A. Angewandte Methoden...................................................................................................37
1. Allgemeine Betrachtung..........................................................................................37
2. DNA-Extraktion ........................................................................................................38
2.1 Aus peripheren Lymphozyten .............................................................................38
2.2 Aus Guthrie-Karten .............................................................................................38
3. Die Polymerasekettenreaktion (PCR).....................................................................39
4. Enzymverdau zur Detektion von Mutationen ........................................................40
5. Sequenzierung der PCR-Produkte .........................................................................41
6. R�umliche Darstellung der ver�nderten Proteine.................................................42
B. Materialien und Protokolle .............................................................................................43
1. DNA-Extraktion ........................................................................................................43
1.1 Materialien .......................................................................................................... 43
1.2 DNA-Extraktion aus Vollblut................................................................................43
1.3 Bestimmung der DNA-Konzentration und Reinheit.............................................44
1.4 DNA-Extraktion aus Guthrie-Karten....................................................................44
2. Primersequenzen.....................................................................................................45
2.1 Primer f�r die Amplifikation der 6 PTS-Exons.....................................................45
2.2 Die markierten Universalprimer
f�r die Cycle-Sequencing-Reaktion .................................................................... 45
2.3 Modifizierter R�ckw�rtsprimer
f�r den Enzymverdau in Exon 2..........................................................................45
3. Die Polymerasekettenreaktion (PCR).....................................................................46
3.1 PCR-Reagenzien ................................................................................................ 46
3.2 PCR Ansatz und Konditionen .............................................................................46
4. Enzymverdau............................................................................................................48
4.1 Materialien .......................................................................................................... 48
4.2 Methode..............................................................................................................48
5. Agarose Gelelektrophorese der PCR-Produkte ....................................................49
5.1 Materialien .......................................................................................................... 49
5.2 Methode..............................................................................................................49
6. Sequenzierung der DNA..........................................................................................50
6.1 Materialien .......................................................................................................... 50
6.2 Cycle-Sequencing...............................................................................................50
6.3 Herstellung des Polyacrylamid-Gels ...................................................................52
6.4 Sequenzierungs-Elektrophorese.........................................................................52
C. Patientendaten ................................................................................................................54