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Human SCAF4 Recombinant Protein (N-His) (HC973012)

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Overview
Catalog No.HC973012
Description
Recombinant Human SCAF4 Protein, N-His (HC973012) expressed in E. coli, spanning Glu501-Lys635. Purity: >90% by SDS-PAGE.
Highlights
  • His-Tagged — N-terminal 6×His tag for IMAC purification.
  • E. coli Expression — High-yield, cost-effective production.
  • High Purity — >90% purity verified by SDS-PAGE.
Expression systemE. coli
AccessionO95104
Protein lengthGlu501-Lys635
ApplicationsELISA, Immunogen, SDS-PAGE, WB, Bioactivity testing in progress
SpeciesHomo sapiens (Human)
Nature Recombinant
Endotoxin level Please contact with the lab for this information.
Purity >90% as determined by SDS-PAGE.
Predicted molecular weight 17.66 kDa
Form Lyophilized
Storage buffer Lyophilized from a solution in PBS pH 7.4, 1 mM EDTA, 4% Trehalose, 1% Mannitol.

Please refer to the specific buffer information in the hardcopy of datasheet or the lot-specific COA.

Reconstitution Reconstitute in sterile water for a stock solution. A copy of datasheet will be provided with the products, please refer to it for details.
Shipping In general, proteins are provided as lyophilized powder/frozen liquid. They are shipped out with dry ice/blue ice unless customers require otherwise.
Stability and Storage Use a manual defrost freezer and avoid repeated freeze thaw cycles. Store at 2 to 8°C for frequent use. Store at -20 to -80°C for twelve months from the date of receipt.
Alternate NamesCTD-binding SR-like protein RA4, KIAA1172, SCAF4, SFRS15, SR-related and CTD-associated factor 4, Splicing factor, arginine/serine-rich 15
Background

SR-related and CTD-associated factor 4 is a ~125 kDa protein. Anti-terminator protein required to prevent early mRNA termination during transcription. Together with SCAF8, acts by suppressing the use of early, alternative poly(A) sites, thereby preventing the accumulation of non-functional truncated proteins. Mechanistically, associates with the phosphorylated C-terminal heptapeptide repeat domain (CTD) of the largest RNA polymerase II subunit (POLR2A), and subsequently binds nascent RNA upstream of early polyadenylation sites to prevent premature mRNA transcript cleavage and polyadenylation. Independently of SCAF8, also acts as a suppressor of transcriptional readthrough.

1. Gregersen, LH. et al. (2019) Cell 177, 1797-1813.e18. PMID: 31104839
Note For research use only
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Formula
Mass (g) = Concentration (mol/L) × Volume (L) × MW (g/mol)
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Formula
C₁ × V₁ = C₂ × V₂
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Working Solution
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