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PIWIL1

Gene
PIWIL1
Protein
Piwi-like protein 1
Organism
Gallus gallus
Length
867 amino acids
Function
Endoribonuclease that plays a central role in postnatal germ cells 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 proteins and govern the methylation and subsequent repression of transposons. Directly binds methylated piRNAs, a class of 24 to 30 nucleotide RNAs that are generated by a Dicer-independent mechanism and are primarily derived from transposons and other repeated sequence elements. Strongly prefers a uridine in the first position of their guide (g1U preference, also named 1U-bias). Besides their function in transposable elements repression, piRNAs are probably involved in other processes during meiosis such as translation regulation. Not involved in the piRNA amplification loop, also named ping-pong amplification cycle. Acts as an endoribonuclease that cleaves transposon messenger RNAs (By similarity).
Similarity
Belongs to the argonaute family. Piwi subfamily.
Mass
99.286 kDa
Sequence
MTGRARARARGRPPGQEAAIPPVGAASAQKTLPSHPSEQRQSLQPCHPPPLTEEPGGRGRQRGPQDAPKTLGLQISAGFQELSLADRGGRRRDFHDLGVNTRQAIEHVRESKTGSSGAMIKLIANFFRLTSRPQWALYQYHVDYNPEMEARRLRSGLLFQHEDLIGKTHAFDGSILFLPKRLPNKVTEVYSKTRNGEDVRITITLTNELPPTSPTCLQFYNIIFRRLLKMMNFQQIGRNYYNPKDPVSIPNHRLMVWPGFTSSILQYEESIMLCADVSHKILRSETVLDFMYSLYEQVEERRFRDACAKELIGVIVLTKYNNRTYRVDDIDWDANPQCTFRRADGSEISYIDYYKRQYNQDISDLNQPVLISQYRRKRGNVTVGPVVLIPELCYLTGLTEKMRNDFNMMKDLAVHTRLSPEQRQREIGKLVDCMKKDECVQKELRDWGLSFDSSLLSFTGRVVQAEKILQAGNVFDYNPQFADWSRETRVAPLIHAKPLDNWLLIYTRRNYDAANMLLQNLFKVTPSMGIRMNKATMIEVDDRTEAYLRVLQQSITPDTNIVVCILSSTRKDKYDAIKKYLCTDCPIPSQCVVARTLSKPQTALAIVTKIALQMNCKMGGELWSVEIPLKQLMIVGIDCYHDTLSGKQSIAGFVASLNEKMTRWFSRCVVQSRGQEIVDGLKACLQTALREWFKWNKYLPSRIIVYRDGVGDGQLNTLVNYEVPQFLDCLKTVGKDYNPRLTVIVVKKRVSTRFFAQAGGGLKNPPPGTVVDIEVTRPEWYDFFIVSQAVRNGCVAPTHYNVVYDTSKLKPDHVQRLTYKLCHMYYNWSGVIRVPAPCQYAHKLAFLVGQSIHREPNLLLSDRLYYL

Gene
Piwil1
Protein
Piwi-like protein 1
Organism
Mus musculus
Length
862 amino acids
Function
Endoribonuclease that plays a central role in postnatal germ cells by repressing transposable elements and preventing their mobilization, which is essential for the germline integrity (PubMed:11578866, PubMed:22121019, PubMed:21237665). Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons (PubMed:11578866, PubMed:22121019, PubMed:21237665). Directly binds methylated piRNAs, a class of 24 to 30 nucleotide RNAs that are generated by a Dicer-independent mechanism and are primarily derived from transposons and other repeated sequence elements (PubMed:11578866, PubMed:22121019, PubMed:21237665). Strongly prefers a uridine in the first position of their guide (g1U preference, also named 1U-bias) (PubMed:24757166). Not involved in the piRNA amplification loop, also named ping-pong amplification cycle (PubMed:22121019). Acts as an endoribonuclease that cleaves transposon messenger RNAs (PubMed:22121019). Besides their function in transposable elements repression, piRNAs are probably involved in other processes during meiosis such as translation regulation (PubMed:16938833). Probable component of some RISC complex, which mediates RNA cleavage and translational silencing (PubMed:16938833). Also plays a role in the formation of chromatoid bodies and is required for some miRNAs stability (PubMed:16787948). Required to sequester RNF8 in the cytoplasm until late spermatogenesis; RNF8 being released upon ubiquitination and degradation of PIWIL1 (PubMed:28552346).
