Abstract：
:Since the discovery of the first E. coli mutator gene, mutT, most of the mutations inducing elevated spontaneous mutation rates could be clearly attributed to defects in DNA repair. MutT turned out to be a pyrophosphohydrolase hydrolyzing 8-oxodGTP, thus preventing its incorporation into DNA and suppresing the occurrence of spontaneous AT-->CG transversions. Most of the bacterial mutator genes appeared to be evolutionarily conserved, and scientists were continuously searching for contribution of DNA repair deficiency in human diseases, especially carcinogenesis. Yet a human MutT homologue--hMTH1 protein--was found to be overexpressed rather than inactivated in many human diseases, including cancer. The interest in DNA repair contribution to human diseases exploded with the observation that germline mutations in mismatch repair (MMR) genes predispose to hereditary non-polyposis colorectal cancer (HNPCC). Despite our continuously growing knowledge about DNA repair we still do not fully understand how the mutator phenotype contributes to specific forms of human diseases.
journal_name
Acta Biochim Poljournal_title
Acta biochimica Polonicaauthors
Arczewska KD,Kuśmierek JTsubject
Has Abstractpub_date
2007-01-01 00:00:00pages
435-57issue
3eissn
0001-527Xissn
1734-154Xpii
20071537journal_volume
54pub_type
杂志文章,评审abstract：:The endogenous electric field may provide an important signal for directional cell migration during cancer metastasis but the mechanism of cell electrotaxis is poorly understood. It was postulated that microtubules play a central role in the polarization and directional migration of several types of cells. In this pap...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：10.18388/abp.2015_1019
更新日期：2015-01-01 00:00:00
abstract：:Analysis of 664 known structures of protein kinase complexes with halogenated ligands revealed 424 short contacts between a halogen atom and a potential protein X-bond acceptor, the topology and geometry of which were analyzed according to the type of a halogen atom (X = Cl, Br, I) and a putative protein X-bond accept...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章,评审
doi：10.18388/abp.2015_1106
更新日期：2016-01-01 00:00:00
abstract：:1. The interaction of copper(II) with inosine, 2'-deoxyinosine, 1-methylinosine, 7-deazainosine, 6-methoxypurine riboside and IMP was examined. 2. Copper binds with the purine base of the nucleosides, and in IMP also with the phosphate group. Non interaction with ribose hydroxyl groups was observed. 3. In non-aqueous ...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1978-01-01 00:00:00
abstract：:Cytosine nucleoside deaminase (EC 3.5.4.5) from Salmonella typhimurium LT2 catalyses the deamination of ribo-, deoxyribo- and arabinosyl nucleosides of cytosine alkylated at the C-5, but not at the N3 or exocyclic N4, of the pyrimidine ring. The enzyme was inert towards analogues etherified at the 3'-OH and 5'-OH of t...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1975-01-01 00:00:00
abstract：:In situ PCR and in situ reverse transcription PCR (RT-PCR) were applied to discriminate between latent and productive infection of human cytomegalovirus (HCMV) in leukocytes. We investigated 28 samples, in which viral pp65 antigen was detected only in the cytoplasm of leukocytes. Additionally we assayed 12 specimens l...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:We have studied the ability of yeast DNA polymerases to carry out repair of lesions caused by UV irradiation in Saccharomyces cerevisiae. By the analysis of postirradiation relative molecular mass changes in cellular DNA of different DNA polymerases mutant strains, it was established that mutations in DNA polymerases ...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Plasma membranes of rat platelets produced at normal platelet counts and during early recovery from immune-mediated thrombocytopenia were examined for the contents of carbohydrates, lipids and glycosphingolipids. Glucosylceramide, two monosialo-gangliosides and one disialo-ganglioside were found to be the major glycos...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:The pools of Arg, Gly, His, Ile, Ser, Glu, Leu, Val and Asp were lower during photosynthesis at 1% O2 concentration. At the same time specific radioactivity of a number of amino acids--following 14CO2 incorporation--was different than that at atmospheric O2 concentration. This is probably due to the inhibition of the ...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1982-01-01 00:00:00
