base deletion

base deletion

removal of a NUCLEOTIDE base, a purine or a pyrimidine from the DNA structure, producing a DELETION MUTATION that can have serious consequences for the related protein. See FRAMESHIFT.
References in periodicals archive ?
The exonic single base deletion mutations in patients FA82, FA121 and FA199 all resulted in frameshift mutations.
The frequency of base substitution and small deletions including single base deletions and deletions < 1 kb formed in fiber-treated MEF cells was only 2-fold higher than those from nontreated cases.