Enumerations for _Assembly.Thiol_state (An open enumeration)
`all disulfide bound` | enumeration_text
`all free` | enumeration_text
`all other bound` | enumeration_text
`disulfide and other bound` | enumeration_text
`free and disulfide bound` | enumeration_text
`free and other bound` | enumeration_text
`free disulfide and other bound` | enumeration_text
`not available` | enumeration_text
`not present` | enumeration_text
`not reported` | enumeration_text
`unknown` | enumeration_text