YJL045W (SDH1b, P47052) notes

Evidence journal for the review; sources are UniProt and cached publications.

• Paralog of the SDH flavoprotein Sdh1p: PMID:9730279
• Functional: PMID:9730279
• Minor under standard conditions: PMID:9730279; the SDH1b-lacZ fusion had 100-500-fold lower activity than SDH1-lacZ.
• Residual activity in sdh1 cells: PMID:16232921.
• UniProt: "In vitro, can complement a SDH1 disruption and leads to less than 15% of wild-type SDH reductase activity" [UniProt:P47052].

Curation decisions
- Core MF: GO:0008177 (enables, as the catalytic flavoprotein), complex II, inner membrane. Annotations accepted, but the module should model it as a minor/backup paralog of SDH1, not an equal isozyme.
- IEA generic oxidoreductase terms were changed to GO:0008177; generic 'protein-containing complex' to GO:0045273.
- No direct biochemical isolation of a YJL045W-containing complex II is cited; part_of rests on IBA plus complementation.