MKGC: a curated molecular knowledgebase for gastric cancer


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Gene Summary for RB1 Gene

Official Symbol RB1 Gene Type protein-coding
Full Name RB transcriptional corepressor 1 Entrez 5925
Ensembl ID ENSG00000139687 HGNC 9884
Aliases OSRC, PPP1R130, RB, p105-Rb, p110-RB1, pRb, pp110 Chromosome Location Chromosome 13, NC_000013.11 (48303751..48481890)
Expression Ubiquitous expression in lymph node (RPKM 18.0), thyroid (RPKM 16.4) and 25 other tissues
Summary The protein encoded by this gene is a negative regulator of the cell cycle and was the first tumor suppressor gene found. The encoded protein also stabilizes constitutive heterochromatin to maintain the overall chromatin structure. The active, hypophosphorylated form of the protein binds transcription factor E2F1. Defects in this gene are a cause of childhood cancer retinoblastoma (RB), bladder cancer, and osteogenic sarcoma. [provided by RefSeq, Jul 2008]

Paper for RB1 Gene

PMID Author Year ID in Paper
Conclusion
15818729 Xiu-Sheng He 2005 Rb The loss protein expression of p16 and Rb genes is related to GC. The loss expression of P16 protein is related to the histopathologic subtypes and lymph node metastasis of GC. Expression of P16 and Rb proteins in GC is reversely correlated. The deletion but not mutation in exon 2 of p16 gene may be involved in GC.
14691913 Roger M Feakins 2003 pRb Rb pathway disturbances play an important role in gastric carcinogenesis. The poor prognosis of cancers with low pRb expression and the reduced pRb expression in lymph node metastases raise the possibility that Rb and related genes also influence progression.

Experiment for RB1 Gene

Sample Type Sample Number GC Sample Number nonGC Method Region Hpylori Normal vs. GC Early-stage vs. Advanced stage Biological Functions in GC Cells Result PMID
tissue 122 80 S-P China No Reports Down - - The positive rates of Rb protein expression respectively were 99% (79/80) in normal gastric mucosa, 80% (40/50) in dysplastic gastric mucosa, 60% (73/122) in GC. The positive rates of Rb protein expression in GC were significantly lower than that in normal gastric mucosa and dysplastic gastric mucosa (P<0.05). The positive rate of both P16 and Rb proteins was 16% (14/90), and the negative rate of both P16 and Rb proteins was 8% (7/90) in 90 GCs. The rate of positive P16 protein with negative Rb protein was 33% (30/90). The rate of negative P16 protein with positive Rb protein was 43% (39/90). There was reverse correlation between P16 and Rb expression in 90 GCs. 15818729
tissue 67 67 IHC U.K. No Reports - - - pRb expression was lower in lymph node metastases than in the corresponding primary tumors; low pRb expression may be a powerful independent negative prognostic factor. 14691913

Function for RB1 Gene

Functional Type AUC Overall Survival Disease-free Survival
prognosis - 0.0027 -

Interaction for RB1 Gene

Interaction Gene Method PMID
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