Results 51 to 60 of about 30,296 (276)
Structural features of antiviral DNA cytidine deaminases [PDF]
bchm, 2013 Abstract The APOBEC3 (A3) family of cytidine deaminases plays a vital role for innate defense against retroviruses. Lentiviruses such as HIV-1 evolved the Vif protein that triggers A3 protein degradation. There are seven A3 proteins, A3A-A3H, found in humans.
Vasudevan, Ananda Ayyappan Jaguva +5 more
openaire +3 more sources
Human placenta cytidine deaminase: a zinc metalloprotein [PDF]
IUBMB Life, 1997 AbstractCytidine deaminase, a tetrameric enzyme purified from human placenta, was shown to contain a single atom of tightly bound zinc per subunit by Inductively Coupled Plasma Optical Emission Spectrometry analysis. The metal appears to be involved in catalysis, as suggested by the inhibition exerted by 1,10‐phenanthroline and dipicolinic acid.
VINCENZETTI, Silvia +5 more
openaire +3 more sources
APOBEC3s: DNA‐editing human cytidine deaminases [PDF]
Protein Science, 2019 AbstractNucleic acid editing enzymes are essential components of the human immune system that lethally mutate viral pathogens and somatically mutate immunoglobulins. Among these enzymes are cytidine deaminases of the apolipoprotein B mRNA editing enzyme, catalytic polypeptide‐like (APOBEC) super family, each with unique target sequence specificity and ...
Tania V. Silvas, Celia A. Schiffer
openaire +3 more sources
Activation-Induced Cytidine Deaminase Does Not Impact Murine Meiotic Recombination [PDF]
, 2013 Activation-Induced Cytidine Deaminase (AID) was first described as the triggering enzyme of the B-cell-specific reactions that edit the immunoglobulin genes, namely somatic hypermutation, gene conversion and class switch recombination.
Barreto, V. M. +2 more
core +1 more source
Respiratory Organ‐on‐a‐Chip for Disease Modeling: From Architecture to Functional Integration
Advanced Healthcare Materials, EarlyView.Respiratory organ‐on‐a‐chip (ROC) models capture key mechanical and cellular cues of the human respiratory system, enabling quantitative dissection of disease mechanisms. This review links ROC architectures to disease modeling, functional integration, and commercialization, and proposes a decision framework that aligns model complexity with mechanistic
Jinzhuo Hu +4 more
wiley +1 more source
Unraveling the Molecular Mechanisms Underlying Spontaneous Multipolar Mitosis Through CIN‐seq
Advanced Science, EarlyView.Multipolar mitosis, a hallmark of chromosomal instability (CIN), drives tumor heterogeneity but is challenging to study in live cells. Using CIN‐seq, a single‐cell multiomics method, we profiled rare CIN events and identified mechanisms associated with viable multipolar mitosis, including PTEN attenuation, Rho GTPase‐driven cytokinesis failure, and ...
Pin‐Rui Su +10 more
wiley +1 more source
A putative antiviral role of plant cytidine deaminases [PDF]
F1000Research, 2014 Summary A mechanism of innate antiviral immunity operating against viruses infecting mammalian cells has been described during the last decade. Host cytidine deaminases (e.g., APOBEC3 proteins) edit viral genomes giving raise to hypermutated nonfunctional viruses; consequently, viral fitness is reduced through lethal ...
Susana Martín +3 more
openaire +6 more sources
MicroRNAs in B cell development and malignancy [PDF]
, 2012 MicroRNAs are small RNA molecules that regulate gene expression and play critical roles in B cell development and malignancy. miRNA expression is important globally, as B cell specific knockouts of Dicer show profound defects in B cell development; and ...
Fernando, Thilini R. +2 more
core +4 more sources
Advanced Science, EarlyView.ABSTRACT Base editors enable precise genome modification and have emerged as a promising therapeutic approach for correcting diseases caused by single‐nucleotide variants. While the current efficient version of adenine base editors (ABEs), such as ABE8e, exhibits exceptional efficiency for A‐to‐G conversions, their clinical translation is hindered by ...
Jiawei Yao +12 more
wiley +1 more source
Crystal structure of the catalytic domain of HIV-1 restriction factor APOBEC3G in complex with ssDNA
Nature Communications, 2018 APOBEC3G (A3G) is a single-stranded DNA (ssDNA) cytidine deaminase that restricts HIV-1. Here the authors provide molecular insights into A3G substrate recognition by determining the 1.86 Å resolution crystal structure of its catalytic domain bound to ...
Atanu Maiti +7 more
doaj +1 more source