The pairedless proteins possess molecular weights of 43, 33, or 32kDa, depending on the particular start codon used.
The mechanism for selecting a start codon in bacteria is different.
Alternate start codons result in two isoforms of the protein.
A methionine in exon 2 was taken instead for the start codon.
They also reported a second transcription initiation site 253 nucleotides upstream of the start codon.
Six of the class XI myosins have an intron after the start codon.
Alternative start codons are common in the avian species.
Coding regions begin with the start codon and end with a stop codon.
Stars are used to indicate in frame stop codons upstream of the putative start codon.
This prevents ribosomes from binding the gene's start codon.