Similarity
Belongs to the argonaute family. Piwi subfamily.
Mass
98.574 kDa
Sequence
MTGRARARARGRARGQETVQHVGAAASQQPGYIPPRPQQSPTEGDLVGRGRQRGMVVGATSKSQELQISAGFQELSLAERGGRRRDFHDLGVNTRQNLDHVKESKTGSSGIIVKLSTNHFRLTSRPQWALYQYHIDYNPLMEARRLRSALLFQHEDLIGRCHAFDGTILFLPKRLQHKVTEVFSQTRNGEHVRITITLTNELPPTSPTCLQFYNIIFRRLLKIMNLQQIGRNYYNPSDPIDIPNHRLVIWPGFTTSILQYENNIMLCTDVSHKVLRSETVLDFMFNLYQQTEEHKFQEQVSKELIGLIVLTKYNNKTYRVDDIDWDQNPKSTFKKADGSEVSFLEYYRKQYNQEITDLKQPVLVSQPKRRRGPGGTLPGPAMLIPELCYLTGLTDKMRNDFNVMKDLAVHTRLTPEQRQREVGRLIDYIHKDDNVQRELRDWGLSFDSNLLSFSGRILQSEKIHQGGKTFDYNPQFADWSKETRGAPLISVKPLDNWLLIYTRRNYEAANSLIQNLFKVTPAMGIQMKKAIMIEVDDRTEAYLRALQQKVTSDTQIVVCLLSSNRKDKYDAIKKYLCTDCPTPSQCVVARTLGKQQTVMAIATKIALQMNCKMGGELWRVDMPLKLAMIVGIDCYHDTTAGRRSIAGFVASINEGMTRWFSRCVFQDRGQELVDGLKVCLQAALRAWSGCNEYMPSRVIVYRDGVGDGQLKTLVNYEVPQFLDCLKSVGRGYNPRLTVIVVKKRVNARFFAQSGGRLQNPLPGTVIDVEVTRPEWYDFFIVSQAVRSGSVSPTHYNVIYDSSGLKPDHIQRLTYKLCHVYYNWPGVIRVPAPCQYAHKLAFLVGQSIHREPNLSLSNRLYYL

Gene
PIWIL1
Protein
Piwi-like protein 1
Organism
Homo sapiens
Length
861 amino acids
Function
Isoform 3: May be a negative developmental regulator (PubMed:12037681, PubMed:16287078).
Similarity
Belongs to the argonaute family. Piwi subfamily.
Mass
98.603 kDa
Sequence
MTGRARARARGRARGQETAQLVGSTASQQPGYIQPRPQPPPAEGELFGRGRQRGTAGGTAKSQGLQISAGFQELSLAERGGRRRDFHDLGVNTRQNLDHVKESKTGSSGIIVRLSTNHFRLTSRPQWALYQYHIDYNPLMEARRLRSALLFQHEDLIGKCHAFDGTILFLPKRLQQKVTEVFSKTRNGEDVRITITLTNELPPTSPTCLQFYNIIFRRLLKIMNLQQIGRNYYNPNDPIDIPSHRLVIWPGFTTSILQYENSIMLCTDVSHKVLRSETVLDFMFNFYHQTEEHKFQEQVSKELIGLVVLTKYNNKTYRVDDIDWDQNPKSTFKKADGSEVSFLEYYRKQYNQEITDLKQPVLVSQPKRRRGPGGTLPGPAMLIPELCYLTGLTDKMRNDFNVMKDLAVHTRLTPEQRQREVGRLIDYIHKNDNVQRELRDWGLSFDSNLLSFSGRILQTEKIHQGGKTFDYNPQFADWSKETRGAPLISVKPLDNWLLIYTRRNYEAANSLIQNLFKVTPAMGMQMRKAIMIEVDDRTEAYLRVLQQKVTADTQIVVCLLSSNRKDKYDAIKKYLCTDCPTPSQCVVARTLGKQQTVMAIATKIALQMNCKMGGELWRVDIPLKLVMIVGIDCYHDMTAGRRSIAGFVASINEGMTRWFSRCIFQDRGQELVDGLKVCLQAALRAWNSCNEYMPSRIIVYRDGVGDGQLKTLVNYEVPQFLDCLKSIGRGYNPRLTVIVVKKRVNTRFFAQSGGRLQNPLPGTVIDVEVTRPEWYDFFIVSQAVRSGSVSPTHYNVIYDNSGLKPDHIQRLTYKLCHIYYNWPGVIRVPAPCQYAHKLAFLVGQSIHREPNLSLSNRLYYL

Gene
piwil1
Protein
Piwi-like protein 1
Organism
Danio rerio
Length
858 amino acids
Function
