The SBOL symbol for a ribosome entry site is a semi-circle.

Rightwards: represents an entry site on the forward/top strand.
Leftwards: represents an entry site on the backwards/reverse-complement/bottom strand.

The symbol for a ribosome entry site has a variable width and depth.

Length:

Depth:

Top strand
Bottom strand

The RES symbol can be aligned to the backbone in three modes: backbone-centred, above-strand and below-strand. The strand-centred RES is centred on the backbone line. For above-strand and below-strand, it is always placed that side. The outside label is always placed furthest from the strand.

Direction:

Forward
Reverse

Alignment mode:

Above
Centred
Below

You can embed RES symbols directly into the flow of text by using SBOLv the RES shortcode [res]fish[/res] within normal text. If you don't need a label you can either use an empty shortcode ([res][/res]) or a self-closing shortcode ([res/]). The width and height of the symbol can be set manually as in [res width="100"]looong[/res] and [res width="20"/] and the orientation with [res dir="<"/] and [res dir=">"/].

You can embed RES symbols directly into the flow of text by using SBOLv the RES shortcode [res]fish[/res] within normal text. If you don't need a label you can either use an empty shortcode ([res][/res]) or a self-closing shortcode ([res/]). The width and height of the symbol can be set manually as in [res width="100"]looong[/res] and [res width="20"/] and the orientation with [res dir="<"/] and [res dir=">"/].

Shortcode processing is enabled within part of your document by including SBOLv().shortcodes() in a <script> element. This will apply shortcodes to all of its siblings