Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors

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1. Verfasser: Johanningmeier, Benjamin 1984- (VerfasserIn)
Format: Abschlussarbeit Buch
Sprache:English
Veröffentlicht: Münster [2021]
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adam_text TABLE OF CONTENTS LIST OF FIGURES ........................................................................................................................................... IV LIST OF TABLES ............................................................................................................................................ VI LIST OF ABBREVIATIONS ............................................................................................................................... VII ABSTRACT ................................................................................................................................................... IX 1. INTRODUCTION .......................................................................................................................................... 1 1.1 VENOM COMPOSITION ....................................................................................................................... 2 1.2 PLATELET RECEPTORS ........................................................................................................................... 3 1.3 INTEGRIN A201 .................................................................................................................................. 4 1.4 C-TYPE LECTIN-RELATED PROTEINS (CLRPS) ........................................................................................... 7 1.5 VON WILLEBRAND FACTOR (VWF) .......................................................................................................... 8 1.6 GLYCOPROTEIN IBA (GPIBA) ............................................................................................................. 11 1.7 AIM OF THIS THESIS .......................................................................................................................... 15 2. MATERIALS AND METHODS ...................................................................................................................... 16 2.1 MATERIALS ....................................................................................................................................... 16 2.1.1 CHEMICALS ............................................................................................................................... 16 2.1.2 LABORATORY EQUIPMENT ........................................................................................................... 19 2.1.3 ANTIBIOTICS .............................................................................................................................. 21 2.1.4 BUFFER AND SOLUTIONS .............................................................................................................. 21 2.1.5 ANTIBODIES .............................................................................................................................. 24 2.1.6 CULTURE MEDIA ........................................................................................................................ 25 2.1.7 ORGANISMS .............................................................................................................................. 26 2.1.8 PLASMIDS ................................................................................................................................. 27 2.1.9 OLIGONUCLEOTIDES .................................................................................................................... 28 2.1.10 CHROMATOGRAPHIC MATERIAL .................................................................................................. 29 2.1.11 OTHER MATERIALS ................................................................................................................... 29 2.1.12 SOFTWARE .............................................................................................................................. 30 2.2 METHODS ....................................................................................................................................... 31 2.2.1 MOLECULAR BIOLOGY METHODS ................................................................................................ 31 2.2.1.1 ISOLATION OF NUCLEIC ACID .................................................................................................. 31 2.2.1.2 AGAROSE GEL ELECTROPHORESIS ........................................................................................... 31 2.2.1.3 POLYMERASE CHAIN REACTION (PCR) .................................................................................. 31 2.2.1.4 RESTRICTION ENZYMES ....................................................................................................... 32 2.2.1.5 LIGATION ........................................................................................................................... 33 2.2.1.6 GENERATING COMPETENT E. COLI CELLS ................................................................................. 33 TABLE OF CONTENT 2.2.1.7 HEAT SHOCK TRANSFORMATION OF E. COLI .............................................................................. 33 2.2.1.8 QUANTIFICATION OF DNA AND DNA SEQUENCING ................................................................. 34 2.2.2 SF-9 INSECT CELLS: CULTURE AND TRANSFECTION ............................................................................ 34 2.2.2.1 CULTURING SF-9 CELLS .......................................................................................................... 34 2.2.2.2 CRYOPRESERVATION OF SF-9 CELLS ........................................................................................ 35 2.2.2.3 SF-9 CELL LYSIS .................................................................................................................... 35 2.2.2.4 TRANSFECTION AND SUBCLONING OF SF-9 CELLS ....................................................................... 36 2.2.3 BIOCHEMICAL METHODS ............................................................................................................ 37 2.2.3.1 GENERAL PROTEIN METHODS ............................................................................................... 