Abstract：
:In the present study steered molecular dynamics simulations were applied to investigate the unbinding process of the complex of human carbonic anhydrase with the natural HCO3(-) and promiscuous H2NCOHN(-) products. This process is crucial for restoring the catalytic cycle of the enzyme. This investigation set out to give further insights on the release mechanism involved in the case of the promiscuous product believed suicide inhibitor for the hCAII against the natural final product. In particular, on the basis of the NPT molecular dynamics simulations performed on the bicarbonate, the penta-coordinated complex with the water is observed, while in the case of the ureate the same event does not take place. At this purpose the calculated potential of mean force based on the steered molecular dynamics (SMD) simulations shed light on an optimal pathway for the releasing of the products.
journal_name
Arch Biochem Biophysjournal_title
Archives of biochemistry and biophysicsauthors
Piazzetta P,Marino T,Russo Ndoi
10.1016/j.abb.2015.03.022subject
Has Abstractpub_date
2015-09-15 00:00:00pages
101-6eissn
0003-9861issn
1096-0384pii
S0003-9861(15)00158-7journal_volume
582pub_type
杂志文章abstract：:Activation of different forms of adenylate cyclases (AC) by forskolin and displacement of [14,15-3H]dihydroforskolin binding from membranes by forskolin in the absence or presence of specific stimulatory hormone and beta, gamma-imidoguanosine 5'-triphosphate (Gpp(NH)p) have been studied. These conditions have been use...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(86)90062-7
更新日期：1986-11-15 00:00:00
abstract：:The important characteristic of novel Mimosa pudica tubulin is its ability to bind colchicine only when dithiothreitol is included in the isolation buffer, indicating the involvement of sulfhydryl groups in colchicine binding. Modification of sulfhydryl groups by a sulfhydryl modifying agent also affects the normal as...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(92)90695-s
更新日期：1992-05-01 00:00:00
abstract：:In an effort to identify and characterize minor forms of human liver cytochrome P450, immunoblot analyses of microsome samples were developed with antibodies to various P450s that recognized multiple human P450s. Four P450s were recognized in immunoblot analyses of human liver microsome samples developed with an antib...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1993.1506
更新日期：1993-10-01 00:00:00
abstract：:Increasing evidence suggests that long non-coding RNAs (lncRNAs) are implicated with chemoresistance of cancers. However, their functional role and molecular mechanisms in colorectal cancer (CRC) chemoresistance are still largely unclear. In this work, we aimed to investigate the functional role of lncRNA cancer susce...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2019.01.005
更新日期：2019-03-15 00:00:00
abstract：:The gene of the human fatty acid omega-hydroxylase, CYP4A11, has been isolated from a human BAC library, and its complete genomic sequence has been determined. The CYP4A11 gene spanned 12,568 bp and contained 12 exons. The known PPAR recognition elements (PPRE), which were reported to be involved in the induction of C...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.2000.1831
更新日期：2000-06-15 00:00:00
abstract：:With the concept of precision medicine, combining multiple molecular-targeting therapies has brought new approaches to current cancer treatments. Malfunction of the tumor suppressor protein, p53 is a universal hallmark in human cancers. Under normal conditions, p53 is degraded through an ubiquitin-proteosome pathway r...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2018.04.004
更新日期：2018-06-01 00:00:00
abstract：:The cytochrome P-450-dependent cholesterol side chain cleavage system of the brain has been studied using nonsynaptic mitochondria as the source of enzymatic activity. The system has been found to bind cholesterol and 11-deoxycorticosterone, producing type I difference spectra, whereas the binding of pregnenolone indu...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(87)90142-1
更新日期：1987-05-01 00:00:00
abstract：:Adenylate kinase (Adk) that catalyses the synthesis of ADP from ATP and AMP has also been shown to perform an ATP dependent phosphorylation of ribo- and deoxynucleoside diphosphates to their corresponding nucleoside triphosphate; ATP+(d)NDP<-->ADP+(d)NTP. This reaction, suggested to occur by the transfer of the gamma-...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2005.10.003
更新日期：2005-12-15 00:00:00
