QKI Protein (AA 1-341) (Strep Tag)
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- 抗原 See all QKI 蛋白
- QKI (Protein Quaking (QKI))
- 蛋白类型
- Recombinant
- 产品特性
- AA 1-341
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宿主
- 人
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资源
- Tobacco (Nicotiana tabacum)
- 标记
- This QKI protein is labelled with Strep Tag.
- 应用范围
- ELISA, Western Blotting (WB), SDS-PAGE (SDS)
- 序列
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MVGEMETKEK PKPTPDYLMQ LMNDKKLMSS LPNFCGIFNH LERLLDEEIS RVRKDMYNDT LNGSTEKRSA ELPDAVGPIV QLQEKLYVPV KEYPDFNFVG RILGPRGLTA KQLEAETGCK IMVRGKGSMR DKKKEEQNRG KPNWEHLNED LHVLITVEDA QNRAEIKLKR AVEEVKKLLV PAAEGEDSLK KMQLMELAIL NGTYRDANIK SPALAFSLAA TAQAAPRIIT GPAPVLPPAA LRTPTPAGPT IMPLIRQIQT AVMPNGTPHP TAAIVPPGPE AGLIYTPYEY PYTLAPATSI LEYPIEPSGV LGAVATKVRR HDMRVHPYQR IVTADRAATG N
Sequence without tag. The proposed Strep-Tag is based on experience s with the expression system, a different complexity of the protein could make another tag necessary. In case you have a special request, please contact us. - 产品特性
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Key Benefits:
- Made in Germany - from design to production - by highly experienced protein experts.
- Protein expressed with ALiCE® and purified by multi-step, protein-specific process to ensure correct folding and modification.
- These proteins are normally active (enzymatically functional) as our customers have reported (not tested by us and not guaranteed).
- State-of-the-art algorithm used for plasmid design (Gene synthesis).
This protein is a made-to-order protein and will be made for the first time for your order. Our experts in the lab will ensure that you receive a correctly folded protein.
The big advantage of ordering our made-to-order proteins in comparison to ordering custom made proteins from other companies is that there is no financial obligation in case the protein cannot be expressed or purified.
Expression System:- ALiCE®, our Almost Living Cell-Free Expression System is based on a lysate obtained from Nicotiana tabacum c.v.. This contains all the protein expression machinery needed to produce even the most difficult-to-express proteins, including those that require post-translational modifications.
- During lysate production, the cell wall and other cellular components that are not required for protein production are removed, leaving only the protein production machinery and the mitochondria to drive the reaction. During our lysate completion steps, the additional components needed for protein production (amino acids, cofactors, etc.) are added to produce something that functions like a cell, but without the constraints of a living system - all that's needed is the DNA that codes for the desired protein!
Concentration:- The concentration of our recombinant proteins is measured using the absorbance at 280nm.
- The protein's absorbance will be measured in several dilutions and is measured against its specific reference buffer.
- We use the Expasy's ProtParam tool to determine the absorption coefficient of each protein.
- 纯化方法
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Two step purification of proteins expressed in Almost Living Cell-Free Expression System (ALiCE®):
- In a first purification step, the protein is purified from the cleared cell lysate using StrepTag capture material. Eluate fractions are analyzed by SDS-PAGE.
- Protein containing fractions of the best purification are subjected to second purification step through size exclusion chromatography. Eluate fractions are analyzed by SDS-PAGE and Western blot.
- 纯度
- >80 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.
- 内毒素水平
- Low Endotoxin less than 1 EU/mg (< 0.1 ng/mg)
- 质量等级
- Crystallography grade
- Top Product
- Discover our top product QKI 蛋白
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Protein Quaking (QKI) (AA 1-341) protein (His tag)
QKI 宿主: 人 宿主: 大肠杆菌（E. Coli） Recombinant Greater than 95 % as determined by SDS-PAGE ELISA, WB
Protein Quaking (QKI) (AA 1-319) protein (GST tag)QKI 宿主: 人 宿主: 小麦胚 Recombinant ELISA, WB, AP, AA
Protein Quaking (QKI) (AA 1-341) protein (Strep Tag)Crystallography grade QKI 宿主: 小鼠 宿主: Tobacco (Nicotiana tabacum) Recombinant ≥ 80 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot. ELISA, WB, SDS
Protein Quaking (QKI) (Transcript Variant 1) protein (Myc-DYKDDDDK Tag)QKI 宿主: 人 宿主: HEK-293 Cells Recombinant > 80 % as determined by SDS-PAGE and Coomassie blue staining AbP, STD
Protein Quaking (QKI) (Transcript Variant 3) protein (Myc-DYKDDDDK Tag)QKI 宿主: 人 宿主: HEK-293 Cells Recombinant > 80 % as determined by SDS-PAGE and Coomassie blue staining AbP, STD
Protein Quaking (QKI) (Transcript Variant 4) protein (Myc-DYKDDDDK Tag)QKI 宿主: 人 宿主: HEK-293 Cells Recombinant > 80 % as determined by SDS-PAGE and Coomassie blue staining AbP, STD
Protein Quaking (QKI) (Transcript Variant 2) protein (Myc-DYKDDDDK Tag)QKI 宿主: 人 宿主: HEK-293 Cells Recombinant > 80 % as determined by SDS-PAGE and Coomassie blue staining AbP, STD
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- 应用备注
- In addition to the applications listed above we expect the protein to work for functional studies as well. As the protein has not been tested for functional studies yet we cannot offer a guarantee though.
