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Human PFDN4 / PFD4 Protein (His Tag)

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Human PFDN4 Protein Product Information
Synonym:PFDN4, PFD4
Protein Construction:A DNA sequence encoding the mature form of human PFDN4 (Q9NQP4 ) (Met1-Ser134) was expressed with a polyhistide tag at the N-terminus.
Expressed Host:E. coli
Shipping:In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.
Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Human PFDN4 Protein QC Testing
Purity:> 80 % as determined by SDS-PAGE
Endotoxin:Please contact us for more information.
Stability:Samples are stable for up to twelve months from date of receipt at -70℃
Predicted N Terminal:His
Molecule Mass:The recombinant human PFDN4 consists of 149 amino acids and predicts a molecular mass of 17.2 KDa. It migrates as an approximately 18 KDa band in SDS-PAGE under reducing conditions.
Formulation:Lyophilized from sterile PBS, 5% Glycerol, pH 7.4.
1. Normally 5 % - 8 % trehalose and mannitol are added as protectants before lyophilization. Specific concentrations are included in the hardcopy of COA.
2. Please contact us for any concerns or special requirements.
Human PFDN4 Protein Usage Guide
Storage:Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Reconstitution:A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Human PFDN4 Protein SDS-PAGE
Human PFDN4 / PFD4 Protein (His Tag) SDS-PAGE
Other PFDN4 Recombinant Protein Products
PFDN4 / PFD4 Background

PFDN4 is a member of the prefoldin beta subunit family. It is one of six subunits of prefoldin, a molecular chaperone complex that binds and stabilizes newly synthesized polypeptides, thereby allowing them to fold correctly. The complex, consisting of two alpha and four beta subunits, forms a double beta barrel assembly with six protruding coiled-coils. PFDN4 binds specifically to cytosolic chaperonin (c-CPN) and transfers target proteins to it. PFDN4 also binds to nascent polypeptide chain and promotes folding in an environment in which there are many competing pathways for nonnative proteins.

Human PFDN4 / PFD4 References
  • Iijima M, et al. (1996) Cloning of cDNA with possible transcription factor activity at the G1-S phase transition in human fibroblast cell lines. Acta Med Okayama. 50(2):73-7.
  • Hartl FU, et al. (2002) Molecular chaperones in the cytosol: from nascent chain to folded protein. Science. 295(5561):1852-8.
  • Vainberg I, et al. (1998) Prefoldin, a chaperone that delivers unfolded proteins to cytosolic chaperonin. Cell. 93(5):863-73.
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    Catalog: 14144-H07E-100
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