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TGBp3 most probably contains signals of plasmodesmata targeting is therefore involved in the targeting of TGBp2, and viral RNAs-TGBp1 (RNP complex), to plasmodesmata. Can gate plasmodesmata and increase their size exclusion limit (By similarity)"}],"commentType":"FUNCTION"},{"texts":[{"evidences":[{"evidenceCode":"ECO:0000250"}],"value":"Interacts with movement proteins TGB1 and TGB2"}],"commentType":"SUBUNIT"},{"commentType":"SUBCELLULAR LOCATION","note":{"texts":[{"evidences":[{"evidenceCode":"ECO:0000305"}],"value":"localizes to plasmodesmata or plasmodesmata-associated membrane compartments called peripheral membrane bodies (PMBs)"}]},"subcellularLocations":[{"location":{"evidences":[{"evidenceCode":"ECO:0000305"}],"value":"Host cell junction, host plasmodesma","id":"SL-0385"}},{"location":{"evidences":[{"evidenceCode":"ECO:0000305"}],"value":"Host endoplasmic reticulum membrane","id":"SL-0390"},"topology":{"evidences":[{"evidenceCode":"ECO:0000305"}],"value":"Multi-pass membrane protein","id":"SL-9909"}}]},{"texts":[{"evidences":[{"evidenceCode":"ECO:0000305"}],"value":"Belongs to the benyvirus TGB3 movement protein family"}],"commentType":"SIMILARITY"}],"features":[{"type":"Chain","location":{"start":{"value":1,"modifier":"EXACT"},"end":{"value":132,"modifier":"EXACT"}},"description":"Movement protein TGB3","featureId":"PRO_0000412277"},{"type":"Topological domain","location":{"start":{"value":1,"modifier":"EXACT"},"end":{"value":11,"modifier":"EXACT"}},"description":"Cytoplasmic","evidences":[{"evidenceCode":"ECO:0000255"}]},{"type":"Transmembrane","location":{"start":{"value":12,"modifier":"EXACT"},"end":{"value":32,"modifier":"EXACT"}},"description":"Helical","evidences":[{"evidenceCode":"ECO:0000255"}]},{"type":"Topological domain","location":{"start":{"value":33,"modifier":"EXACT"},"end":{"value":109,"modifier":"EXACT"}},"description":"Lumenal","evidences":[{"evidenceCode":"ECO:0000255"}]},{"type":"Transmembrane","location":{"start":{"value":110,"modifier":"EXACT"},"end":{"value":130,"modifier":"EXACT"}},"description":"Helical","evidences":[{"evidenceCode":"ECO:0000255"}]},{"type":"Topological domain","location":{"start":{"value":131,"modifier":"EXACT"},"end":{"value":132,"modifier":"EXACT"}},"description":"Cytoplasmic","evidences":[{"evidenceCode":"ECO:0000255"}]}],"keywords":[{"id":"KW-1031","category":"Cellular component","name":"Host cell junction"},{"id":"KW-1038","category":"Cellular component","name":"Host endoplasmic reticulum"},{"id":"KW-1043","category":"Cellular component","name":"Host membrane"},{"id":"KW-0472","category":"Cellular component","name":"Membrane"},{"id":"KW-1185","category":"Technical term","name":"Reference proteome"},{"id":"KW-0812","category":"Domain","name":"Transmembrane"},{"id":"KW-1133","category":"Domain","name":"Transmembrane helix"},{"id":"KW-0813","category":"Biological process","name":"Transport"},{"id":"KW-0916","category":"Molecular function","name":"Viral movement protein"}],"references":[{"referenceNumber":1,"citation":{"id":"8973531","citationType":"journal article","authors":["Saito M.","Kiguchi T.","Kusume T.","Tamada T."],"citationCrossReferences":[{"database":"PubMed","id":"8973531"},{"database":"DOI","id":"10.1007/bf01718223"}],"title":"Complete nucleotide sequence of the Japanese isolate S of beet necrotic yellow vein virus RNA and comparison with European isolates.","publicationDate":"1996","journal":"Arch. 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