SMYD2 cellular assay

Background SMYD2 is protein-lysine N-methyltransferase that methylates both histones and non-histone proteins, including p53. It monomethylates K370 of p53 leading to decreased DNA-binding and consequently the lower transcriptional regulation activity of p53 (PIMID:17108971). Assay validation Based on the findings (PIMID:17108971), we developed SMYD2 cellular assay in which exogenous FLAG-tagged p53 is methylated by exogenous V5-tagged Read More …

GID4 (human) cellular assay

Background GID4 is the substrate-recognition subunit of the CTLH E3 ubiquitin-protein ligase complex which has been shown to possess E3-ligase enzymatic activity (PIMID:31885576). GID4 was shown to bind proteins and peptides with a Pro/N-degron consisting of an unmodified N-terminal Pro and has the highest affinity for the peptide Pro-Gly-Leu-Trp (PIMID:29632410). In yeast Gid4 specifically targets Read More …

PRMT3 cellular assay

Background PRMT3 is type I protein arginine methyltransferase which mono- and asymmetrically dimethylates proteins, mainly in glycine and arginine-rich motifs (Fig.1, PIMID: 15175657). Fig.1. Mammalian PRMTs. There are 9 members and 3 types of the PRMT family. Type I, II and III PRMTs catalyze the formation of monomethyl arginines (Rme1). Type I PRMTs catalyze asymmetric arginine Read More …

PRMT6 cellular assay

Background PRMT6 is type I protein arginine methyltransferase which mono- and asymmetrically dimethylates histone and nonhistone proteins, mainly in glycine and arginine rich motifs (Fig.1). PRMT6 shows predominant nuclear localization and is implicated in the regulation of nuclear processes such as DNA repair and gene expression (PIMID: 11724789, 18079182).  Fig.1. Mammalian PRMTs. There are 9 Read More …

PRMT4 (CARM1) cellular assay

Background PRMT4 (CARM1) is type I protein arginine methyltransferase which mono- or asymmetrically dimethylates proteins (Fig.1) within proline-methionine rich motives, that are involved in transcription, splicing and RNA processing such as H3R17, EP300, PABP1, CA150, BAF155, MED12 (PIMID:19150423). Fig.1. Mammalian PRMTs. There are 9 members and 3 types of the PRMT family. Type I, II Read More …

PRMT5 cellular assay

Background PRMT5 in complex with the WD-repeat protein MEP50 is the major type II protein arginine methyltransferase responsible for mono- and symmetric dimethylation of arginine in a great variety of proteins (Fig.1). It plays a critical role in diverse cellular processes such as genome organization, transcription, translation, differentiation, cell cycle, DNA repair,  RNA processing, and Read More …

MYST1 (KAT8, MOF) and histone H4 cellular assay

Background The mammalian MYST1 is a member of the MYST family of histone acetyltransferases and is the primary enzyme that catalyzes the acetylation of histone H4 on lysine 16 (H4K16). Acetylation of K16 is a prevalent mark associated with chromatin decondensation. MYST1 has been shown to play an essential role in embryonic formation and development, Read More …

PRMT1 cellular assay

Background PRMT1 is the type I protein arginine methyltransferase (Fig.1) which mono- and asymmetrically dimethylates histone and nonhistone proteins, mainly in glycine and arginine-rich motifs and is involved in various cellular processes such as transcription, RNA processing, DNA repair, cell cycle or signal transduction (PMID:26612103). It is responsible for depositing over 90% of the total Read More …

Expansion of UBTR012574 Chemical Series Pt. II

Structure Image Smiles Mol. Weight Cc1cc(C(=O)NCC(=O)O)ccc1S(=O)(=O)N1CCC(N2CCCC2)CC1 409.5 In a previous post, I showed the expansion of UBTR012574 chemical series from commercial sources- Enamine’s REAL database and Scifinder to shed some insight into the structural activity relationship (SAR) (Figure 1). Figure 1. UBTR012574 chemical series UBTR020988a which has an amide resulted in weaker potency for USP5 Read More …

HDAC6 ubiquitin binding domain and ubiquitin/ISG15 interaction cell assay – NanoBRET

Hi, I would like to share with you the details for cellular assay detecting interaction between histone deacetylase HDAC6 and ubiquitin, which is a unique property within the histone deacetylase family. HDAC6 is a member of the histone deacetylase family which deacetylate lysine residues of histone and non-histone proteins. It plays an important role in Read More …