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  • 1
    Online-Ressource
    Online-Ressource
    Berlin/Boston :De Gruyter, Inc.,
    Schlagwort(e): Proteins--Analysis. ; Proteomics--Methodology. ; Proteins--analysis. ; Proteins--chemistry. ; Proteins--isolation & purification. ; Proteomics--methods. ; Electronic books.
    Materialart: Online-Ressource
    Seiten: 1 online resource (378 pages)
    Ausgabe: 1st ed.
    ISBN: 9783110252361
    DDC: 572.6
    Sprache: Englisch
    Anmerkung: Intro -- Preface -- Editor -- List of contributing authors -- Abbreviations -- Acknowledgements -- 1 Three-phase partitioning -- 1.1 Method -- 1.2 The mechanism of TPP -- 1.3 A practical example - the isolation of cathepsin L from liver tissue -- 1.4 Other applications -- 2 Folding and degradation functions of molecular chaperones -- 2.1 Introduction -- 2.2 The domain structure of Hsc/Hsp70 -- 2.3 The Hsc/Hsp70 reaction cycle -- 2.4 Cochaperones determine the function of Hsc/Hsp70 -- 2.5 In vitro reconstitution and functional analysis of the Hsc/Hsp70 chaperone system -- 2.6 Measuring the ATPase activity of Hsc/Hsp70 -- 2.7 Determining chaperone activity -- 2.8 In vitro reconstitution of chaperone-assisted ubiquitylation -- 2.9 Concluding remarks -- 3 Membrane protein folding in detergents -- 3.1 Introduction -- 3.2 Interactions of membrane proteins with detergents -- 3.3 Techniques to characterize TM proteins in detergents -- 3.4 Applications of TM protein-detergent complexes -- 3.5 Conclusions -- 4 Glycoprotein-folding quality control in the endoplasmic reticulum -- 4.1 Introduction -- 4.2 Glycoprotein-folding quality control (QC) -- 4.3 The UGGT -- 4.4 GII -- 4.5 CNX and CRT -- 4.6 ERp57 -- 4.7 Methods to study glycoprotein folding QC -- 5 Conformational dynamics in peptides and proteins studied by triplet-triplet energy transfer -- 5.1 Introduction -- 5.2 Concept of TTET experiments to study intrachain loop formation in polypeptide chains -- 5.3 Diffusion-controlled loop formation in unstructured polypeptide chains -- 5.4 Detection of fast conformational fluctuations in folded peptides and proteins by TTET -- 5.5 Conclusions -- 6 Protein import into the intermembrane space of mitochondria -- 6.1 Introduction -- 6.2 The mitochondrial IMS -- 6.3 The mitochondrial disulfide relay -- 6.4 The sulfhydryl oxidase Erv1 -- 6.5 The oxidoreductase Mia40. , 6.6 Substrates of the mitochondrial disulfide relay -- 6.7 Methods to study mitochondrial protein translocation -- 6.8 General comments to the analysis of thiol-disulfide redox states -- 6.9 Outlook -- 7 On-membrane identification of gel-resolved proteins by matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) -- 7.1 Introduction -- 7.2 Methods for identifying proteins electroblotted onto the PVDF membrane -- 7.3 General comments to the analysis of proteins on membranes -- 7.4 PVDF membranes or diamond-like carbon-coated (DLC) stainless steel plates? -- 7.5 Concluding remarks -- 8 Analysis of protein complexes using chemical cross-linking and mass spectrometry -- 8.1 Introduction -- 8.2 Reagents for chemical cross-linking -- 8.3 The chemical cross-linking workflow -- 8.4 MS and data analysis -- 8.5 Practical examples -- 8.6 The use of spatial constraints for modeling -- 8.7 Conclusion and outlook -- 9 Single-crystal spectroscopy correlated with X-ray crystallography provides complementary perspectives on macromolecular function -- 9.1 Introduction -- 9.2 Ionizing radiation: essential for crystal structures -- a problem and a reagent -- 9.3 Cofactors in biology provide spectroscopic access to reaction cycles -- 9.4 Single-crystal spectroscopy correlated with X-ray diffraction -- 9.5 Correlated studies at beamline X26-C of the NSLS -- 9.6 Future prospects -- 10 Wide-angle X-ray solution scattering (WAXS) -- 10.1 Introduction -- 10.2 Sample preparation -- 10.3 Sample-handling robot -- 10.4 Data collection -- 10.5 Data processing -- 10.6 Structural information -- 10.7 Size and shape -- 10.8 Secondary and tertiary structure -- 10.9 Quaternary structure -- 10.10 Structural changes -- 10.11 Unfolding -- 10.12 Molecular modeling -- 10.13 Modeling of structural fluctuations -- 10.14 Outlook. , 11 Where purity matters: recombinant versus synthetic peptides in beta amyloid formation -- 11.1 Amyloid fibrils possess a defined quaternary structure -- 11.2 The importance of purity for reproducible kinetics of amyloid fibril formation in vitro: the Aß as an example -- 11.3 Future challenges for the characterization of fibrillar structures -- 12 Chemical modification of proteins in living cells -- 12.1 Introduction -- 12.2 Site-specific labeling of proteins with chemical probes -- 12.3 Selecting an appropriate labeling technique -- 12.4 Live cell applications -- 12.5 Technical Protocols for SNAP- tag labeling -- 13 Proteomics of human bronchoalveolar lavage fluid: discovery of biomarkers of chronic obstructive pulmonary disease (COPD) with difference gel electrophoresis (DIGE) and mass spectrometry (MS) -- 13.1 Introduction -- 13.2 Application of DIGE