Retinoblastoma-binding protein 5 is a protein that in humans is encoded by the RBBP5 gene. The protein encoded by this gene is a ubiquitously expressed nuclear protein and belongs to a highly conserved subfamily of WD-repeat proteins. It is found among several proteins that bind directly to retinoblastoma protein, which regulates cell proliferation. The encoded protein interacts preferentially with the underphosphorylated retinoblastoma protein via the E1A-binding pocket B.
Background References
1. Xie H et al. Long non‑coding RNA AC245100.4 promotes prostate cancer tumorigenesis via the microRNA‑145‑5p/RBBP5 axis. Oncol Rep. 2021 Feb
2. Ali A et al. Diverse roles of WDR5-RbBP5-ASH2L-DPY30 (WRAD) complex in the functions of the SET1 histone methyltransferase family. J Biosci. 2017 Mar
Western blot analysis of RbBP5 on different lysates with Rabbit anti-RbBP5 antibody (HA721273) at 1/1,000 dilution.
Lane 1: SW480 cell lysate Lane 2: A431 cell lysate Lane 3: C2C12 cell lysate Lane 4: 293 cell lysate Lane 5: MCF-7 cell lysate Lane 6: NIH/3T3 cell lysate Lane 7: K562 cell lysate Lane 8: N2A cell lysate Lane 9: PC-12 cell lysate Lane 10: RAW264.7 cell lysate
Lysates/proteins at 25 µg/Lane.
Predicted band size: 59 kDa Observed band size: 59 kDa
Exposure time: 3 minutes;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA721273) at 1/1,000 dilution was used in 5% NFDM/TBST at room temperature for 2 hours. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1:300,000 dilution was used for 1 hour at room temperature.
☑ Knockdown (KD)
Western blot analysis of RbBP5 on different lysates with Rabbit anti-RbBP5 antibody (HA721273) at 1/1,000 dilution.
Lane 1: NIH-3T3-si NT cell lysate Lane 2: NIH-3T3-si RbBP5 cell lysate
Lysates/proteins at 10 µg/Lane.
Predicted band size: 59 kDa Observed band size: 59 kDa
Exposure time: 4 minutes;
4-20% SDS-PAGE gel.
HA721273 was shown to specifically react with RbBP5 in NIH-3T3-si NT cells. Weakened band was observed when NIH-3T3-si RbBP5 sample was tested. NIH-3T3-si NT and NIH-3T3-si RbBP5 samples were subjected to SDS-PAGE. Proteins were transferred to a PVDF membrane and blocked with 5% NFDM in TBST for 1 hour at room temperature. The primary antibody (HA721273, 1/1,000) and Loading control antibody (Rabbit anti-GAPDH, ET1601-4, 1/10,000) were used in 5% BSA at room temperature for 2 hours. Goat Anti-rabbit IgG-HRP Secondary Antibody (HA1001) at 1:300,000 dilution was used for 1 hour at room temperature.
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