Basically, a mutation database (MDB) is a repository where allelic variatio
ns are described and assigned within a specific gene locus. The purposes of
an MDB may vary greatly and have different content and structure. The cura
tor of an electronic and computer-based MDB will provide expert feedback (c
linical and research). This requires ethical guideposts. Going to direct on
-line public access for the content of an MDB or to interactive communicati
on also raises other considerations. Currently, HUGO's MDI (Mutation Databa
se Initiative) is the only integrated effort supporting and guiding the coo
rdinated deployment of MDBs devoted to genetic diversity. Thus, HUGO's ethi
cal "Statements" are applicable. Among the ethical principles, the obligati
on of pre serving the confidentiality of information transferred by a colla
borator to the curator is particularly important. Thus, anonymization of su
ch data prior to transmission is essential. The 1997 Universal Declaration
on the Human Genome and Human Rights of UNESCO addresses the participation
of vulnerable persons. Researchers in charge of MDBs should ensure that inf
ormation received on the testing of children or incompetent adults is subje
ct to ethical review and approval in the country of origin. Caution should
be taken against the involuntary consequences of public disclosure of resul
ts without complete explanation. Clear and enforceable regulations must be
developed to protect the public against misuse of genetic databanks. Intera
ction with a databank could be seen as creating a "virtual" physician-patie
nt relationship. However interactive public MDBs should not give medical ad
vice. We have identified new social ethical principles to govern different
levels of complexity of genetic information. They are: reciprocity, mutuali
ty, solidarity, and universality. Finally, precaution and prudence at this
early stage of the MDI may not only avoid ethically inextricable conundrums
but also provide for the respect for the rights and interests of all those
involved. Hum Mutat 15:30-35, 2000. (C) 2000 Wiley-Liss, Inc.