Molecular Probe Data Base contains detailed information on synthetic o
ligonucleotides with a sequence of up to 100 nucleotides. This databas
e prevalently contains information related to human oligonucleotides u
sed in diagnostics, Molecular Probe Data Base has been made available
on-line through the Internet by means of Network Information Retrieval
(NIR) tools since 1993, Two years ago, a collaboration with EMBL Data
Library was also set up, so that the Molecular Probe Data Base has be
en integrated with other molecular biology data banks in the sphere of
the SRS WWW network browser, In this paper, the most recent enhanceme
nts and the current status of the Molecular Probe Data Base are briefl
y presented.