37 2.2.3.2 EXPRESSION AND PURIFICATION OF RECOMBINANT GST-A2A .................................................. 39 2.2.3.3 PURIFICATION OF BOTHROPS ALTERNATUS VENOM .................................................................... 40 2.2.3.4 EXPRESSION AND PURIFICATION OF RECOMBINANT VWF-AL ................................................... 42 2.2.3.5 PLATELET AGGREGOMETRY ASSAY ......................................................................................... 43 2.2.3.6 EXPRESSION AND PURIFICATION OF RECOMBINANT GPIBA290 ................................................ 44 2.2.3.7 GLYCOCALICIN PREPARATION ................................................................................................. 46 2.2.3.8 ELISA ............................................................................................................................... 49 3. RESULTS .............................................................................................................................................. 53 3.1 INTEGRIN A2A DOMAIN ..................................................................................................................... 53 3.1.1 INTEGRIN A2A BINDING SITE INTERACTION WITH RHODOCETIN ......................................................... 53 3.1.1.1 LOCKED OPEN AND CLOSED A2A CONFORMATIONS ......................................................... 53 3.1.1.2 MAPPING THE A2A DOCKING-SITE FOR RC ............................................................................ 55 3.1.2 INTEGRIN A2A BINDING SITE INTERACTION WITH BOTHROPS ALTERNATUS VENOM FRACTIONS .............. 56 3.1.2.1 EXPRESSION AND PURIFICATION OF GST-A2A ......................................................................... 56 3.1.2.2 OPTIMAL ELISA-ANTIBODY CONCENTRATIONS USING CHECKERBOARD TITRATION ........................ 58 3.1.2.3 INTERACTION STUDIES OF GST-A2A WITH COLLAGEN 1 .............................................................. 59 3.1.2.4 IDENTIFICATION OF INTEGRIN A2A INHIBITORY PROTEINS FROM B. ALTERNATUS SNAKE VENOM .... 60 3.1.2.5 PURIFICATION STRATEGY OF B. ALTERNATUS VENOM ................................................................. 61 3.1.2.6 INHIBITION OF GST-A2A-COLLAGEN INTERACTION BY B. ALTERNATUS TOXIN FRACTION .................. 64 3.1.2.7 PROTEIN-ANALYSIS OF POOL #16-17 OF 8. ALTERNATUS VENOM PROTEINS ................................ 66 3.2 VON WILLEBRAND FACTOR-AL ............................................................................................................ 69 3.2.1 ISOLATION AND PURIFICATION OF RECOMBINANT VON WILLEBRAND FACTOR-AL DOMAIN .................... 69 3.2.2 MS-ANALYSIS OF RVWF-AL DOMAIN ........................................................................................... 71 3.2.3 ACTIVITY-TEST OF RVWF-AL ........................................................................................................ 72 3.3 GLYCOPROTEIN LB A .......................................................................................................................... 73 3.3.1 CLONING OF GPIBA290 .............................................................................................................. 73 3.3.2 TRANSFECTION AND EXPRESSION OF RECOMBINANT GPIBA290...................................................... 76 II TABLE OF CONTENT 3.3.3 PURIFICATION OF GPIBA290 .................................................................................................... 76 3.4 GLYCOCALICIN ................................................................................................................................... 81 3.4.1 ISOLATION AND PURIFICATION OF GLYCOCALICIN ............................................................................... 81 3.4.2 CAPTURING GLYCOCALICIN BY ELISA ............................................................................................. 82 4. DISCUSSION......................................................................................................................................... 84 4.1 INTEGRIN A2A - RHODOCETIN INTERACTION .......................................................................................... 84 4.2 INTEGRIN A2A DOMAIN AND BOTHROPS ALTERNATUS VENOM PROTEINS ................................................. 88 4.3 GLYCOPROTEIN LB A AND VON WILLEBRAND FACTOR-AL ........................................................................ 92 4.3.1 BACTERIAL EXPRESSION AND ANALYSIS OF RECOMBINANT VON WILLEBRAND FACTOR-AL ..................... 92 4.3.2 INSECT CELL EXPRESSION AND ANALYSIS OF RECOMBINANT GPIBA290 (RGPIBA290)........................ 94 REFERENCES.............................................................................................................................................. 97 APPENDIX ............................................................................................................................................... 105 PUBLICATIONS .......................................................................................................................................... 123 ACKNOWLEDGEMENTS .............................................................................................................................. 124 CURRICULUM VITAE ................................................................................................................................... 125
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spellingShingle Johanningmeier, Benjamin 1984-
Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors
subject_GND (DE-588)4113937-9
title Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors
title_auth Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors
title_exact_search Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors
title_full Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors vorgelegt von Benjamin Johanningmeier
title_fullStr Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors vorgelegt von Benjamin Johanningmeier
title_full_unstemmed Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors vorgelegt von Benjamin Johanningmeier
title_short Snake venom proteins and their interaction with integrin α2β1- and GPlb-receptors
title_sort snake venom proteins and their interaction with integrin α2β1 and gplb receptors
topic_facet Hochschulschrift
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