platform to COPD biomarker discovery -- 13.3 Outlook -- 14 Proteomic analysis of Duchenne muscular dystrophy (DMD) -- 14.1 Introduction -- 14.2 Materials -- 14.3 Methods -- 14.4 Results and Discussion -- 14.5 Conclusion -- 15 Target-oriented peptide arrays in a palliative approach to cystic fibrosis (CF) -- 15.1 Introduction -- 15.2 PDZ domains -- 15.3 CF -- 15.4 Role of PDZ domains in CFTR trafficking -- 15.5 Target-oriented peptide arrays -- 15.6 An engineered peptide inhibitor of CAL extends the half-life of AF508-CFTR -- 15.7 Methods -- 15.8 Outlook -- 16 Probing protein dynamics in vivo using backbone cyclization: bacterial acyl carrier protein as a case study -- 16.1 Introduction -- 16.2 In vivo protein cyclization, biophysical analyses and functional assays -- 16.3 Outlook -- 17 The protein epitope mimetic approach to protein-protein interaction inhibitors -- 17.1 Introduction -- 17.2 Mechanisms of protein-protein interactions -- 17.3 Small-molecule screening approaches. , 17.4 Protein epitope mimetic approaches -- 18 The structural biology of α1-antitrypsin deficiency and the serpinopathies -- 18.1 Clinical phenotypes of the serpinopathies -- 18.2 The serpin mechanism of protease inhibition -- 18.3 Folding, misfolding and polymerization -- 18.4 Serpin folding -- 18.5 Dissecting the pathways of polymerization -- 18.6 Cellular processing of polymers -- 18.7 Stem cell technology to generate models of disease -- 18.8 Conclusions -- Index.
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  • 2
    Buch
    Buch
    Heidelberg : Spektrum, Akad. Verl.
    Schlagwort(e): Biochemistry ; Lehrbuch ; Biochemie ; Biochemie
    Beschreibung / Inhaltsverzeichnis: Klappentext: Mit dem "Lehninger" wuchs eine ganze Generation von Studenten auf. Seine außergewöhnliche Klarheit der Darstellung und die gute Lesbarkeit haben Maßstäbe gesetzt. Der Lehninger - der erfolgreiche Lehrbuchklassiker: Umfassend - durch die nahezu lückenlose Darstellung biochemischen Grundwissens Verständlich - durch die außergewöhnliche Klarheit der Sprache und die durchgehend vierfarbige Gestaltung Aktuell - durch vertiefende Exkurse aktueller Themen, in der deutschen Ausgabe nochmals erweitert.
    Materialart: Buch
    Seiten: XLVII, 1223 S. , zahlr. Ill., graph. Darst. , 28 cm
    Ausgabe: 2. Aufl., Studienausg.
    ISBN: 3827403251
    Serie: Spektrum Lehrbuch
    Originaltitel: Principles of biochemistry 〈dt.〉
    RVK:
    RVK:
    Sprache: Deutsch
    Anmerkung: Literaturangaben , Literaturangaben
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  • 3
    ISSN: 1520-4995
    Quelle: ACS Legacy Archives
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
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  • 4
    Digitale Medien
    Digitale Medien
    s.l. : American Chemical Society
    Biochemistry 26 (1987), S. 3544-3551 
    ISSN: 1520-4995
    Quelle: ACS Legacy Archives
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 732 (1994), S. 0 
    ISSN: 1749-6632
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Allgemeine Naturwissenschaft
    Materialart: Digitale Medien
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  • 6
    ISSN: 1520-4995
    Quelle: ACS Legacy Archives
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
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  • 7
    ISSN: 1520-4995
    Quelle: ACS Legacy Archives
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
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  • 8
    Digitale Medien
    Digitale Medien
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 57 (2001), S. 593-596 
    ISSN: 1600-5759
    Quelle: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Thema: Chemie und Pharmazie , Geologie und Paläontologie , Physik
    Notizen: The title compounds, (2S)-N-[5-(4-chlorophenyl)-2,3-dihydro-6H-1,3,4-thiadiazin-2-ylidene]-2-[(phenylsulfonyl)amino]propanamide, C18H17ClN4O3S2, (I), (2R)-N-[5-(4-fluorophenyl)-6H-1,3,4-thiadiazin-2-yl]-2-[(phenylsulfonyl)amino]propanamide, C18H17FN4O3S2, (II), and (2S)-N-[5-(5-chloro-2-thienyl)-6H-1,3,4-thiadiazin-2-yl]-2-[(phenylsulfonyl)amino]propanamide, C16H15ClN4O3S3, (III), are potent inhibitors of matrix metalloproteinases. In all three compounds, the thiadiazine ring adopts a screw-boat conformation. The molecules of compound (I) show a short intramolecular NAla—H...Nexo hydrogen bond [N...N 2.661 (3) Å] and are linked into a chain along the c axis by Nendo—H...Sendo and Nendo—H...OAla hydrogen bonds [N...S 3.236 (3) and N...O 3.375 (3) Å] between neighbouring molecules. In compound (II), the molecules are connected antiparallel into a chain along the a axis by Nexo—H...OAla and NAla—H...Nendo hydrogen bonds [N...O 2.907 (6) and N...N 2.911 (6) Å]. The molecules of compound (III) are dimerized antiparallel through Nexo—H...Nendo hydrogen bonds [N...N 2.956 (7) and 2.983 (7) Å]. The different hydrogen-bonding patterns can be explained by an amido–imino tautomerism (prototropic shift) shown by different bond lengths within the 6H-1,3,4-thiadiazine moiety.