abstract：:A set of metabolite carriers operates the traffic of numerous molecules consumed or produced in mitochondrial matrix and/or cytosolic compartments. As their existence has been predicted by the chemiosmotic theory, the first challenge, in the late sixties, was to prove their presence in the inner mitochondrial membrane...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章,评审
doi：
更新日期：1996-01-01 00:00:00
abstract：:Mitochondria were prepared from rat liver, solubilized with Triton X-100 and submitted to chromatography on dry hydroxylapatite. The pass-through from the column, containing a mixture of mitochondrial carriers, was processed further by triazine dye affinity chromatography and optimal conditions for binding and elution...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:Cirrhosis leads to an inability of the liver to perform its biochemical functions. It can also lead to hepatocellular carcinoma in which, as we showed lately, arginase isoenzyme pattern changes. The present work presents our results on arginase isoenzymes and their possible role in liver cirrhosis. The study was perfo...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：2009-01-01 00:00:00
abstract：:Pharmaceutical substances and their residues are increasingly present in the environment. Therefore, attempts at their removal are made by using different processes. Increasingly important among these processes are those modeled on natural phenomena which occur in wetland ecosystems, called technical scale constructed...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：10.18388/abp.2015_1165
更新日期：2015-01-01 00:00:00
abstract：:1. Susceptibility to inhibitors of neutral protease from calf thymus chromatin has been compared with that of trypsin. The chromatin protease reacts stoichiometrically with the inhibitors specific for trypsin (diisopropylfluorophosphate, tosyl-lysyl chloromethane, soybean trypsin inhibitor and Kunitz basic inhibitor f...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1976-01-01 00:00:00
abstract：:Fungal infections are a growing problem in contemporary medicine, yet only a few antifungal agents are used in clinical practice. In our laboratory we proposed the enzyme L-glutamine: D-fructose-6-phosphate amidotransferase (EC 2.6.1.16) as a new target for antifungals. The structure of this enzyme consists of two dom...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章,评审
doi：
更新日期：2005-01-01 00:00:00
abstract：:Lanthanides, also called rare-earth elements, are an interesting group of 15 chemically active, mainly trivalent, f-electronic, silvery-white metals. In fact, lanthanides are not as rare as the name implies, except for promethium, a radioactive artificial element not found in nature. The mean concentrations of lanthan...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章,评审
doi：
更新日期：2000-01-01 00:00:00
abstract：:Public and private EST (Expressed Sequence Tag) programs provide access to a large number of ESTs from a number of plant species, including Arabidopsis, corn, soybean, rice, wheat. In addition to the homology of each EST to genes in GenBank, information about homology to all other ESTs in the data base can be obtained...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章,评审
doi：
更新日期：1998-01-01 00:00:00
abstract：:Among possible causes of chronic hepatitis in adolescents most common are infections, autoimmune disorders and metabolic diseases. Thus, diagnostic procedures should be multidirectional. This study reports diagnosis and treatment difficulties in an 18-year-old male patient with hereditary hemochromatosis (HH), ulcerat...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：2011-01-01 00:00:00
abstract：:1. The amino acid composition of wheat germ EF2 differs to some extent from that of elongation factors from mammals and bacteria. 2. The purified wheat germ EF2, similarly as the factors from other sources, is active in the: EF1-dependent polymerization of phenylalanine; ribosome-dependent GTP hydrolysis; binding of g...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1977-01-01 00:00:00
abstract：:Glutathione-S-transferase (GST) a Phase-II drug detoxification enzyme, was detected in Setaria cervi, a bovine filarial parasite. In vitro effect of diethylcarbamazine, butylated hydroxyanisole and phenobarbitone on the GST of adult female S. cervi was assayed by the addition of these compounds in the maintenance medi...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：:The primary hepatocytes culture is still one of the main challenges in toxicology studies in the drug discovery process, development of in vitro models to study liver function, and cell-based therapies. Isolated hepatocytes display a rapid decline in viability and liver-specific functions including albumin production,...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：10.18388/abp.2016_1481
