Notes
Slide Show
Outline
1
One Step Further
  • Molecular Fingerprinting
  • OSF - 17
  • Page 323
2
Molecular Fingerprinting - 2
  • Application:
  • etechniques used for the detection of polymorphism of HLA alleles
  • Molecular techniques:
  • eRestriction fragment length polymorphism (RFLP)
  • esequence-specific priming (SSP)
  • esequence-specific oligonucleotide probing (SSOP)
  • esequence-base typing (SBT)
  • ¸uses Southern blotting technique
  • ¸identifies HLA loci that code for individual HLA antigens
  • ¸alternative name = Amolecular fingerprinting@
  • ¸uses PCR/gel electrophoresis technique
  • ¸detects polymorphism at allele level
  • ¸uses PCR/hybridization probes to PCR products
  • ¸detects HLA alleles
  • ¸uses PCR/nucleotide sequencing of PCR products
  • ¸detects alleles at exact sequence level
3
Molecular Fingerprinting - 3
  • Restriction fragment length polymorphism (RFLP) technique:
  • eDNA is extracted from patient=s cells
  • eDNA is visualized using Southern blotting technique
  • eHLA iantigens are identified by comparing patient=s band patterns to control (known) band patterns
  • ecan be used to distinquish one individual from another
4
End of Molecular Fingerprinting