| Protein name | UniProt ID | Organism | ORF names | Key domain(s) | Inferred molecular function | Predicted localization | Pathway associations | Evidence type | Key references cited |
|---|---|---|---|---|---|---|---|---|---|
| KilA-N domain-containing protein | A2FPI7 | *Trichomonas vaginalis* strain ATCC PRA-98 / G3 | TVAG_233530; TVAG_559790 | KilA/APSES_HTH (IPR018004); KilA_N (IPR017880); PF04383 | Probable DNA-binding regulatory protein; most likely functions as a transcriptional regulator rather than an enzyme or transporter | Predicted nucleus | No direct pathway assignment in *T. vaginalis*; by homology to KilA-N/APSES proteins, may participate in gene-regulatory programs linked to cell-cycle control, morphogenesis/development, stress response, or virulence-associated transcriptional regulation | Direct for identity/domain assignment from UniProt; inferred for function, localization, and pathway from KilA-N/APSES literature | UniProt A2FPI7 entry; Iyer et al., 2002, *Genome Biology* (published Feb 2002), https://doi.org/10.1186/gb-2002-3-3-research0012; Dutton et al., 1997, *EMBO Journal* (published Sep 1997), https://doi.org/10.1093/emboj/16.18.5710; Medina et al., 2019, *Current Opinion in Genetics & Development* (published Oct 2019), https://doi.org/10.1016/j.gde.2019.08.004; Xin et al., 2020, *Applied and Environmental Microbiology* (published Apr 2020), https://doi.org/10.1128/AEM.02928-19; Carreras-Villaseñor et al., 2023, *Frontiers in Microbiology* (published Jul 2023), https://doi.org/10.3389/fmicb.2023.1224096 |
| Functional confidence summary | A2FPI7 | *T. vaginalis* | Same as above | Same as above | Strongest supported annotation is “poorly characterized eukaryotic KilA-N DNA-binding protein” | Predicted nucleus | Unknown in parasite-specific context | Low-to-moderate overall confidence because no gene-specific experiments were found for A2FPI7; moderate confidence for DNA-binding role at domain level | Same references as above |
| Major knowledge gaps | A2FPI7 | *T. vaginalis* | Same as above | Same as above | DNA-binding sequence specificity, target genes, interacting partners, regulatory conditions, loss/gain-of-function phenotypes, and essentiality remain uncharacterized | Unverified experimentally | No validated signaling or biochemical pathway placement | Inference only | Same references as above |


*Table: This table summarizes the verified identity and best-supported domain-based functional inferences for the *Trichomonas vaginalis* protein A2FPI7. It is useful because no direct gene-specific literature was found, so current annotation depends on conserved KilA-N/APSES domain biology.*