Figure 1. The internal structure of a sequence record in Sequin, as seen in the Desktop window.

Figure 1The internal structure of a sequence record in Sequin, as seen in the Desktop window

The display can be understood as a Venn diagram. Selecting the up or down arrow expands or contracts, respectively, the level of detail shown. In a typical submission of a protein-coding gene, a BioseqSet (of class “nuc-prot”) contains two Bioseqs, one for the nucleotide and one for the protein. Descriptors, such as BioSrc, can be packaged on the set and thus apply to all Bioseqs within the set. Features allow annotation on specific regions of a sequence. For example, the CDS location provides instructions to translate the DNA sequence into the protein product.

From: Chapter 12, Sequin: A Sequence Submission and Editing Tool

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The NCBI Handbook [Internet].
McEntyre J, Ostell J, editors.
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