorismate to isochorismate and the reverse reaction. The salicylate synthases convert chorismate to salicylate with an isochorismate intermediate;...
Adrienne L Manders et al.
Biochimica et biophysica acta, 1834(6), 1044-1053 (2013-03-09)
Cystathionine γ-synthase (CGS) and cystathionine β-lyase (CBL) share a common structure and several active-site residues, but catalyze distinct side-chain rearrangements in the two-step transsulfuration pathway that converts cysteine to homocysteine, the precursor of methionine. A series of 12 chimeric variants...
Marylou Machingura et al.
Plant physiology and biochemistry : PPB, 63, 159-169 (2012-12-25)
The β-cyanoalanine pathway is primarily responsible for detoxification of excess cyanide produced by plants. Recent evidence suggests that cyanide detoxification via this pathway may be involved in the response and tolerance to water deficit in plants. The aim of this...
Mariam Traoré et al.
Organic letters, 16(13), 3588-3591 (2014-06-25)
Aza-peptides with basic amino acid residues (lysine, ornithine, arginine) and derivatives were synthesized by an effective approach featuring alkylation of a hydrazone-protected aza-glycine residue with α-bromo ω-chloro propane and butane to provide the corresponding alkyl chloride side chains. Displacement of...
Miho Tatsuki et al.
Journal of experimental botany, 64(4), 1049-1059 (2013-02-01)
The fruit of melting-flesh peach (Prunus persica L. Batsch) cultivars produce high levels of ethylene caused by high expression of PpACS1 (an isogene of 1-aminocyclopropane-1-carboxylic acid synthase), resulting in rapid fruit softening at the late-ripening stage. In contrast, the fruit...
Ashraf S El-Sayed et al.
Journal of microbiology and biotechnology, 23(4), 499-510 (2013-04-10)
Among 25 isolates, Aspergillus fumigatus ASH (JX006238) was identified as a potent producer of homocysteine gamma- lyase. The nutritional requirements to maximize the enzyme yield were optimized under submerged (SF) and solid-state fermentation (SSF) conditions, resulting in a 5.2- and...
China N Byrns et al.
The Journal of biological chemistry, 289(14), 9662-9674 (2014-02-13)
Selenoproteins are a unique family of proteins, characterized by the co-translational incorporation of selenium as selenocysteine, which play key roles in antioxidant defense. Among selenoproteins, selenoprotein P (Sepp1) is particularly distinctive due to the fact that it contains multiple selenocysteine...
Alessia Indrieri et al.
American journal of human genetics, 91(5), 942-949 (2012-11-06)
Microphthalmia with linear skin lesions (MLS) is an X-linked dominant male-lethal disorder associated with mutations in holocytochrome c-type synthase (HCCS), which encodes a crucial player of the mitochondrial respiratory chain (MRC). Unlike other mitochondrial diseases, MLS is characterized by a...
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