ID L7QGV3_9INFA Unreviewed; 498 AA. AC L7QGV3; DT 03-APR-2013, integrated into UniProtKB/TrEMBL. DT 03-APR-2013, sequence version 1. DT 24-JUN-2015, entry version 17. DE RecName: Full=Nucleoprotein {ECO:0000256|RuleBase:RU361251, ECO:0000256|SAAS:SAAS00107752}; DE Flags: Fragment; GN Name=NP {ECO:0000256|RuleBase:RU361251, ECO:0000313|EMBL:AGA19351.1}; OS Influenza A virus (A/elephant seal/California/2/2010(H1N1)). OC Viruses; ssRNA viruses; ssRNA negative-strand viruses; OC Orthomyxoviridae; Influenzavirus A. OX NCBI_TaxID=1263915 {ECO:0000313|EMBL:AGA19351.1}; RN [1] {ECO:0000313|EMBL:AGA19351.1} RP NUCLEOTIDE SEQUENCE. RC STRAIN=A/elephant seal/California/2/2010 RC {ECO:0000313|EMBL:AGA19351.1}; RX PubMed=23690933; RA Goldstein T., Mena I., Anthony S.J., Medina R., Robinson P.W., RA Greig D.J., Costa D.P., Lipkin W.I., Garcia-Sastre A., Boyce W.M.; RT "Pandemic H1N1 Influenza Isolated from Free-Ranging Northern Elephant RT Seals in 2010 off the Central California Coast."; RL PLoS ONE 8:E62259-E62259(2013). CC -!- FUNCTION: Encapsidates the negative strand viral RNA, protecting CC it from nucleases. The encapsidated genomic RNA is termed the CC ribonucleoprotein (RNP) and serves as template for transcription CC and replication. The RNP needs to be localized in the nucleus to CC start an infectious cycle, but is too large to diffuse through the CC nuclear pore complex. NP comprises at least 2 nuclear localization CC signals and is responsible of the active RNP import into the CC nucleus through the cellular importin alpha/beta pathway. Later in CC the infection, nucleus export of RNP are mediated through viral CC proteins NEP interacting with M1 which binds nucleoproteins. It is CC possible that the nucleoprotein binds directly exportin-1 (XPO1) CC and plays an active role in RNP nuclear export. M1 interaction CC with RNP seems to hide nucleoprotein's nuclear localization CC signals. Soon after a virion infects a new cell, M1 dissociates CC from the RNP under acidification of the virion driven by M2 CC protein. Dissociation of M1 from RNP unmask nucleoprotein's CC nuclear localization signals, targeting the RNP to the nucleus (By CC similarity). {ECO:0000256|SAAS:SAAS00208116}. CC -!- SUBUNIT: Homomultimerizes to form the nucleocapsid. May bind human CC exportin-1. Binds to viral genomic RNA. Protein-RNA contacts are CC mediated by a combination of electrostatic interactions between CC positively charged residues and the phosphate backbone and planar CC interactions between aromatic side chains and bases (By CC similarity). {ECO:0000256|SAAS:SAAS00208101}. CC -!- SUBCELLULAR LOCATION: Virion {ECO:0000256|RuleBase:RU361251, CC ECO:0000256|SAAS:SAAS00107723}. Host nucleus CC {ECO:0000256|RuleBase:RU361251, ECO:0000256|SAAS:SAAS00107723}. CC -!- SIMILARITY: Belongs to the influenza viruses nucleoprotein family. CC {ECO:0000256|RuleBase:RU361251}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; KC222503; AGA19351.1; -; Viral_cRNA. DR GO; GO:0019029; C:helical viral capsid; IEA:UniProtKB-KW. DR GO; GO:0042025; C:host cell nucleus; IEA:UniProtKB-SubCell. DR GO; GO:0019013; C:viral nucleocapsid; IEA:UniProtKB-KW. DR GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW. DR GO; GO:0005198; F:structural molecule activity; IEA:InterPro. DR GO; GO:0046718; P:viral entry into host cell; IEA:UniProtKB-KW. DR GO; GO:0075732; P:viral penetration into host nucleus; IEA:UniProtKB-KW. DR InterPro; IPR002141; Flu_NP. DR Pfam; PF00506; Flu_NP; 1. PE 3: Inferred from homology; KW Capsid protein {ECO:0000256|RuleBase:RU361251, KW ECO:0000256|SAAS:SAAS00107742}; KW Helical capsid protein {ECO:0000256|SAAS:SAAS00107684}; KW Host nucleus {ECO:0000256|RuleBase:RU361251, KW ECO:0000256|SAAS:SAAS00107707}; KW Host-virus interaction {ECO:0000256|SAAS:SAAS00107623}; KW RNA-binding {ECO:0000256|SAAS:SAAS00107783}; KW Viral nucleoprotein {ECO:0000256|RuleBase:RU361251, KW ECO:0000313|EMBL:AGA19351.1}; KW Viral penetration into host nucleus {ECO:0000256|SAAS:SAAS00107730}; KW Virion {ECO:0000256|RuleBase:RU361251, ECO:0000256|SAAS:SAAS00107603}; KW Virus entry into host cell {ECO:0000256|SAAS:SAAS00107589}. FT NON_TER 498 498 {ECO:0000313|EMBL:AGA19351.1}. SQ SEQUENCE 498 AA; 56009 MW; 23476CB9A166A4D3 CRC64; MASQGTKRSY EQMETGGERQ DATEIRASVG RMIGGIGRFY IQMCTELKLS DYDGRLIQNS ITIERMVLSA FDERRNKYLE EHPSAGKDPK KTGGPIYRRI NGKWMRELIL YDKEEIRRVW RQANNGEDAT AGLTHIMIWH SNLNDATYQR TRALVRTGMD PRMCSLMQGS TLPRRSGAAG AAVKGVGTIA MELIRMIKRG INDRNFWRGE NGRRTRVAYE RMCNILKGKF QTAAQRAMMD QVRESRNPGN AEIEDLIFLT RSALILRGSV AHKSCLPACV YGLAVASGHD FEREGYSLVG IDPFKLLQNS QVVSLMRPNE NPAHKSQLVW MACHSAAFED LRVSSFIRGK KVIPRGKLST RGVQVASNEN VETMDSNTLE LRSRYWAIRT RSGGNTNQQK ASAGQISVQP TFSVQRNLPF ERATVMAAFS GNNEGRTSDM RTEVIRMMES AKPEDLSFQG RGVFELSDEK ATNPIVPSFD MSNEGSYFFG DNAEEYDS //