- 说明
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ALiCE®, our Almost Living Cell-Free Expression System is based on a lysate obtained from Nicotiana tabacum c.v.. This contains all the protein expression machinery needed to produce even the most difficult-to-express proteins, including those that require post-translational modifications.
During lysate production, the cell wall and other cellular components that are not required for protein production are removed, leaving only the protein production machinery and the mitochondria to drive the reaction. During our lysate completion steps, the additional components needed for protein production (amino acids, cofactors, etc.) are added to produce something that functions like a cell, but without the constraints of a living system - all that's needed is the DNA that codes for the desired protein! - 限制
- 仅限研究用
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- 状态
- Liquid
- 缓冲液
- The buffer composition is at the discretion of the manufacturer. If you have a special request, please contact us.
- 注意事项
- Avoid repeated freeze-thaw cycles.
- 储存条件
- -80 °C
- 储存方法
- Store at -80°C.
- 有效期
- Unlimited (if stored properly)
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- 抗原
- QKI (Protein Quaking (QKI))
- 别名
- QKI (QKI 产品)
- 别名
- Hqk Protein, QK Protein, QK1 Protein, QK3 Protein, hqkI Protein, 1110003F05Rik Protein, 1500005P18 Protein, QkI Protein, l(17)-1Wis Protein, l17Wis1 Protein, Qki Protein, CQKI Protein, QKI-5 Protein, PqkI Protein, BqkI Protein, qk Protein, qk1 Protein, quaking Protein, Xqua Protein, qki Protein, EQKI Protein, EqkI Protein, QKI, KH domain containing RNA binding Protein, quaking Protein, QKI, KH domain containing, RNA binding S homeolog Protein, QKI, KH domain containing, RNA binding L homeolog Protein, QKI Protein, Qk Protein, qki.S Protein, qki.L Protein, Qki Protein
- 背景
- KH domain-containing RNA-binding protein QKI (Protein quaking) (Hqk) (HqkI),FUNCTION: RNA reader protein, which recognizes and binds specific RNAs, thereby regulating RNA metabolic processes, such as pre-mRNA splicing, circular RNA (circRNA) formation, mRNA export, mRNA stability and/or translation (PubMed:22398723, PubMed:25768908, PubMed:27029405, PubMed:31331967, PubMed:23630077, PubMed:37379838). Involved in various cellular processes, such as mRNA storage into stress granules, apoptosis, lipid deposition, interferon response, glial cell fate and development (PubMed:25768908, PubMed:31829086, PubMed:34428287, PubMed:37379838). Binds to the 5'-NACUAAY-N(1,20)-UAAY-3' RNA core sequence (PubMed:23630077). Acts as a mRNA modification reader that specifically recognizes and binds mRNA transcripts modified by internal N(7)-methylguanine (m7G) (PubMed:37379838). Promotes the formation of circular RNAs (circRNAs) during the epithelial to mesenchymal transition and in cardiomyocytes: acts by binding to sites flanking circRNA-forming exons (PubMed:25768908). CircRNAs are produced by back-splicing circularization of pre-mRNAs (PubMed:25768908). Plays a central role in myelinization via 3 distinct mechanisms (PubMed:16641098). First, acts by protecting and promoting stability of target mRNAs such as MBP, SIRT2 and CDKN1B, which promotes oligodendrocyte differentiation (By similarity). Second, participates in mRNA transport by regulating the nuclear export of MBP mRNA (By similarity). Finally, indirectly regulates mRNA splicing of MAG pre-mRNA during oligodendrocyte differentiation by acting as a negative regulator of MAG exon 12 alternative splicing: acts by binding to HNRNPA1 mRNA splicing factor, preventing its translation (By similarity). Involved in microglia differentiation and remyelination by regulating microexon alternative splicing of the Rho GTPase pathway (By similarity). Involved in macrophage differentiation: promotes monocyte differentiation by regulating pre-mRNA splicing in naive peripheral