Methylation of lysine 4 (K4) within histone H3 has been linked to active transcription and is removed by LSD1 and the JmjC domain-containing proteins by amino-oxidation or hydroxylation, respectively. Here, we describe the deamination catalyzed by Lysyl oxidase-like 2 protein (LOXL2) as an unconventional chemical mechanism for H3K4 modification. Infrared spectroscopy and mass spectrometry analyses demonstrated that recombinant LOXL2 specifically deaminates trimethylated H3K4. Moreover, LOXL2 activity is linked with the transcriptional control of CDH1 gene by regulating H3K4me3 deamination. These results reveal another H3 modification and provide a different mechanism for H3K4 modification.
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http://dx.doi.org/10.1016/j.molcel.2012.03.002 | DOI Listing |
Alzheimer's disease (AD) is the most prevalent neurodegenerative dementia, marked by progressive cognitive decline and memory impairment. Despite advances in therapeutic research, single-target-directed treatments often fall short in addressing the complex, multifactorial nature of AD. This arises from various pathological features, including amyloid-β (Aβ) aggregate deposition, metal ion dysregulation, oxidative stress, impaired neurotransmission, neuroinflammation, mitochondrial dysfunction, and neuronal cell death.
View Article and Find Full Text PDFRecent Pat Anticancer Drug Discov
January 2025
Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou, 515041, PR China.
Background: Lysyl oxidase-like 2 (LOXL2) is a metalloenzyme that catalyzes oxidative deamination ε-amino group of lysine. It has been found that LOXL2 is a promotor for the metastasis and invasion in kinds of tumors. Previous studies show that disulfide bonds are important components in LOXL2, and their bioactivity can be regulated by those bonds.
View Article and Find Full Text PDFOphthalmic Genet
January 2025
School of Optometry, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana.
Purpose: This study sought to analyze the effect of allele mutations and gene functions specific to glaucoma susceptibility among Africans.
Methods: Potentially relevant studies were retrieved from major bibliographic databases (PubMed, Scopus, and Web of Science). Data were extracted and study-specific estimates were meta-analyzed using various models to obtain pooled results.
Am J Physiol Heart Circ Physiol
December 2024
B. Timothy Baxter, MD: University of Nebraska Medical Center, 68198 Nebraska Medicine, Omaha, Ne 68198-2500 (402-639-0144).
Abdominal aortic aneurysm (AAA) is a common, progressive and potentially fatal dilation of the most distal aortic segment. Multiple studies with longitudinal follow-up of AAA have identified markedly slower progression among patients affected with diabetes. Understanding the molecular pathway responsible for the growth inhibition could have implications for therapy in nondiabetic AAA patients.
View Article and Find Full Text PDFEcotoxicol Environ Saf
December 2024
Department of Occupational Medical and Environmental Health, Key Laboratory of Modern Toxicology of Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Department of Public Health, Kangda College of Nanjing Medical University, Lianyungang, 320700, China. Electronic address:
Silicosis is a disease caused by prolonged exposure to silica dust. It is the most typical, rapidly progressive, and fatal form of pneumoconiosis. Currently, there is no specific medication available for the treatment of silicosis.
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