by

Ciro Santilli (@cirosantilli, 35)

Genetic code

Table of contents
- Reading frame Genetic code
  - Open reading frame Reading frame
    - NCBI open reading frame tool Open reading frame
- Codon Genetic code
  - Start codon Codon
  - Stop codon Codon

Reading frame

 1  0 

There are six, three in each sense, depending on where you start modulo-3.

Open reading frame (orf)

 1  0 

Area between a start codon and an stop codon.

This term is useful because:

there are some crazy constructs, notably in viruses, in which there's more than one gene in a single orf
post-transcriptional modifications can throw out parts of the sequence

NCBI open reading frame tool

 0  0 

NCBI online tool to find and view all open reading frames in a given FASTA: www.ncbi.nlm.nih.gov/orffinder/

Codon

 0  0 

Start codon

 0  0 

Stop codon

 0  0 

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