Isotope label enumeration doesn't work with existing NMDC isotope slot

[mslarae13]

The NMDC slot 'isotope_exposure" can be used to inform the JGI template column "Isotope label".

In the JGI template, it's an enumeration (C13, N15, O18, Unlabeled).

NMDC doesn't have an enumeration & it is expected to include the compound that is labeled (13C glucose (C13 glucose), H218O, 15NH4+).

In theory, we can extrapolate the correct JGI enum from what we collection.. but it isn't easy, and it's error prone.

Looking for some comments / feedback on how we should handle this. @turbomam , @cmungall , @emileyfadrosh , @aclum

Some options:

• Add a JGI isotope slot
• • Pros: clear mapping to JGI
• • Cons: more columns, more slots, repeat details
• Make isotope_exposure more general and enumerated to match JGI, assuming the chemical that is labeled will be captured somewhere else (chem administration?)
• • Pros: clear mapping to JGI, clearer metadata in NMDC, will be a closer map to GSC v7 with addition of SIP checklists
• • Cons: more columns, more slots

[aclum]

I'd vote for 'Make isotope_exposure more general and enumerated to match JGI, assuming the chemical that is labeled will be captured somewhere else (chem administration?)' since it has more pros that the other option.