Recombinant Human PIWIL1 protein is a Human Fragment protein, in the 431 to 541 aa range, expressed in Wheat germ and suitable for ELISA, WB.
Images
Key facts
- Expression system
- Wheat germ
- Tags
- GST tag N-Terminus
- Applications
- ELISA, WB
- Biologically active
- No
Amino acid sequence
N D N V Q R E L R D W G L S F D S N L L S F S G R I L Q T E K I H Q G G K T F D Y N P Q F A D W S K E T R G A P L I S V K P L D N W L L I Y T R R N Y E A A N S L I Q N L F K V T P A M G M Q M R K A I M I E V D D R T E A Y
Reactivity data
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application ELISA | Reactivity Reacts | Dilution info - | Notes - |
Application WB | Reactivity Reacts | Dilution info - | Notes - |
Target data
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 governs 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). Not involved in the piRNA amplification loop, also named ping-pong amplification cycle. Acts as an endoribonuclease that cleaves transposon messenger RNAs. Besides their function in transposable elements repression, piRNAs are probably involved in other processes during meiosis such as translation regulation. Probable component of some RISC complex, which mediates RNA cleavage and translational silencing. Also plays a role in the formation of chromatoid bodies and is required for some miRNAs stability. Required to sequester RNF8 in the cytoplasm until late spermatogenesis; RNF8 being released upon ubiquitination and degradation of PIWIL1. Isoform 3. May be a negative developmental regulator (PubMed:12037681, PubMed:16287078).
Alternative names
HIWI, PIWIL1, Piwi-like protein 1
Recommended products
Recombinant Human PIWIL1 protein is a Human Fragment protein, in the 431 to 541 aa range, expressed in Wheat germ and suitable for ELISA, WB.
Key facts
- Expression system
- Wheat germ
- Tags
- GST tag N-Terminus
- Applications
- ELISA, WB
- Biologically active
- No
- Accession
- Q96J94-1
- Animal free
- No
- Species
- Human
- Concentration
- Storage buffer
pH: 8
Constituents: 0.79% Tris HCl, 0.31% Glutathione
Sequence info
Amino acid sequence
- N D N V Q R E L R D W G L S F D S N L L S F S G R I L Q T E K I H Q G G K T F D Y N P Q F A D W S K E T R G A P L I S V K P L D N W L L I Y T R R N Y E A A N S L I Q N L F K V T P A M G M Q M R K A I M I E V D D R T E A Y
- Accession
- Q96J94
- Protein length
- Fragment
- Amino acids
- 431 to 541
- Nature
- Recombinant
- Tags
- GST tag N-Terminus
Specifications
- Form
- Liquid
General info
- 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 governs 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). Not involved in the piRNA amplification loop, also named ping-pong amplification cycle. Acts as an endoribonuclease that cleaves transposon messenger RNAs. Besides their function in transposable elements repression, piRNAs are probably involved in other processes during meiosis such as translation regulation. Probable component of some RISC complex, which mediates RNA cleavage and translational silencing. Also plays a role in the formation of chromatoid bodies and is required for some miRNAs stability. Required to sequester RNF8 in the cytoplasm until late spermatogenesis; RNF8 being released upon ubiquitination and degradation of PIWIL1.
- Sequence similarities
Belongs to the argonaute family. Piwi subfamily.
- Post-translational modifications
Arginine methylation by PRMT5 is required for the interaction with Tudor domain-containing protein (TDRD1, TDRKH/TDRD2, RNF17/TDRD4, TDRD6, TDRD7 and TDRD9) and subsequent localization to the meiotic nuage, also named P granule.
Storage
- Shipped at conditions
- Dry Ice
- Appropriate short-term storage conditions
- -80°C
- Appropriate long-term storage conditions
- -80°C
- Aliquoting information
- Upon delivery aliquot
- Storage information
- Avoid freeze / thaw cycle
Supplementary info
- This supplementary information is collated from multiple sources and compiled automatically.
- Activity summary
PIWIL1 also known as Piwi-like protein 1 is a member of the Argonaute family with a molecular mass of approximately 97 kDa. This protein functions mechanically by binding to PIWI-interacting RNAs (piRNAs) which are small non-coding RNAs. PIWIL1 exhibits expression in germline cells specifically in testes therefore playing an important role in spermatogenesis. It facilitates the formation of piRNA complexes contributing to the regulation of gene silencing.
- Biological function summary
PIWIL1 contributes to maintaining genomic integrity through its role in RNA-mediated gene regulation. It forms part of the piRNA-induced silencing complex. This complex targets transposable elements and prevents their mobility an important function for genomic stability. PIWIL1's involvement in gametogenesis highlights its essential function in reproductive biology and cellular processes where piRNA pathways operate.
- Pathways
The PIWIL1 protein plays significant roles within the piRNA pathway which is important for transposon silencing and germline integrity. PIWIL1 interacts with MILI and MIWI two proteins that also participate in the silencing of transposable elements. This pathway intersects with other gene regulation pathways influencing the overall expression landscape necessary for proper cellular function in reproductive tissues.
- Associated diseases and disorders
PIWIL1 alterations have associations with germ cell tumors and fertility issues. Disruption in piRNA pathway components like PIWIL1 and its partners MIWI and MILI can lead to failures in genomic defense mechanisms influencing cancer development in germline cells. Additionally defects in PIWIL1 expression can contribute to infertility due to its role in spermatogenesis. Understanding these associations provides insights into potential diagnostic and therapeutic targets for related conditions.
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1 product image
SDS-PAGE - Recombinant Human PIWIL1 protein (ab152968)
ab152968 on a 12.5% SDS-PAGE stained with Coomassie Blue.
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