ID PIWI_DROME STANDARD; PRT; 843 AA. AC Q9VKM1; O96674; O96675; DT 10-OCT-2003 (Rel. 42, Created) DT 10-OCT-2003 (Rel. 42, Last sequence update) DT 15-JUN-2004 (Rel. 44, Last annotation update) DE Piwi protein. GN PIWI OR CG6122. OS Drosophila melanogaster (Fruit fly). OC Eukaryota; Metazoa; Arthropoda; Hexapoda; Insecta; Pterygota; OC Neoptera; Endopterygota; Diptera; Brachycera; Muscomorpha; OC Ephydroidea; Drosophilidae; Drosophila. OX NCBI_TaxID=7227; RN [1] RP SEQUENCE FROM N.A., FUNCTION, DEVELOPMENTAL STAGE, AND TISSUE RP SPECIFICITY. RC STRAIN=Canton-S, and Oregon-R; RX MEDLINE=99069219; PubMed=9851978; RA Cox D.N., Chao A., Baker J., Chang L., Qiao D., Lin H.; RT "A novel class of evolutionarily conserved genes defined by piwi are RT essential for stem cell self-renewal."; RL Genes Dev. 12:3715-3727(1998). RN [2] RP SEQUENCE FROM N.A. RC STRAIN=Berkeley; RX MEDLINE=20196006; PubMed=10731132; RA Adams M.D., Celniker S.E., Holt R.A., Evans C.A., Gocayne J.D., RA Amanatides P.G., Scherer S.E., Li P.W., Hoskins R.A., Galle R.F., RA George R.A., Lewis S.E., Richards S., Ashburner M., Henderson S.N., RA Sutton G.G., Wortman J.R., Yandell M.D., Zhang Q., Chen L.X., RA Brandon R.C., Rogers Y.-H.C., Blazej R.G., Champe M., Pfeiffer B.D., RA Wan K.H., Doyle C., Baxter E.G., Helt G., Nelson C.R., Miklos G.L.G., RA Abril J.F., Agbayani A., An H.-J., Andrews-Pfannkoch C., Baldwin D., RA Ballew R.M., Basu A., Baxendale J., Bayraktaroglu L., Beasley E.M., RA Beeson K.Y., Benos P.V., Berman B.P., Bhandari D., Bolshakov S., RA Borkova D., Botchan M.R., Bouck J., Brokstein P., Brottier P., RA Burtis K.C., Busam D.A., Butler H., Cadieu E., Center A., Chandra I., RA Cherry J.M., Cawley S., Dahlke C., Davenport L.B., Davies P., RA de Pablos B., Delcher A., Deng Z., Mays A.D., Dew I., Dietz S.M., RA Dodson K., Doup L.E., Downes M., Dugan-Rocha S., Dunkov B.C., Dunn P., RA Durbin K.J., Evangelista C.C., Ferraz C., Ferriera S., Fleischmann W., RA Fosler C., Gabrielian A.E., Garg N.S., Gelbart W.M., Glasser K., RA Glodek A., Gong F., Gorrell J.H., Gu Z., Guan P., Harris M., RA Harris N.L., Harvey D.A., Heiman T.J., Hernandez J.R., Houck J., RA Hostin D., Houston K.A., Howland T.J., Wei M.-H., Ibegwam C., RA Jalali M., Kalush F., Karpen G.H., Ke Z., Kennison J.A., Ketchum K.A., RA Kimmel B.E., Kodira C.D., Kraft C., Kravitz S., Kulp D., Lai Z., RA Lasko P., Lei Y., Levitsky A.A., Li J.H., Li Z., Liang Y., Lin X., RA Liu X., Mattei B., McIntosh T.C., McLeod M.P., McPherson D., RA Merkulov G., Milshina N.V., Mobarry C., Morris J., Moshrefi A., RA Mount S.M., Moy M., Murphy B., Murphy L., Muzny D.M., Nelson D.L., RA Nelson D.R., Nelson K.A., Nixon K., Nusskern D.R., Pacleb J.M., RA Palazzolo M., Pittman G.S., Pan S., Pollard J., Puri V., Reese M.G., RA Reinert K., Remington K., Saunders R.D.C., Scheeler F., Shen H., RA Shue B.C., Siden-Kiamos I., Simpson M., Skupski M.P., Smith T., RA Spier E., Spradling A.C., Stapleton M., Strong R., Sun E., RA Svirskas R., Tector C., Turner R., Venter E., Wang A.H., Wang X., RA Wang Z.-Y., Wassarman D.A., Weinstock G.M., Weissenbach J., RA Williams S.M., Woodage T., Worley K.C., Wu D., Yang S., Yao Q.A., RA Ye J., Yeh R.