abstract：:Solar radiation is one of the most important environmental stress agents for human skin, causing sunburn, premature skin aging, and skin cancer. Beta-carotene is discussed to protect against photooxidative stress and thus prevent skin damage. Though beta-carotene has been successfully used against photosensitivity in ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章,评审
doi：10.1006/abbi.2001.2313
更新日期：2001-05-01 00:00:00
abstract：:In this study, the binding points of MethB and two structurally-related cationic phenoxazine dyes [meldola blue (MB) and nile blue (NB)] to human butyrylcholinesterase (BChE) were investigated by molecular docking and site directed mutagenesis. The comparative inhibitory effects of MethB, MB and NB on recombinant wild...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2013.01.003
更新日期：2013-04-01 00:00:00
abstract：:Production of hydroxyl radicals (HO.) by substrate-supplemented beef heart submitochondrial particles was studied by electron paramagnetic resonance in conjunction with the spin trap 5,5'-dimethyl-1-pirroline-N-oxide (DMPO). Supplementation of submitochondrial particles with NADH or succinate in the presence of antimy...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1995.1122
更新日期：1995-02-01 00:00:00
abstract：:A deficiency in microsomal glucose-6-phosphatase (G6Pase) activity causes glycogen storage disease type 1 (GSD-1), a clinically and biochemically heterogeneous group of diseases. It has been suggested that catalysis by G6Pase involves multiple components, with defects in the G6Pase catalytic unit causing GSD-1a and de...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1998.0849
更新日期：1998-10-01 00:00:00
abstract：:A number of glycosphingolipids, including 10 gangliosides, not previously identified in human plasma have been characterized. The plasma contains 2 micrograms of lipid-bound sialic acid/ml plasma and 54% of the gangliosides are monosialo, 30% disialo, 10% trisialo, and 6% tetrasialo. Individual glycosphingolipids were...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(85)90179-1
更新日期：1985-05-01 00:00:00
abstract：:Systemic exposure to gram-negative bacterial substances such as lipopolysaccharide (LPS, or endotoxin) induces an uncontrolled, massive inflammatory reaction which culminates in multiple system organ failure and death. Septic shock often does not respond to corticosteroids; however, certain low-molecular-weight antiox...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1999.1159
更新日期：1999-05-01 00:00:00
abstract：:The interactions between various dietary cancer chemopreventive phytochemicals in drug transporter functions are not well studied. In this study, the effects of genistein and resveratrol on the multidrug resistance protein 2 (MRP2) expression and the underlying molecular mechanisms were investigated using HepG2-C3 cel...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2011.06.004
更新日期：2011-08-15 00:00:00
abstract：:The reaction mechanism of selenocystine beta-lyase has been studied and it was found that elemental selenium is released enzymatically from selenocysteine, and reduced to H2Se nonenzymatically with dithiothreitol or some other reductants that are added to prepare selenocysteine from selenocystine in the anaerobic reac...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(85)90182-1
更新日期：1985-05-01 00:00:00
abstract：:Two N-terminal fusion proteins combining Escherichia coli maltose-binding protein (MBP) and the 12-transmembrane-segment pBR322 tetracycline resistance protein (Tet) have been constructed to determine the strength and location of topology control signals within the N-terminal portion of the Tet protein. The fusions co...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1995.1487
更新日期：1995-10-01 00:00:00
abstract：:It has been proposed that negatively charged amino acids on the surface of reductase and positively charged amino acids on the surface of P450 mediate the binding of both proteins through electrostatic interactions. In this study, we used a site-directed mutagenesis approach to determine a role for two lysine residues...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.2000.2174
更新日期：2001-01-15 00:00:00
abstract：:We have isolated an activator of collagenase from medium conditioned with articular cartilage. The activity is contained in an acidic protein appearing as a doublet band of Mr 57,000 and 56,000 on sodium dodecyl sulfate polyacrylamide gels. Both components of the doublet have identical isoelectric points as demonstrat...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(86)90381-4
更新日期：1986-12-01 00:00:00
