Protein: Probable ATP-dependent RNA helicase spindle-E (EC 3.6.4.13) (Protein homeless) (Q9VF26)
Organism: Drosophila melanogaster (Fruit fly)
Function: Probable ATP-binding RNA helicase which plays a central role during spermatogenesis and oogenesis by repressing transposable elements and preventing their mobilization, which is essential for the germline integrity. Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi and govern the methylation and subsequent repression of transposons. Involved in the repression of LTR retrotransposon copia. Also involved in telomere regulation by repressing specialized telomeric retroelements HeT-A, TAHRE, and TART; Drosophila telomeres being maintained by transposition of specialized telomeric retroelements. Involved in telomeric trans-silencing, a repression mechanism by which a transposon or a transgene inserted in subtelomeric heterochromatin has the capacity to repress in trans in the female germline, a homologous transposon, or transgene located in euchromatin. Involved in the repression of testis-expressed Stellate genes by the homologous Su(Ste) repeats. Required for anteroposterior and dorsoventral axis formation during oogenesis.
Subcellular location: Cytoplasm {ECO:0000269|PubMed:26295961}. Cytoplasm, perinuclear region {ECO:0000269|PubMed:26295961}. Cytoplasm, Cytoplasmic ribonucleoprotein granule {ECO:0000269|PubMed:26295961}. Note=Component of the perinuclear meiotic nuage (also known as germline granule or P granule), a germline-specific membraneless ribonucleoprotein biocondensate involved in post-transcriptional regulation of gene expression. {ECO:0000269|PubMed:26295961}.
Interaction partners:
- Protein piwi
- Protein aubergine
- Tudor domain-containing protein krimp
- Probable RNA helicase armi
- Protein vreteno
- Mitochondrial cardiolipin hydrolase
- Qin
- FI02030p
- Protein argonaute-3
- Putative ATP-dependent RNA helicase BoYb
Sequence:
MDQEVMDFFDFSKELKRVAAAPQGYISSDPRLMATKFKSSEVPNRELIGTDYVSKIVAKEKCLLNGTLLNEQPQGKRIRTLDDLDTDDEGEETEIRRDDEYYKKFRFNLNRDKNLSIYAKREEILAAINAHPVVIIKGETGCGKTTQVPQYILDEAYKSGKYCNIVVTQPRRIAAISIANRVCQEREWQQNTVCSFQVGLHRPNSLEDTRLLYCTTGVLLNNLINNKTLTHYTHIVLDEVHERDQNMDFLLIVVRRLLATNSRHVKIILMSATIDAKELSDYFTTTNSIPPVITTNHRRKHSIEKFYRDQLGSIIWNEEDVGHQQVPEINKHGYRAAVKIIVIIDNMERKAAIQSRQSYDEALRYGAVLIFLPGIYEIDTMAENLTCMLENDPNIKVSIVRCFSLMTPENQRDVFNPPPPGFRKIILTTNIAESSITVPDVSYVIDFCLAKVKVTDTASSFSSLRLTWASKANCRQRAGRVGRLRSGRVYRMVNKHFYQREMPEFGIPEMLRLPLQNSVLKAKVLNMGSPVEILALALSPPNLSDIHNTILLLKEVGALYLTVDGIYDPLDGDLTYWGTIMSRLPLDTRQSRLIILGYIFNMLEEAIIIAAGLSTPGLFAHEGGRSQLGDSFWMHYIFSDGSGSDLVAIWRVYLTYLNIVENGHDQESAIRWAKRFHVSLRSLKEIHLLVQELRVRCTHLGLIPFPVNPNQMMDDREKAIMLKVIIAGAFYPNYFTRSKESCADTDRNIYQTISGHDPCRTVYFTNFKPAYMGELYTRRIKELFQEVRIPPENMDVTFQEGSQKVFVTFKQDDWIEGSSKYVPVSGRVQSEVYKAVMMRQNRVERPIHIMNPSAFMSYVQQRGIGDVIEGRWIPPTKPLNVELLALPSVFDKTISGSITCIVNCGKFFFQPQSFEECIRNMSEIFNAPQQLRNYVTNASAIAKGMMVLAKRDSYFQRATVIRPENQSNRQPMFYVRFIDYGNCTLLPMQLMRLMPRELTEQYGDLPPRVFECRLAMVQPSSVVSGNNRWSTAANDMLKTVAQCGLIDIEVYSLFNNVAAVLIHMRDGIINDKLVELMLCRRSDEDYMSRKDHDFRLRRQESARNLSTAQRQQINEEYLRSCQLPQDHDLPPPPLEKCKTVVMLKGPNSPLECTMRSITRVGLSKRVNIDHLSVNALLLDADPQDHHDHLIVAHEIAESRNGQTLTARGTTLMPNVQGFGALMVMLFSPTMQLKCNKEGTSYVSVLGGLGCDPDTNEPYFAEHDVLINLDVNILEDDVILINQIRYYIDSVFFNFKEENNPAVSVNERVSIYTQLRSLINRLLCKDRRYIERNMSNADFEWETNPELPLPNEPFGKRAIFPMHSLTELQEEDTGRLVQLRENCSMLHKWRNFEGTLPHMTCKLCNQLLESVPQLRLHLLTILHRDREKQIDYCNQ