The big assumption - a protein of at least 140 amino acids to be able to self recreate, and hence create life.
http://www.beingrecreated.org/probabilitylife.html

I have to admit most frequently it is met in the adjectival form, "self-recreating cells":
In November last year, the United States Food and Drug Authority approved for the first time the therapy that uses these self-recreating cells of human blood taken from cord blood.
http://healthcarenewsblog.com/hemacord-stem-cell-cure-for-he...

Also: The new product is made from self-recreating “progenitor” cells that are similar to stem cells and was also approved for use to treat blood cancers, some inherited metabolic and immune system disorders.
http://stemcelltherapyreviewjournal.com/gene-therapy-stem-ce...