blood monocytes (PubMed:27029405). Acts as an important regulator of muscle development: required for the contractile function of cardiomyocytes by regulating alternative splicing of cardiomyocyte transcripts (By similarity). Acts as a negative regulator of thermogenesis by decreasing stability, nuclear export and translation of mRNAs encoding PPARGC1A and UCP1 (By similarity). Also required for visceral endoderm function and blood vessel development (By similarity). May also play a role in smooth muscle development (PubMed:31331967). In addition to its RNA-binding activity, also acts as a nuclear transcription coactivator for SREBF2/SREBP2 (By similarity). {ECO:0000250|UniProtKB:Q9QYS9, ECO:0000269|PubMed:16641098, ECO:0000269|PubMed:22398723, ECO:0000269|PubMed:23630077, ECO:0000269|PubMed:25768908, ECO:0000269|PubMed:27029405, ECO:0000269|PubMed:31331967, ECO:0000269|PubMed:31829086, ECO:0000269|PubMed:34428287, ECO:0000269|PubMed:37379838}., FUNCTION: [Isoform QKI5]: Nuclear isoform that acts as an indirect regulator of mRNA splicing (By similarity). Regulates mRNA splicing of MAG pre-mRNA by inhibiting translation of HNRNPA1 mRNA, thereby preventing MAG exon 12 alternative splicing (By similarity). Involved in oligodendrocyte differentiation by promoting stabilization of SIRT2 mRNA (By similarity). Acts as a negative regulator of the interferon response by binding to MAVS mRNA, downregulating its expression (PubMed:31829086). Also inhibits the interferon response by binding to fibrinectin FN1 pre-mRNA, repressing EDA exon inclusion in FN1 (PubMed:34428287). Delays macrophage differentiation by binding to CSF1R mRNA, promoting its degradation (PubMed:22398723). In addition to its RNA-binding activity, also acts as a nuclear transcription coactivator for SREBF2/SREBP2, promoting SREBF2/SREBP2-dependent cholesterol biosynthesis (By similarity). SREBF2/SREBP2-dependent cholesterol biosynthesis participates to myelinization and is required for eye lens transparency (By similarity). {ECO:0000250|UniProtKB:Q9QYS9, ECO:0000269|PubMed:22398723, ECO:0000269|PubMed:31829086, ECO:0000269|PubMed:34428287}., FUNCTION: [Isoform QKI6]: Cytosolic isoform that specifically recognizes and binds mRNA transcripts modified by internal N(7)-methylguanine (m7G) (PubMed:37379838). Interaction with G3BP1 promotes localization of m7G-containing mRNAs into stress granules in response to stress, thereby suppressing their translation (PubMed:37379838). Acts as a translational repressor for HNRNPA1 and GLI1 (By similarity). Translation inhibition of HNRNPA1 during oligodendrocyte differentiation prevents inclusion of exon 12 in MAG pre-mRNA splicing (By similarity). Involved in astrocyte differentiation by regulating translation of target mRNAs (By similarity). {ECO:0000250|UniProtKB:Q9QYS9, ECO:0000269|PubMed:37379838}., FUNCTION: [Isoform QKI7]: Cytosolic isoform that specifically recognizes and binds mRNA transcripts modified by internal N(7)-methylguanine (m7G) (PubMed:37379838). Interaction with G3BP1 promotes localization of m7G-containing mRNAs into stress granules in response to stress, thereby suppressing their translation (PubMed:37379838). Acts as a negative regulator of angiogenesis by binding to mRNAs encoding CDH5, NLGN1 and TNFAIP6, promoting their degradation (PubMed:32732889). Can also induce apoptosis in the cytoplasm (By similarity). Heterodimerization with other isoforms results in nuclear translocation of isoform QKI7 and suppression of apoptosis (By similarity). Also binds some microRNAs: promotes stabilitation of miR-122 by mediating recruitment of poly(A) RNA polymerase TENT2, leading to 3' adenylation and stabilization of miR-122 (PubMed:31792053). {ECO:0000250|UniProtKB:Q9QYS9, ECO:0000269|PubMed:31792053, ECO:0000269|PubMed:32732889, ECO:0000269|PubMed:37379838}.
- 分子量
- 37.7 kDa
- UniProt
- Q96PU8
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