abstract：:Numerous conditions induce expression of manganese-containing superoxide dismutase (MnSOD) in mammalian cells. The reported inducers of MnSOD are all agents that activate two transcription factors, AP-1 and NF kappa B, but several reports have suggested that MnSOD induction relies solely on NF kappa B. We investigated...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.1997.0355
更新日期：1997-12-15 00:00:00
abstract：:Fresh human A1 erythrocytes, washed and pretreated in phosphate buffer with or without papain, were incubated at 37 degrees C with blood group-degrading enzymes from the human fecal Ruminococcus torques strain IX-70. The effects were assayed as changes in hemagglutination patterns, and blood group activities of alkali...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(91)90546-u
更新日期：1991-11-01 00:00:00
abstract：:The specific activity of cytochrome P450-linked coumarin 7-hydroxylase (COH) of hepatic mitoplasts from DBA/2N mice is up to 55% as great as the microsomal activity. According to Western blot and immunodiffusion analysis and inhibition studies with anti-P450Coh and metyrapone, the mitoplastic P450Coh had the same mole...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(88)90063-x
更新日期：1988-12-01 00:00:00
abstract：:Prothymosin alpha, a polypeptide of 109 to 111 amino acid residues, contains the entire thymosin alpha 1 sequence (residues 1-28) at its amino terminal. Human peripheral blood monocytes incubated with prothymosin alpha release thymosin alpha 1 in the culture supernatants. In addition total RNA is found to increase. Th...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(92)90570-m
更新日期：1992-07-01 00:00:00
abstract：:Bovine pancreatic trypsin inhibitor (BPTI) and tick anticoagulant peptide (TAP) are two structurally homologous proteins, which have been shown to exhibit distinct mechanisms of oxidative folding. We demonstrate here differences of their folding properties using the technique of disulfide scrambling. Two extensively u...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2005.02.031
更新日期：2005-05-01 00:00:00
abstract：:A cyanide-insensitive superoxide dismutase was purified to electrophoretic homogeneity from leaves of the eucaryote, Ginkgo biloba L. A molecular mass of 47,000 was determined for the enzyme, which consisted of two subunits of equal size. The enzyme preparation contained two isoenzymes with isoelectric points of 5.25 ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(85)90800-8
更新日期：1985-11-15 00:00:00
abstract：:In the absence of NADPH, the addition of an arachidonic acid hydroperoxide, 15-hydroperoxyeicosa-5,8,11,13-tetraenoic acid, to liver microsomes, prepared from phenobarbital-treated rats, resulted in the formation of two major metabolites and several minor products, some of which have been purified by reverse-phase hig...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(87)90039-7
更新日期：1987-01-01 00:00:00
abstract：:Peroxynitrite, a biological oxidant formed from the reaction of nitric oxide with the superoxide radical, is associated with many pathologies, including neurodegenerative diseases, such as multiple sclerosis (MS). Gout (hyperuricemic) and MS are almost mutually exclusive, and uric acid has therapeutic effects in mice ...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1006/abbi.2000.1721
更新日期：2000-04-15 00:00:00
abstract：:Archaeal replication machinery represents a core version of this in eukaryotes. The crenarchaeon Sulfolobus solfataricus has the potential to be a powerful model system to understand the central mechanism of eukaryotic DNA replication because it contains three active origins of replication and three eukaryote-like Orc...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/j.abb.2008.01.007
更新日期：2008-03-15 00:00:00
abstract：:Phosphatidylserine formation and decarboxylation are decreased in Tetrahymena in which phosphatidylethanolamine has been replaced by its isosteric analog 3-aminopropylphosphonolipid (1,2-diacylglyceryl-3-O-(3-aminopropylphosphonate). The combined activity of the phosphatidylethanolamine: serine phosphatidyltransferase...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(84)90433-8
更新日期：1984-05-01 00:00:00
abstract：:The ability of nine phospholipids to alter the activity of low-Km cyclic AMP phosphodiesterase was examined in microsomal fractions of rat adipocytes. The enzyme was activated by phosphatidylserine (21% at 300 microM) and phosphatidylglycerol (36% at 300 microM). The activation was concentration dependent over the ran...
journal_title：Archives of biochemistry and biophysics
pub_type： 杂志文章
doi：10.1016/0003-9861(83)90015-2
更新日期：1983-08-01 00:00:00
