DDX39B Protein (AA 2-428) (His tag)

Catalog No. ABIN3092244

Product Details

Target: DDX39B (DEAD (Asp-Glu-Ala-Asp) Box Polypeptide 39B (DDX39B))

Protein Type: Recombinant

Protein Characteristics: AA 2-428

Origin: Human

Source: Insect Cells

Purification tag / Conjugate: This DDX39B protein is labelled with His tag.

Application: ELISA, SDS-PAGE (SDS), Western Blotting (WB), Crystallization (Crys)

Sequence: AENDVDNELL DYEDDEVETA AGGDGAEAPA KKDVKGSYVS IHSSGFRDFL LKPELLRAIV DCGFEHPSEV QHECIPQAIL GMDVLCQAKS GMGKTAVFVL ATLQQLEPVT GQVSVLVMCH TRELAFQISK EYERFSKYMP NVKVAVFFGG LSIKKDEEVL KKNCPHIVVG TPGRILALAR NKSLNLKHIK HFILDECDKM LEQLDMRRDV QEIFRMTPHE KQVMMFSATL SKEIRPVCRK FMQDPMEIFV DDETKLTLHG LQQYYVKLKD NEKNRKLFDL LDVLEFNQVV IFVKSVQRCI ALAQLLVEQN FPAIAIHRGM PQEERLSRYQ QFKDFQRRIL VATNLFGRGM DIERVNIAFN YDMPEDSDTY LHRVARAGRF GTKGLAITFV SDENDAKILN DVQDRFEVNI SELPDEIDIS SYIEQTR
Sequence without tag. Tag location is at the discretion of the manufacturer. If you have a special request, please contact us.

Characteristics:

• Made in Germany - from design to production - by highly experienced protein experts.
• Human DDX39B Protein (raised in Insect Cells) purified by multi-step, protein-specific process to ensure crystallization grade.
• 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.

In the unlikely event that the protein cannot be expressed or purified we do not charge anything (other companies might charge you for any performed steps in the expression process for custom-made proteins, e.g. fees might apply for the expression plasmid, the first expression experiments or purification optimization).

When you order this made-to-order protein you will only pay upon receival of the correctly folded protein. With no financial risk on your end you can rest assured that our experienced protein experts will do everything to make sure that you receive the protein you ordered.

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.

The concentration of the protein is calculated using its specific absorption coefficient. We use the Expasy's protparam tool to determine the absorption coefficient of each protein.

Purification: Two step purification of proteins expressed in baculovirus infected SF9 insect cells:

1. In a first purification step, the protein is purified from the cleared cell lysate using three different His-tag capture materials: high yield, EDTA resistant, or DTT resistant. Eluate fractions are analyzed by SDS-PAGE.
2. 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.

Purity: >95 % as determined by SDS PAGE, Size Exclusion Chromatography and Western Blot.

Sterility: 0.22 μm filtered

Endotoxin Level: Protein is endotoxin free.

Grade: Crystallography grade

Application Details

Application Notes: 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 gurantee though.

Comment:

In cases in which it is highly likely that the recombinant protein with the default tag will be insoluble our protein lab may suggest a higher molecular weight tag (e.g. GST-tag) instead to increase solubility. We will discuss all possible options with you in detail to assure that you receive your protein of interest.

Restrictions: For Research Use only

Handling

Format: Liquid

Buffer: 100 mM NaCL, 20 mM Hepes, 10% glycerol. pH value is at the discretion of the manufacturer.

Handling Advice: Avoid repeated freeze-thaw cycles.

Storage: -80 °C

Storage Comment: Store at -80°C.

Expiry Date: Unlimited (if stored properly)

Target Details

Target: DDX39B (DEAD (Asp-Glu-Ala-Asp) Box Polypeptide 39B (DDX39B))

Alternative Name: DDX39B (DDX39B Products)

Synonyms: BAT1 Protein, D6S81E Protein, UAP56 Protein, Bat1 Protein, Bat1a Protein, p47 Protein, 0610030D10Rik Protein, AI428441 Protein, Bat-1 Protein, D17H6S81E Protein, D17H6S81E-1 Protein, D6S81Eh Protein, bat1 Protein, zgc:63773 Protein, DExD-box helicase 39B Protein, DEAD (Asp-Glu-Ala-Asp) box polypeptide 39B Protein, DDX39B Protein, Ddx39b Protein, ddx39b Protein

Background: Involved in nuclear export of spliced and unspliced mRNA. Assembling component of the TREX complex which is thought to couple mRNA transcription, processing and nuclear export, and specifically associates with spliced mRNA and not with unspliced pre-mRNA. TREX is recruited to spliced mRNAs by a transcription-independent mechanism, binds to mRNA upstream of the exon-junction complex (EJC) and is recruited in a splicing- and cap-dependent manner to a region near the 5' end of the mRNA where it functions in mRNA export to the cytoplasm via the TAP/NFX1 pathway. May undergo several rounds of ATP hydrolysis during assembly of TREX to drive subsequent loading of components such as ALYREF/THOC and CHTOP onto mRNA. The TREX complex is essential for the export of Kaposi's sarcoma-associated herpesvirus (KSHV) intronless mRNAs and infectious virus production. Also associates with pre-mRNA independent of ALYREF/THOC4 and the THO complex. Involved in the nuclear export of intronless mRNA, the ATP-bound form is proposed to recruit export adapter ALYREF/THOC4 to intronless mRNA, its ATPase activity is cooperatively stimulated by RNA and ALYREF/THOC4 and ATP hydrolysis is thought to trigger the dissociation from RNA to allow the association of ALYREF/THOC4 and the NXF1-NXT1 heterodimer. Involved in transcription elongation and genome stability., Splice factor that is required for the first ATP-dependent step in spliceosome assembly and for the interaction of U2 snRNP with the branchpoint. Has both RNA-stimulated ATP binding/hydrolysis activity and ATP-dependent RNA unwinding activity. Even with the stimulation of RNA, the ATPase activity is weak. Can only hydrolyze ATP but not other NTPs. The RNA stimulation of ATPase activity does not have a strong preference for the sequence and length of the RNA. However, ssRNA stimulates the ATPase activity much more strongly than dsRNA. Can unwind 5' or 3' overhangs or blunt end RNA duplexes in vitro. The ATPase and helicase activities are not influenced by U2AF2, the effect of ALYREF/THOC4 is reported conflictingly with [PubMed:23299939] reporting a stimulatory effect.

Molecular Weight: 49.8 kDa Including tag.

UniProt: Q13838

Pathways: Ribonucleoprotein Complex Subunit Organization