R18 - CAS 211364-78-2

R18, a competitive inhibitor of 14-3-3 scaffolding proteins (KD ≈80 nM), blocks the ability of 14.3.3 to bind to target proteins such as Raf-1, Bad, ASK1 and exoenzyme S.

Peptide Inhibitors
Catalog number
CAS number
Molecular Formula
Molecular Weight
R18; R 18; R-18; L-Prolyl-L-histidyl-L-cysteinyl-L-valyl-L-prolyl-L-arginyl-L-a-aspartyl-L-leucyl-L-seryl-L-tryptophyl-L-leucyl-L-a-aspartyl-L-leucyl-L-a-glutamyl-L-alanyl-L-asparaginyl-L-methionyl-L-cysteinyl-L-leucyl-L-proline trifluoroacetate; PHCVPRDLSWLDLEANMCLP trifluoroacetate; Pro-His-Cys-Val-Pro-Arg-Asp-Leu-Ser-Trp-Leu-Asp-Leu-Glu-Ala-Asn-Met-Cys-Leu-Pro trifluoroacetate
White to Off-white Powder
1.50±0.1 g/cm3(Predicted)
Store at -20°C
Soluble in water
InChI Key
Canonical SMILES
1.Psychometric analysis of an eating behaviour questionnaire for an overweight and obese Chinese population in Singapore.
Chong MF1, Ayob MN2, Chong KJ3, Tai ES4, Khoo CM3, Leow MK5, Lee YS6, Tham KW7, Venkataraman K8, Meaney MJ9, Wee HL10, Khoo EY3. Appetite. 2016 Jun 1;101:119-24. doi: 10.1016/j.appet.2016.03.005. Epub 2016 Mar 2.
OBJECTIVES: Previous studies reveal that the Three-Factor Eating Questionnaire (TFEQ), which assesses eating behaviour, performs differently across population groups and cultures. We aimed to identify the factor structure that is most appropriate to capture eating behaviour in an overweight and obese Chinese population in Singapore.
2.Community Health Workers Versus Nurses as Counselors or Case Managers in a Self-Help Diabetes Management Program.
Kim KB1, Kim MT1, Lee HB1, Nguyen T1, Bone LR1, Levine D1. Am J Public Health. 2016 Mar 17:e1-e7. [Epub ahead of print]
OBJECTIVES: To confirm the effectiveness of community health workers' involvement as counselors or case managers in a self-help diabetes management program in 2009 to 2014.
3.Measuring insulin adherence among adults with type 2 diabetes.
Osborn CY1, Gonzalez JS2,3. J Behav Med. 2016 Apr 9. [Epub ahead of print]
Non-adherence to insulin is common and associated with suboptimal health. We adapted the Morisky Medication Adherence Scale to specify insulin adherence (MIAS) and compared it to the Adherence to Refills and Medication Scale for Diabetes (ARMS-D) and the Summary of Diabetes Self-Care Activities medications subscale (SDSCA-MS) and an insulin-specific (SDSCA-IS) version. A sample of 144 insulin-treated adults (58 % African American/Black, 34 % Caucasian/White, 8 % Other/Mixed race; 6.9 % Hispanic) completed these measures along with a HbA1C test. The internal consistency and factor structure of the MIAS were adequate; 59 % of participants forgot to take insulin and 46 % reported non-adherence. The MIAS was associated with the ARMS-D, SDSCA-MS, and SDSCA-IS (p < 0.001), and higher MIAS scores were marginally associated with better self-rated health (p = 0.057), but significantly associated with fewer emergency room visits (p = 0.001), and better HbA1C (p = 0.
4.Over-expression of miR-451a can enhance the sensitivity of breast cancer cells to tamoxifen by regulating 14-3-3ζ, estrogen receptor α, and autophagy.
Liu ZR1, Song Y2, Wan LH1, Zhang YY3, Zhou LM4. Life Sci. 2016 Mar 15;149:104-13. doi: 10.1016/j.lfs.2016.02.059. Epub 2016 Feb 17.
AIM: To investigate the effects and mechanisms of miR-451a in the tamoxifen (TAM) resistance of breast cancer cells.
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