Recombinant Human Protein XRP2(RP2)

Code CSB-EP020076HU
Size US$2466
  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

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Product Details

Purity Greater than 90% as determined by SDS-PAGE.
Target Names RP2
Uniprot No. O75695
Research Area Neuroscience
Alternative Names RP2; Protein XRP2
Species Homo sapiens (Human)
Source E.coli
Expression Region 1-350aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 66.5kDa
Protein Length Full Length
Tag Info N-terminal GST-tagged
Form Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Buffer If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol.
Note: If you have any special requirement for the glycerol content, please remark when you place the order.
If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0.
Reconstitution We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20°C/-80°C. Our default final concentration of glycerol is 50%. Customers could use it as reference.
and FAQs
Protein FAQs
Storage Condition Store at -20°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time Delivery time may differ from different purchasing way or location, please kindly consult your local distributors for specific delivery time.
Notes Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA Please contact us to get it.

Target Data

Function Acts as a GTPase-activating protein (GAP) involved in trafficking between the Golgi and the ciliary membrane. Involved in localization of proteins, such as NPHP3, to the cilium membrane by inducing hydrolysis of GTP ARL3, leading to the release of UNC119 (or UNC119B). Acts as a GTPase-activating protein (GAP) for tubulin in concert with tubulin-specific chaperone C, but does not enhance tubulin heterodimerization. Acts as guanine nucleotide dissociation inhibitor towards ADP-ribosylation factor-like proteins.
Gene References into Functions
  1. four frameshift mutations including three novel mutations of c.1059 + 1 G > T, c.2002dupC and c.2236_2237del CT, as well as a previously reported mutation of c.2899delG were detected in the RPGR gene in the other four families. Our study further expands the mutation spectrum of RP2 and RPGR, and will be helpful for further study molecular pathogenesis of X-linked retinitis pigmentosa. PMID: 28294154
  2. RP2 mutation would have a moderate pathogenic effect in photoreceptors carrying the mutation, causing abnormal outer segments, with the accumulation of lipofuscin similar to RDS/PRPH2 pattern dystrophy. PMID: 26885761
  3. this study identifies ARL3 as a key player in prenylated protein trafficking in rod photoreceptor cells and establishes the potential role for ARL3 dysregulation in the pathogenesis of RP2-related forms of XLRP PMID: 26936825
  4. Studies indicate taht the majority of patients with X-linked RP have mutations in the retinitis pigmentosa GTPase regulator (RPGR) or retinitis pigmentosa 2 protein (RP2) genes. PMID: 27911705
  5. study also reveals a role of the C-terminal domain of RP2 in maintaining the overall protein stability. PMID: 28209709
  6. Three XLRP families (RP-001, RP-002, and RP-003), composed of 13 individuals, were reported in this study, and 2 different mutations were detcted We found 3 genetic variants: a novel mutation c.1591G>T in exon 14 and a novel polymorphism c.1105C>T in exon 10, resulting in p.Glu531* and p.Arg369Cys of RPGR gene, respectively, and one already known mutation c.413A>G in exon 2, resulting in a p.Glu138Gly of RP2 gene PMID: 27768226
  7. We identified a novel causative mutation in RP2 from a single proband's exome sequence data analysis. This study highlights the effectiveness of the whole-exome sequencing in the genetic diagnosis of X-linked retinitis pigmentosa, over the conventional sequencing methods. PMID: 27769321
  8. Three mutations were identified in the ORF15 exon of RPGR. No RP2 mutations were found among the examined families. Mutation screening of RP patients is essential to understand the mechanism behind this disease and develop treatments PMID: 27323122
  9. The ability of the restored RP2 protein level to reverse the observed cellular phenotypes in cells lacking RP2 indicates that translational read-through could be clinically beneficial for patients. PMID: 25292197
  10. ellipsometric measurements of naRP2 demonstrated that its particular affinity for saturated phospholipids can be explained by its larger extent of insertion in this phospholipid monolayer compared to that in polyunsaturated phospholipid monolayers. PMID: 25844643
