Beschreibung:
<jats:title>Abstract</jats:title><jats:p>The influence, on silver staining, of proteins and restriction enzymes in polymerase chain reaction (PCR) products was studied in 12–20% polyacrylamide gels. For small DNA fragments (74, 41 and 33 bp) best results were achieved using 20% polyacrylamide gels. In 12% gels, restriction enzymes and also proteins used for PCR (bovine serum albumin, <jats:italic>Taq</jats:italic>‐DNA polymerase) interfere with silver staining of nucleic acids.</jats:p>