Plays a central role during gametogenesis by repressing transposable elements and preventing their mobilization, which is essential for the germline integrity (PubMed:14516689, PubMed:17418787, PubMed:18833190). Acts via the piRNA metabolic process, which mediates the repression of transposable elements during meiosis by forming complexes composed of piRNAs and Piwi proteins and governs the methylation and subsequent repression of transposons (PubMed:14516689, PubMed:17418787, PubMed:18833190). Directly binds methylated piRNAs, a class of 24 to 30 nucleotide RNAs that are generated by a Dicer-independent mechanism and are primarily derived from transposons and other repeated sequence elements (PubMed:14516689, PubMed:17418787, PubMed:18833190). Has a strong preference for piRNAs with a uridine nucleotide at their 5'-end (g1U preference, also named 1U-bias) and binds piRNAs in an opposite direction compared to piwil2/zili (PubMed:14516689, PubMed:17418787, PubMed:18833190). Participates in a piRNA amplification loop with piwil2/zili (PubMed:14516689, PubMed:17418787, PubMed:18833190). Not involved in the piRNA amplification loop, also named ping-pong amplification cycle. Acts as an endoribonuclease that cleaves transposon messenger RNAs (By similarity).
Similarity
Belongs to the argonaute family. Piwi subfamily.
Mass
97.451 kDa
Sequence
MTGRARARSRGRGRGQEPAAPGAQPPVSQEAAKPVVSTPSEGQLVGRGRQKPAPGAMSEEAMLQISAGFQQVKIGERGGRRRDFHDSGVHTRQLMEHVKESKTGVSGTAIELRANFMRLLSRPMWALYQYHVDYKPPMESRRLRSALLFQHEETLGKAHTFDGAILFLPNKLRNAETVLCSETRNGEKVEITVTLTNELPPSSPVCLQFYNILFRRILRILNMQQIGRHYYNPDDPFNIPQHRLTIWPGFMTTILQYESSIMLCSDVSHKVLRSETVLDFMYSLRQQCGDQRFPEACTKELVGLIILTKYNNKTYRIDDIAWDHTPNNTFKKGDTEISFKNYFKSQYGLDITDGNQVLLVSHVKRLGPSGRPPPGPAMLVPEFCYLTGLTDKMRADFNIMKDLASHTRLSPEQREGRINRLISNINRNGDVQNELTTWGLSFENKLLSLNGRVLPSERIIQGGRAFEYNPWTADWSKEMRGLPLISCMSLDNWLMFYTRRNADVAQSLLQTLNKVSGPMGIRMQRAVMIEYEDRQESLLRALQQNVARETQMVVVILPTNRKDKYDCVKKYLCVDCPTPSQCVVSRTISKPQALMTVATKIALQMNCKMGGELWSVEIPLRQLMIVGIDCYHDTAAGKRSIGAMVASLNQGMSRWFSKCVLQNRGQEIIDALKGSLQGALKAYLKYNNSLPSRIIVYRDGVGDGMLQSVVDYEVPQIMQSIKTMGQDYEPKLSVVVVKKRISSRFFARIDGKIANPPPGTVIDTEVTRPEWYDFFIVSQAVRFGCVAPTHYNVVFDNSGLKPDHMQRLTYKLCHMYYNWQGIVRVPAPCQYAHKLAFLVGQSIHKEPNMNLDDFLYYL