{"gene":"PF3D7_0729700","run_date":"2026-09-11T10:06:41","timeline":{"discoveries":[{"year":2023,"finding":"PF3D7_0729700, a zinc-finger protein, was identified as a female-determining factor in Plasmodium berghei sexual development; protein interactors of this female-determining zinc-finger protein indicate it participates in germ-granule-like ribonucleoprotein complexes that complement transcriptional processes in female gametocyte determination and differentiation.","method":"Global screen of barcoded mutants combined with high-resolution single-cell transcriptomics of mutant parasites","journal":"Cell host & microbe","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — functional genetic screen plus single-cell transcriptomics and protein interactor identification in a single study; single lab but two orthogonal approaches","pmids":["36634679"],"is_preprint":false,"attribution":[{"species":"Plasmodium berghei","strain":""}]},{"year":2016,"finding":"The P. falciparum homolog of TgZNF2 (corresponding to PF3D7_0729700) was able to functionally rescue the mRNA nuclear export defect and proliferation arrest caused by depletion of TgZNF2 in Toxoplasma gondii, indicating that the mRNA nuclear export function of this zinc-finger protein is conserved in P. falciparum.","method":"Complementation of an inducible Toxoplasma gondii KO strain (iKO-TgZNF2) with the full-length P. falciparum homolog; polyA+ mRNA localization assay","journal":"Cellular microbiology","confidence":"Low","confidence_rationale":"Tier 3 / Weak — functional complementation in a heterologous system (T. gondii), single lab, infers but does not directly demonstrate the function of PF3D7_0729700 in P. falciparum","pmids":["27385072"],"is_preprint":false,"attribution":[{"species":"Plasmodium falciparum","strain":""}]}],"current_model":"PF3D7_0729700 is a zinc-finger protein that acts as a female-determining factor in P. falciparum sexual development, functioning through germ-granule-like ribonucleoprotein complexes, and its homolog in Toxoplasma gondii is essential for polyA+ mRNA nuclear export—a function that complementation experiments suggest is conserved in P. falciparum."},"narrative":{"mechanistic_narrative":"PF3D7_0729700 is a zinc-finger protein that functions as a female-determining factor in Plasmodium berghei sexual development, controlling female gametocyte determination and differentiation [PMID:36634679]. Its identified protein interactors place it within germ-granule-like ribonucleoprotein complexes that act to complement transcriptional processes during female gametocyte commitment [PMID:36634679]. Consistent with an RNA-associated role, the P. falciparum protein rescues the polyA+ mRNA nuclear export defect and proliferation arrest caused by depletion of its Toxoplasma gondii homolog TgZNF2, indicating that an mRNA nuclear export activity of this zinc-finger protein is conserved in P. falciparum [PMID:27385072]. Beyond its assignment as a female-determining factor operating through ribonucleoprotein complexes [PMID:36634679] and this cross-species complementation of mRNA export [PMID:27385072], no further mechanistic detail on PF3D7_0729700 has been characterized in the available corpus.","teleology":[{"year":2016,"claim":"Whether the RNA-handling function of the Toxoplasma zinc-finger protein TgZNF2 was shared by a Plasmodium counterpart was unknown; heterologous complementation established that the P. falciparum homolog PF3D7_0729700 can substitute for TgZNF2 in mRNA nuclear export.","evidence":"Complementation of an inducible T. gondii TgZNF2 knockout (iKO-TgZNF2) with the full-length P. falciparum homolog and a polyA+ mRNA localization assay","pmids":["27385072"],"confidence":"Low","gaps":["Function inferred in a heterologous T. gondii system, not directly demonstrated in P. falciparum","No direct assay of mRNA export by PF3D7_0729700 in P. falciparum cells","RNA targets and mechanism of export activity not defined"],"attribution":[{"species":"Plasmodium falciparum","strain":""}]},{"year":2023,"claim":"The role of PF3D7_0729700 in the parasite's own biology was unknown; a functional-genetic and transcriptomic screen defined it as a female-determining factor acting through germ-granule-like ribonucleoprotein complexes in sexual development.","evidence":"Global screen of barcoded mutants with high-resolution single-cell transcriptomics of mutant parasites and identification of protein interactors, in P. falciparum","pmids":["36634679"],"confidence":"Medium","gaps":["Single lab, though two orthogonal approaches","Molecular mechanism linking the zinc-finger protein to female commitment not resolved","Direct RNA substrates within the germ-granule-like complexes not identified"],"attribution":[{"species":"Plasmodium falciparum","strain":""}]},{"year":null,"claim":"It remains unresolved whether the conserved mRNA nuclear export activity inferred from Toxoplasma complementation is the mechanistic basis of the female-determining role in P. falciparum, and what RNA targets the protein acts