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# 1. pymol.rc

[Pymolrc - PyMOLWiki](https://pymolwiki.org/index.php/Pymolrc)

When PyMOL launches, it will read custom settings and functions from a `pymolrc` file, if it exists. The file is simply a script written with PyMOL syntax. Usually, it's stored in `~/.pymolrc`.

One can add those lines into `.pymolrc`.

```
# The comment must be added in a new line

# enlarge the font size of labels, such as length of distance, residue names and others
set label_size, 30

# gap (dashed line) for broken backbone
set cartoon_gap_cutoff, 0
```

### 1.1. Cartoon gap cutoff

[Cartoon gap cutoff - PyMOLWiki](https://pymolwiki.org/index.php/Cartoon_gap_cutoff)

The missing loop along the protein backbone in one chain will be represented by a dashed line. Set the option `cartoon_gap_cutoff` to `0`, if you want to eliminate the dashed lines.

Note that, PyMOL recognizes a chain only by `chainid`. The `TER` card is not that important.

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