更新日期：2017-01-01 00:00:00
abstract：:The myosin heavy chain (MHC) was studied by biochemical methods in the slow-twitch (soleus) and two fast-twitch leg muscles of the triiodothyronine treated (hyperthyroid), thyroidectomized (hypothyroid) and euthyroid (control) rats. The changes in the contents of individual MHC isoforms(MHC-1, MHC-2A, MHC-2B and MHC-2...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Sulfate uptake, the first step of sulfate assimilation in all organisms, is a highly endoergic, ATP requiring process. It is under tight control at the transcriptional level and is additionally modulated by posttranslational modifications, which are not yet fully characterized. Sulfate anion is taken up into the cell ...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章,评审
doi：
更新日期：2009-01-01 00:00:00
abstract：:Although both uveal (UM) and cutaneous (CM) melanoma cells derive from the transformed melanocytes, their biology varies significantly in several aspects. Malignant transformation is frequently associated with alternations in cell glycosylation, in particular those concerning branched complex-type N-glycans. These cha...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：10.18388/abp.2015_1050
更新日期：2015-01-01 00:00:00
abstract：:Recently we observed that the transcription factors Sp1 and Sp3 bind to the CTCCTCCTC sequence located between positions -194 and -172 of the alphaV promoter region and are directly involved in the regulation of transcriptional activity of the alphaV gene in human umbilical vascular endothelial cells (HUVECs) (Czyz & ...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:Transcriptionally active and inactive chromatin fractions were isolated from Physarum polycephalum after depolymerization of chromatin with DNAase II or micrococcal nuclease, followed by fractionation in 5 mM-MgCl2. The active fraction of chromatin comprised up to 21% of nuclear DNA and was enriched 22-fold in the lab...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：1980-01-01 00:00:00
abstract：:This study examined the antiproliferative effects of β-escin (E) in cancer cells. The study showed that E inhibited cancer cells growth in a dose-dependent manner. The flow cytometric analysis revealed an escin-induced increase in the sub-G1 DNA content, which is considered to be a marker of apoptosis. Apoptosis was a...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：10.18388/abp.2015_1013
更新日期：2016-01-01 00:00:00
abstract：:This article reviews the evidence for the danger model in the context of immune response to tumors and the insufficiency of the immune system to eliminate tumor growth. Despite their potential immunogenicity tumors do not induce significant immune responses which could destroy malignant cells. According to the danger ...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章,评审
doi：
更新日期：2002-01-01 00:00:00
abstract：:We investigated the effect of the cyclic AMP-protein kinase A (PKA) signalling pathway on renal Na(+),K(+)-ATPase and ouabain-sensitive H(+),K(+)-ATPase. Male Wistar rats were anaesthetized and catheter was inserted through the femoral artery into the abdominal aorta proximally to the renal arteries for infusion of th...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：035001103
更新日期：2003-01-01 00:00:00
abstract：:The aim of this study was to compare the content of carotenoids in seventeen cultivars of carrots grown in Poland. Conventional orange cultivars with rarely grown were compared: white, yellow and purple with yellow core cultivars. To determine the content of carotenoids, extracts from lyophilized carrot roots were pre...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章
doi：
更新日期：2012-01-01 00:00:00
abstract：:Canthaxanthin (β,β-carotene 4,4' dione) used widely as a drug or as a food and cosmetic colorant may have some undesirable effects on human health, caused mainly by the formation of crystals in the macula lutea membranes of the retina of an eye. Experiments show the exceptional molecular organization of canthaxanthin ...
journal_title：Acta biochimica Polonica
pub_type： 杂志文章,评审
doi：
更新日期：2012-01-01 00:00:00