  11. The methylation state of CpG sites close to the RP2 core promoter (GAAA)n repeat serves as a proxy measurement of X-chromosome inactivation in human and non-human primates. PMID: 25078280
  12. A novel frameshift mutation in RP2 was detected. This mutation was located in exon 2 of the RP2 gene: a nucleotide C was inserted at 111 (c.111insC, Fig. 1A), which caused a protein translation frameshift PMID: 24479636
  13. Direct sequencing of RPGR and RP2 allowed for identification of a disease-causing mutation in 21 families. Of these "adRP" families 19 had RPGR mutations, and two had RP2 mutations. PMID: 23372056
  14. Based on our findings, we suggest that RPGR should be considered as a first tier gene for screening isolated males with retinal degeneration. PMID: 23150612
  15. data support a role for RP2 in facilitating the membrane association and traffic of Gbeta1, potentially prior to the formation of the obligate Gbeta:Ggamma heterodimer; combined with other recent evidence, this suggests that RP2 may co-operate with Arl3 and its effectors in the cilia-associated traffic of G proteins PMID: 22072390
  16. The localization of RP2 to basal bodies and cilia in photoreceptors and kidney cells has linked RP2 dysfunction with ciliopathies. PMID: 22183373
  17. Data demonstrate that Importin beta2 is necessary for localization of retinitis pigmentosa 2 (RP2) to the primary cilium, and identify two distinct binding sites of RP2, which interact independently with Importin beta2. PMID: 21285245
  18. An identifiable phenotype for RP2-X-linked retinitis pigmentosa aids in clinical diagnosis and targeted genetic screening. PMID: 20625056
  19. We propose that RP2 regulation of Arl3 is important for maintaining Golgi cohesion, facilitating the transport and docking of vesicles and thereby carrying proteins to the base of the photoreceptor connecting cilium for transport to the outer segment. PMID: 20106869
  20. Our results expand the frequency and spectrum of mutations at RPGR and RP2 as well as their associated clinical phenotypes in Chinese patients. PMID: 20021257
  21. The mutation 358C-->T is useful in analyzing the function of RP2 protein and gene diagnosis of X-linked retinitis pigmentosa (XLRP). PMID: 11798852
  22. functional overlap with tubulin-specific chaperone cofactor C PMID: 11847227
  23. A comprehensive mutation analysis of RP2 and RPGR in a North American cohort of families with X-linked retinitis pigmentosa. PMID: 11992260
  24. Patients with RP2 mutations had, on average, lower visual acuity but similar visual field area, final dark-adapted threshold, and 30-Hz ERG amplitude compared with those with RPGR mutations PMID: 14564670
  25. Mutations in the RP2 gene is associated with X-linked retinitis pigmentosa PMID: 14566651
  26. The data suggest that RP2 may have previously unrecognized roles as a DNA damage response factor and 3' to 5' exonuclease. PMID: 16457815
  27. The N-terminal 34 residues and beta helix domain of RP2 are required for interaction with Arl3. PMID: 16472755
  28. In this cohort of XLRP families, as has happened in previous studies, RP3 also seems to be the most prevalent form of XLRP, and, based on the results, the authors propose a four-step protocol for molecular diagnosis of XLRP families. PMID: 16936086
  29. Three ORF15 mutations and one RP2 mutation in five Japanese retinitis pigmentosa families. PMID: 17093403
  30. The proportion of RP2-mediated XLRP in the Danish population is higher and the proportion of RPGR-ORF15 is lower than reported in other studies. PMID: 17724181
  31. RP2 is an efficient GAP for Arl3, with structural features similar to other GAPs PMID: 18376416
  32. A transversion (T>A) at position -9 in intron 3 of RP2 causes X-linked retinitis pigmentosa (XLRP) by altering the splicing pattern and highlights the pathogenicity of intronic variants. PMID: 19516003

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Involvement in disease Retinitis pigmentosa 2 (RP2)
Subcellular Location Cell membrane, Lipid-anchor, Cytoplasmic side, Cell projection, cilium
Protein Families TBCC family
Tissue Specificity Ubiquitous. Expressed in the rod and cone photoreceptors, extending from the tips of the outer segment (OS) through the inner segment (IS) and outer nuclear layer (ONL) and into the synaptic terminals of the outer plexiform layer (ONL). Also detected in t
Database Links

HGNC: 10274

OMIM: 300757

KEGG: hsa:6102

STRING: 9606.ENSP00000218340

UniGene: Hs.44766

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