Recombinant Human Retinoblastoma-Associated Protein Fragment, 137a.a. with His-tag
Product Specifications
Background
Rb encoded by the RB1 gene in humans, is expressed by retina and belongs to the etinoblastoma-associated protein family. The hole protein consists of 928 a.a. and the rHuRb fragment occupies sequence of 792-929 a.a.. Rb is a key regulator of entry into cell division that acts as a tumor suppressor. It has many functions, for example, promotes G0-G1 transition when phosphorylated by CDK3/cyclin-C, and acts as a transcription repressor of E2F1 target genes and so on. The rHuRb is the region that rich of modified residue like phosphothreonine and N6-acetyllysine.
Product Name Alternative
P105-Rb, pRb, pp110
Target
MASFPSSPLR IPGGNIYISP LKSPYKISEG LPTPTKMTPR SRILVSIGES FGTSEKFQKI NQMVCNSDRV LKRSAEGSNP PKPLKKLRFD IEGSDEADGS KHLPGESKFQ QKLAEMTSTR TRMQKQKMND SMDTSNKEEK HHHHHH
Purification
> 95 % by SDS-PAGE and HPLC analyses.
Endotoxin
Less than 1 EU/ugof rHuRb137, His as determined by LAL method.
Storage Conditions
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- 12 months from date of receipt, -20 to -70 °C as supplied.- 1 month, 2 to 8 °C under sterile conditions after reconstitution.- 3 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculated Molecular Weight
Approximately 16.5 kDa, a single non-glycosylated polypeptide chain containing 146 amino acids.
Formulation
Lyophilized from a 0.2 μm filtered concentrated solution in PBS, pH 7.4.
Host or Source
Escherichia coli
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