-F., Zaveri J.S., Zhan M., Zhang G., Zhao Q., Zheng L., RA Zheng X.H., Zhong F.N., Zhong W., Zhou X., Zhu S., Zhu X., Smith H.O., RA Gibbs R.A., Myers E.W., Rubin G.M., Venter J.C.; RT "The genome sequence of Drosophila melanogaster."; RL Science 287:2185-2195(2000). RN [3] RP FUNCTION, SUBCELLULAR LOCATION, AND TISSUE SPECIFICITY. RX PubMed=10631171; RA Cox D.N., Chao A., Lin H.; RT "piwi encodes a nucleoplasmic factor whose activity modulates the RT number and division rate of germline stem cells."; RL Development 127:503-514(2000). CC -!- FUNCTION: Mediates a somatic signaling mechanism required for the CC maintenance of germ-line stem cells to produce and maintain a CC daughter germ-line stem cell. It is not essential for the further CC differentiation of the committed daughter cell. Acts cell CC autonomously to promote germ line stem cell division. CC -!- SUBCELLULAR LOCATION: Nuclear. Nucleoplasm; nurse cells, follicle CC cells and oocytes in developing egg chambers. CC -!- TISSUE SPECIFICITY: Expressed somatically in the ovariole terminal CC filament and epithelial sheath cells. Expressed in the germarium CC at low levels during oogenesis stages 1-6, at a lower level during CC stages 7-9, strongly at stage 10 and eventually accumulating in CC early embryos. CC -!- DEVELOPMENTAL STAGE: Expressed both maternally and zygotically. CC -!- SIMILARITY: Belongs to the argonaute family. CC -!- SIMILARITY: Contains 1 PAZ domain. CC -!- SIMILARITY: Contains 1 Piwi domain. 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; AF104354; AAD08704.1; -. DR EMBL; AF104355; AAD08705.1; -. DR EMBL; AE003630; AAF53043.1; -. DR FlyBase; FBgn0004872; piwi. DR GO; GO:0005654; C:nucleoplasm; NAS. DR GO; GO:0048132; P:female germ-line stem cell division; IMP. DR GO; GO:0048133; P:male germ-line stem cell division; IMP. DR GO; GO:0017145; P:stem cell renewal; IMP. DR InterPro; IPR003100; PAZ. DR InterPro; IPR003165; Piwi. DR Pfam; PF02171; Piwi; 1. DR PROSITE; PS50821; PAZ; 1. DR PROSITE; PS50822; PIWI; 1. KW Developmental protein; Nuclear protein. FT DOMAIN 262 372 PAZ. FT DOMAIN 538 829 PIWI. FT CONFLICT 67 67 T -> P (in Ref. 1; AAD08704). FT CONFLICT 84 84 A -> V (in Ref. 1; AAD08704). FT CONFLICT 122 124 EPS -> VPT (in Ref. 1; AAD08704). FT CONFLICT 576 577 NR -> KPY (in Ref. 1; AAD08705). SQ SEQUENCE 843 AA; 97177 MW; 9B4A95E688E9D9B7 CRC64; MADDQGRGRR RPLNEDDSST SRGSGDGPRV KVFRGSSSGD PRADPRIEAS RERRALEEAP RREGGPTERK PWGDQYDYLN TRPAELVSKK GTDGVPVMLQ TNFFRLKTKP EWRIVHYHVE FEPSIENPRV RMGVLSNHAN LLGSGYLFDG LQLFTTRKFE QEITVLSGKS KLDIEYKISI KFVGFISCAE PRFLQVLNLI LRRSMKGLNL ELVGRNLFDP RAKIEIREFK MELWPGYETS IRQHEKDILL GTEITHKVMR TETIYDIMRR CSHNPARHQD EVRVNVLDLI VLTDYNNRTY RINDVDFGQT PKSTFSCKGR DISFVEYYLT KYNIRIRDHN QPLLISKNRD KALKTNASEL VVLIPELCRV TGLNAEMRSN FQLMRAMSSY TRMNPKQRTD RLRAFNHRLQ NTPESVKVLR DWNMELDKNV TEVQGRIIGQ QNIVFHNGKV PAGENADWQR HFRDQRMLTT PSDGLDRWAV IAPQRNSHEL RTLLDSLYRA ASGMGLRIRS PQEFIIYDDR TGTYVRAMDD CVRSDPKLIL CLVPNDNAER YSSIKKRGYV DRAVPTQVVT LKTTKNRSLM SIATKIAIQL NCKLGYTPWM IELPLSGLMT IGFDIAKSTR DRKRAYGALI ASMDLQQNST YFSTVTECSA FDVLANTLWP MIAKALRQYQ HEHRKLPSRI VFYRDGVSSG SLKQLFEFEV KDIIEKLKTE YARVQLSPPQ LAYIVVTRSM NTRFFLNGQN PPPGTIVDDV ITLPERYDFY LVSQQVRQGT VSPTSYNVLY SSMGLSPEKM QKLTYKMCHL YYNWSGTTRV PAVCQYAKKL ATLVGTNLHS IPQNALEKKF YYL //