    Materialart: Digitale Medien
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  • 9
    ISSN: 1600-051X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Abstract Matrix metalloproteinases (MMPs) and serine proteinases seem to be related to tissue destruction in periodontitis. The presence of MMPs in gingival crevicular fluid (GCF) and saliva, however, has not been studied comprehensively with the enzyme-linked immunosorbent assay (ELISA)-technique, We therefore examined the levels of MMP-1,-3.-8 and -9, and their endogenous inhibitor, tissue inhibitor of matrix metalloproteinases (TIMP-1). in GCF and saliva of patients with adult periodontitiss (AP) and localized juvenile periodontitis (LJP). Elevated levels of MMP-1 were detected in LJP GCF compared to AP and control GCF. Elevated levels of TIMP-1 were also detected in LJP GCF in comparison to AP and control GCF Higher MMP-8 levels were detected in AP GCF compared to LJP and control GCF. The relative low levels of MMP-3 were present in all studied GCF samples. Elevated levels of MMP-8 were further detected in saliva of AP compared to LJP and the controls. Both MMP-1 and TIMP-1 were detected in all studied saliva samples, but not significant differences were detected between the studied groups. Our ELISA-results confirm that (i) PMN MMP-8 and MMP-9 are the main collagenase and gelatinase in AP GCF, whereas GCF collagenase in LJP seems to be of the MMP-1-type; (ii) only low levels of TIMP-1. endogenous MMP-inhibitor. are present in AP GCF. which emphasises the importance of doxycycline as a possible adjunctive drug in the treatment of AP patients; (iii) tests based on specific antibodies against PMN MMPs. especially MMP-8, might serve as a reliable method of measuring and monitoring enzyme levels in GCF from different periodontitis patients.
    Materialart: Digitale Medien
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  • 10
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Journal of clinical periodontology 22 (1995), S. 0 
    ISSN: 1600-051X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Abstract. Dental plaque is the major aetiological factor in periodontal diseases and contains several proteolytic enzymes. The origin of these proteinases is, however, poorly studied. This study was undertaken to characterize collagenase present in dental plaque of adult periodontitis patients. Vertebrate-type rather than bacterial-derived collagenase activity was detected in extracts of both supra- and subgingival dental plaque extracts of adult periodontitis patients. Dental plaque collagenase was found to exist predominantly in autoactive form. Dental plaque collagenase from periodontally healthy individuals existed in latent form. Latent dental plaque collagenase from periodontitis lesions could be activated by a 95 kD chymotrypsin-like proteinase from Treponema denticola and human leukocyte cathepsin G but not by human plasmin. Incubation of purified latent leukocyte collagenase with whole cells of Fusobacterium nucleatum, Eubacterium saburreum, Prevotella buccae and Porphyromonas gingivalis, however, did not result to the activation of the enzyme. Doxycycline in vitro inhibited dental plaque collagenase with an IC50-value of 20μM. Dental plaque collagenase degraded more efficiently type I and 11 collagens than type III collagen. Western-blot analysis with specific anti-human neutrophil collagenase-antibody revealed that both in supra-and subgingival dental plaque extracts dental plaque collagenase had undergone proteolytic conversion from an 80 kD proform to a 58 kD active form which is associated with catalytic autoactivity as measured by functional collagenase assay. This reflects proteolytic activation of leukocyte collagenase in dental plaque probably by other proteases derived from potent periodontopathogenic bacteria such as T. denticola or other PMN proteases such as cathepsin G. Multiple different molecular weight gelatinases (20-200 kD) including fragmented low molecular weight human neutrophil 92 kD gelatinase species were detected in both supra- and subgingival dental plaque extracts. Leukocyte collagenase, previously found to be the main type of collagenase present in adult periodontitis gingiva, gingiva crevicular fluid and saliva, is also the predominant type of collagenase in the plaque of periodontitis patients. Fragmented but catalytically active neutrophil gelatinase species are also present in dental plaque. The dental plaque has potential to serve as a reservoir and site of activation of neutrophil (PMN)-derived matrix metalloproteinases in the periodontal inflammation.
    Materialart: Digitale Medien
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