Recombinant Human U1 small nuclear ribonucleoprotein A(SNRPA),partial

Code CSB-EP022327HU1
Size US$1726Purchase it in Cusabio online store
(only available for customers from the US)
  • (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 SNRPA
Uniprot No. P09012
Research Area Transcription
Alternative Names fc19d01; Mud1; small nuclear ribonucleoprotein polypeptide A; snRNP A; snRNP protein A; SNRPA; SNRPA_HUMAN; U1 small nuclear ribonucleoprotein A; U1 small nuclear RNP specific A; U1 snRNP A; U1 snRNP specific protein A; U1-A; U1A; wu:fc19d01; zgc:77810
Species Homo sapiens (Human)
Source E.coli
Expression Region 8-278aa
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight 57.0kDa
Protein Length Partial
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.

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Target Data

Function Component of the spliceosomal U1 snRNP, which is essential for recognition of the pre-mRNA 5' splice-site and the subsequent assembly of the spliceosome. U1 snRNP is the first snRNP to interact with pre-mRNA. This interaction is required for the subsequent binding of U2 snRNP and the U4/U6/U5 tri-snRNP. SNRPA binds stem loop II of U1 snRNA. In a snRNP-free form (SF-A) may be involved in coupled pre-mRNA splicing and polyadenylation process. May bind preferentially to the 5'-UGCAC-3' motif on RNAs.
Gene References into Functions
  1. SNRPA may contribute to GC progression via NGF and could be a prognostic biomarker for GC. PMID: 30039889
  2. p65 activation triggered by TCR signaling could promote SNRPA transcription and 3' UTR shortening of STAT5B. Thus we propose that the alternative polyadenylation switching of STAT5B induced by TCR activation is mediated by SNRPA. PMID: 28954886
  3. a new mechanism for regulating SMN levels and provides new insight into the roles of U1A in 3' processing of mRNAs. PMID: 24362020
  4. An analysis of the kinetic data suggests three phases of U1A-SL2 RNA complex dissociation with time scales of approximately 100 mus, approximately 50 ms, and approximately 2 s. We propose that the first step of dissociation is a fast rearrangement of the complex to form a loosely bound complex. PMID: 21419778
  5. structural analysis of U1A protein-stem loop 2 RNA recognition PMID: 21384338
  6. study shows that the yellow fever virus (YFV) NS5 protein is able to interact with U1A, a protein involved in splicing and polyadenylation; a region between amino acids 368 and 448 was identified as the site of interaction of the NS5 protein with U1A PMID: 21298455
  7. 13)C NMR relaxation studies of base and ribose dynamics for the RNA internal loop target of human U1A protein located within the 3'-untranslated region (3'-UTR) of the mRNA coding for U1A itself PMID: 15890361
  8. Identification of PSF, p54(nrb), PTB, and U1A as proteins specifically bound to the COX-2 polyadenylation signal upstream sequence elements . PMID: 17507659
  9. Functional U1A site in a cellular gene and of a single gene containing two dissimilar elements that inhibit nuclear polyadenylation. PMID: 17942741

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Subcellular Location Nucleus
Protein Families RRM U1 A/B'' family
Database Links

HGNC: 11151

OMIM: 182285

KEGG: hsa:6626

STRING: 9606.ENSP00000243563

UniGene: Hs.466775


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