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  • 1
    Online Resource
    Online Resource
    Berlin/Boston :De Gruyter, Inc.,
    Keywords: Proteins--Analysis. ; Proteomics--Methodology. ; Proteins--analysis. ; Proteins--chemistry. ; Proteins--isolation & purification. ; Proteomics--methods. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (378 pages)
    Edition: 1st ed.
    ISBN: 9783110252361
    DDC: 572.6
    Language: English
    Note: 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
    Book
    Book
    Heidelberg : Spektrum, Akad. Verl.
    Keywords: Biochemistry ; Lehrbuch ; Biochemie ; Biochemie
    Description / Table of Contents: 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.
    Type of Medium: Book
    Pages: XLVII, 1223 S. , zahlr. Ill., graph. Darst. , 28 cm
    Edition: 2. Aufl., Studienausg.
    ISBN: 3827403251
    Series Statement: Spektrum Lehrbuch
    Uniform Title: Principles of biochemistry 〈dt.〉
    RVK:
    RVK:
    Language: German
    Note: Literaturangaben , Literaturangaben
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  • 3
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Biochemistry 26 (1987), S. 3544-3551 
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 732 (1994), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 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.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of clinical periodontology 22 (1995), S. 0 
    ISSN: 1600-051X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: 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.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-2277
    Keywords: Immunosuppression and metalloproteinases ; Metalloproteinases and immunosuppression
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The concentration of the metalloproteinases type I collagenase and gelatinase was measured in isolated polymorphonuclear leukocytes (PMNLs) of renal transplant recipients treated either with cyclosporin A (CyA) and prednisolone (Pr) (n=8) or azathioprine (Aza) and Pr (n=8), and of healthy subjects (n=12). PMNLs of CyA- and Aza-treated transplant patients displayed markedly higher gelatinase content (2427±489 and 3284±357 ng/107 cells) than PMNLs of controls (528±83 ng/107 cells). There was also a higher content of type I collagenase in PMNLs (3374±292 ng/107 cells) of Aza-treated patients and significantly elevated levels in PMNLs of patients receiving CyA (3625±229 ng/107 cells) compared with healthy subjects (2878±151 ng/107 cells). In contrast, neutrophil lactoferrin content was lower in transplant patients. Thus, immunosuppressive drugs may reduce the release of leukocyte proteinases, which are known for their deleterious role in proteolytic tissue and matrix breakdown. In vitro, the effects of different immunosuppressive drugs on the release of lactoferrin, collagenase and gelatinase were investigated on FMLPNTL-stimulated PMNLs isolated from healthy subjects. CyA but not Aza or Pr caused inhibition of gelatinase, collagenase and lactoferrin release.
    Type of Medium: Electronic Resource
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