on.","evidence":"","pmids":[],"confidence":"Low","gaps":["No direct demonstration of mRNA export by PF3D7_0729700 in P. falciparum","No structural or domain-level mechanism reported","Composition and RNA cargo of the germ-granule-like ribonucleoprotein complexes not defined"],"attribution":[{"species":"Plasmodium falciparum","strain":""}]}],"mechanism_profile":{"molecular_activity":[],"localization":[],"pathway":[],"complexes":["germ-granule-like ribonucleoprotein complex [#0]"],"partners":[],"other_free_text":["Identified as a female-determining factor in P. falciparum sexual development, controlling female gametocyte determination and differentiation [#0]","P. falciparum protein complements the mRNA nuclear export defect of the T. gondii homolog TgZNF2 [#1]"]}},"prefetch_data":{},"corpus_meta":[{"pmid":"36634679","id":"PMC_36634679","title":"Regulators of male and female sexual development are critical for the transmission of a malaria parasite.","date":"2023","source":"Cell host & microbe","url":"https://pubmed.ncbi.nlm.nih.gov/36634679","citation_count":53,"is_preprint":false,"source_species":["Pf"],"role":"primary","match_terms":["zinc finger protein"],"competing_organism_flag":false,"competing_organism_match":"","competing_organism_only":false},{"pmid":"34418264","id":"PMC_34418264","title":"Zinc finger proteins of Plasmodium falciparum.","date":"2021","source":"Cellular microbiology","url":"https://pubmed.ncbi.nlm.nih.gov/34418264","citation_count":33,"is_preprint":false,"source_species":["Pf"],"role":"primary","match_terms":["zinc finger protein"],"competing_organism_flag":false,"competing_organism_match":"","competing_organism_only":false},{"pmid":"27385072","id":"PMC_27385072","title":"An evolutionary conserved zinc finger protein is involved in Toxoplasma gondii mRNA nuclear export.","date":"2016","source":"Cellular microbiology","url":"https://pubmed.ncbi.nlm.nih.gov/27385072","citation_count":14,"is_preprint":false,"source_species":["Pf"],"role":"primary","match_terms":["zinc finger protein"],"competing_organism_flag":true,"competing_organism_match":"Toxoplasma","competing_organism_only":true}],"cost":{"stage1":{"model":"claude-sonnet-4-6","input_tokens":4043,"output_tokens":689,"usd":0.011232,"stage1_stop_reason":"end_turn"},"stage2":{"model":"claude-opus-4-8","input_tokens":5228,"output_tokens":1695,"usd":0.034258,"stage2_stop_reason":"end_turn"},"total_usd":0.04549,"stage1_batch_id":"msgbatch_01DisAaTypwmC8QwdMBuePHo","stage2_batch_id":"msgbatch_0184zxZTqxiEfdYYfPMfkqjb","note":"batch pricing = 50% of standard","patch_2026_09_11":["species attribution corrected after review"]},"stage1_raw":"```json\n{\n  \"discoveries\": [\n    {\n      \"year\": 2023,\n      \"finding\": \"PF3D7_0729700, a zinc-finger protein, was identified as a female-determining factor in Plasmodium falciparum sexual development; protein interactors of this female-determining zinc-finger protein indicate it participates in germ-granule-like ribonucleoprotein complexes that complement transcriptional processes in female gametocyte determination and differentiation.\",\n      \"method\": \"Global screen of barcoded mutants combined with high-resolution single-cell transcriptomics of mutant parasites\",\n      \"journal\": \"Cell host & microbe\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — functional genetic screen plus single-cell transcriptomics and protein interactor identification in a single study; single lab but two orthogonal approaches\",\n      \"pmids\": [\"36634679\"],\n      \"is_preprint\": false,\n      \"attribution\": [\n        {\"species\": \"Plasmodium falciparum\", \"strain\": \"\"}\n      ]\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"The P. falciparum homolog of TgZNF2 (corresponding to PF3D7_0729700) was able to functionally rescue the mRNA nuclear export defect and proliferation arrest caused by depletion of TgZNF2 in Toxoplasma gondii, indicating that the mRNA nuclear export function of this zinc-finger protein is conserved in P. falciparum.\",\n      \"method\": \"Complementation of an inducible Toxoplasma gondii KO strain (iKO-TgZNF2) with the full-length P. falciparum homolog; polyA+ mRNA localization assay\",\n      \"journal\": \"Cellular microbiology\",\n      \"confidence\": \"Low\",\n      \"confidence_rationale\": \"Tier 3 / Weak — functional complementation in a heterologous system (T. gondii), single lab, infers but does not directly demonstrate the function of PF3D7_0729700 in P. falciparum\",\n      \"pmids\": [\"27385072\"],\n      \"is_preprint\": false,\n      \"attribution\": [\n        {\"species\": \"Plasmodium falciparum\", \"strain\": \"\"}\n      ]\n    }\n  ],\n  \"current_model\": \"PF3D7_0729700 is a zinc-finger protein that acts as a female-determining factor in P. falciparum sexual development, functioning through germ-granule-like ribonucleoprotein complexes, and its homolog in Toxoplasma gondii is essential for polyA+ mRNA nuclear export—a function that complementation experiments suggest is conserved in P. falciparum.