Fig. 1From: Calmodulin-like protein 3 is an estrogen receptor alpha coregulator for gene expression and drug response in a SNP, estrogen, and SERM-dependent fashionCALML3 as a potential ERĪ± coregulator binds to the ZNF423 rs9940645 SNP. a Schematic representation of the genomic region surrounding the rs9940645 SNP (in intron 1) in the ZNF423 gene. The SNP is in intron 2 of ZNF423 and 240Ā bp away from the closest ERE. b EMSA to identify the candidate proteins that bind differentially to WT and variant SNPs sequences in LCLs treated with E2āĀ±ā4-OH-TAM. 1ā3 bands indicating specific DNAāprotein binding. c Further validation of CALML3 as a candidate protein by ChIP-qPCR using ERĪ± antibody after the knockdown of CALML3 in WT and variant LCLs treated with E2āĀ±ā4-OH-TAM. Primers used for amplification are indicated in (a) with arrows, so the amplicons included both the SNP and EREs. YWHAZ as a nonspecific SNP-binding protein identified by MS was also included as a negative control. Enrichment of DNA fragments shown as the mean (Ā± SEM) of three independent experiments. *pā<ā0.05, **pā<ā0.01 by two-tailed Studentās t test. 4-OH-TAM 4-hydroxytamoxifene, E2 estradiol, ERĪ± estrogen receptor alpha, ERE estrogen response element, ns not significant, WT wild typeBack to article page