Men-b notes
- 2026-10-09: Initial review of Men-b (E1JIZ4; CG5889; dME3), malic enzyme paralog of Men.
- N-terminus MFSRPSLCGTVGKLCRCGTSATGK... looks like a mitochondrial presequence (not annotated as
TRANSIT in UniProt).
- Murari et al. 2022 PMID:35544578: "CG5889 (Men-b) is the Drosophila ortholog of ME3." and
"ME1 and ME3 use NADP+ as a cofactor, while ME2 can use either NADP+ or NAD+." Flight-muscle RNAi:
"We conclude that disruption of dME3 impairs the biogenesis or stability of the Q- and N-modules to
trigger a disruption in CI assembly." and "Samples expressing RNAi constructs for dME3 were analyzed
2 days after eclosure due to early lethality." (found via falcon deep research).
- No NEW complex I assembly annotation proposed: the effect is attributed to NADPH supply, an
indirect role (enzyme does not do assembly work).
- Glucome RNAi screen IMP glucose homeostasis PMID:25994086 kept as non-core.
- Falcon deep research also cites 2024 bioRxiv preprints (tissue metabolic models; high-sugar
macrophage RNA-seq) - not used.