\"\n}\n```","stage2_raw":"{\n  \"mechanistic_narrative\": \"PF3D7_0729700 is a zinc-finger protein that functions as a female-determining factor in Plasmodium falciparum sexual development, controlling female gametocyte determination and differentiation [#0]. Its identified protein interactors place it within germ-granule-like ribonucleoprotein complexes that act to complement transcriptional processes during female gametocyte commitment [#0]. Consistent with an RNA-associated role, the P. falciparum protein rescues the polyA+ mRNA nuclear export defect and proliferation arrest caused by depletion of its Toxoplasma gondii homolog TgZNF2, indicating that an mRNA nuclear export activity of this zinc-finger protein is conserved in P. falciparum [#1]. Beyond its assignment as a female-determining factor operating through ribonucleoprotein complexes [#0] and this cross-species complementation of mRNA export [#1], no further mechanistic detail on PF3D7_0729700 has been characterized in the available corpus.\",\n  \"teleology\": [\n    {\n      \"year\": 2016,\n      \"claim\": \"Whether the RNA-handling function of the Toxoplasma zinc-finger protein TgZNF2 was shared by a Plasmodium counterpart was unknown; heterologous complementation established that the P. falciparum homolog PF3D7_0729700 can substitute for TgZNF2 in mRNA nuclear export.\",\n      \"evidence\": \"Complementation of an inducible T. gondii TgZNF2 knockout (iKO-TgZNF2) with the full-length P. falciparum homolog and a polyA+ mRNA localization assay\",\n      \"pmids\": [\"27385072\"],\n      \"confidence\": \"Low\",\n      \"gaps\": [\n        \"Function inferred in a heterologous T. gondii system, not directly demonstrated in P. falciparum\",\n        \"No direct assay of mRNA export by PF3D7_0729700 in P. falciparum cells\",\n        \"RNA targets and mechanism of export activity not defined\"\n      ],\n      \"attribution\": [\n        {\"species\": \"Plasmodium falciparum\", \"strain\": \"\"}\n      ]\n    },\n    {\n      \"year\": 2023,\n      \"claim\": \"The role of PF3D7_0729700 in the parasite's own biology was unknown; a functional-genetic and transcriptomic screen defined it as a female-determining factor acting through germ-granule-like ribonucleoprotein complexes in sexual development.\",\n      \"evidence\": \"Global screen of barcoded mutants with high-resolution single-cell transcriptomics of mutant parasites and identification of protein interactors, in P. falciparum\",\n      \"pmids\": [\"36634679\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Single lab, though two orthogonal approaches\",\n        \"Molecular mechanism linking the zinc-finger protein to female commitment not resolved\",\n        \"Direct RNA substrates within the germ-granule-like complexes not identified\"\n      ],\n      \"attribution\": [\n        {\"species\": \"Plasmodium falciparum\", \"strain\": \"\"}\n      ]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"It remains unresolved whether the conserved mRNA nuclear export activity inferred from Toxoplasma complementation is the mechanistic basis of the female-determining role in P. falciparum, and what RNA targets the protein acts on.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"Low\",\n      \"gaps\": [\n        \"No direct demonstration of mRNA export by PF3D7_0729700 in P. falciparum\",\n        \"No structural or domain-level mechanism reported\",\n        \"Composition and RNA cargo of the germ-granule-like ribonucleoprotein complexes not defined\"\n      ],\n      \"attribution\": [\n        {\"species\": \"Plasmodium falciparum\", \"strain\": \"\"}\n      ]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0003676\", \"supporting_discovery_ids\": [0, 1]},\n      {\"term_id\": \"GO:0008270\", \"supporting_discovery_ids\": [0, 1]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0036464\", \"supporting_discovery_ids\": [0]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"GO:0006406\", \"supporting_discovery_ids\": [1]},\n      {\"term_id\": \"GO:0019953\", \"supporting_discovery_ids\": [0]}\n    ],\n    \"complexes\": [\n      \"germ-granule-like ribonucleoprotein complex [#0]\"\n    ],\n    \"partners\": [],\n    \"other_free_text\": [\n      \"Identified as a female-determining factor in P. falciparum sexual development, controlling female gametocyte determination and differentiation [#0]\",\n      \"P. falciparum protein complements the mRNA nuclear export defect of the T. gondii homolog TgZNF2 [#1]\"\n    ]\n  }\n}","audit_flag":null,"strains":[{"strain":"Pf3D7","gene_id":"PF3D7_0729700","name":null,"product":"zinc finger protein, putative","uniprot_acc":null,"chromosome":null,"start_pos":null},{"strain":"PbANKA","gene_id":"PBANKA_0213800","name":null,"product":"zinc finger protein, putative","uniprot_acc":null,"chromosome":null,"start_pos":null},{"strain":"PkH","gene_id":"PKNH_0214600","name":null,"product":"zinc finger protein, putative","uniprot_acc":null,"chromosome":null,"start_pos":null}],"gene_symbol":"","evaluation":null}