Results 51 to 60 of about 16,026 (192)

A Novel Cytidine Deaminase Affects Antibody Diversity [PDF]

Cell, 2000
It has not been determined whether AID normally acts as a DNA or RNA deaminase. In vitro, deamination of monomeric deoxycytidine was efficient (Muramatsu et al. 1999xMuramatsu, M, Sankaranand, V, Anant, S, Sugai, M, Kinoshita, K, Davidson, N, and Honjo, T. J. Biol. Chem.
Longacre, Angelika, Storb, Ursula
openaire   +2 more sources

The Myeloma Risk Variant of TNFRSF13B Shows Reduced NF‐κB Signalling Activity in HEK293 Cells

European Journal of Haematology, EarlyView.
ABSTRACT A single nucleotide variant rs34562254 in TNFRSF13B, which encodes TACI (transmembrane activator and CAML interactor), is associated with an increased risk of myeloma and MGUS. This variant encodes a proline to leucine substitution at residue 251 in the long isoform (P251L) and residue 205 in the short isoform (P205L) of TACI.
Richard Muyan Chen, Jackie L. Ludgate, Robert J. Weeks, Heather E. Cunliffe, Ali G. Dohan, Ian M. Morison   +5 more
wiley   +1 more source

Biological function of activation-induced cytidine deaminase (AID)

Biomedical Journal, 2014
Activation-induced Cytidine Deaminase (AID) is an essential regulator of B cell diversification, but its full range of action has until recently been an enigma. Based on homology, it was originally proposed to be an RNA-editing enzyme, but so far, no RNA
Ritu Kumar, Lauren J DiMenna, Jayanta Chaudhuri, Todd Evans   +3 more
doaj   +1 more source

Exploring ABOBEC3A and APOBEC3B substrate specificity and their role in HPV positive head and neck cancer

iScience, 2022
Summary: APOBEC3 family members are cytidine deaminases catalyzing conversion of cytidine to uracil. Many studies have established a link between APOBEC3 expression and cancer development and progression, especially APOBEC3A (A3A) and APOBEC3B (A3B ...
Christina Papini, Zechen Wang, Shalley N. Kudalkar, Travis Parke Schrank, Su Tang, Tomoaki Sasaki, Cory Wu, Brandon Tejada, Samantha J. Ziegler, Yong Xiong, Natalia Issaeva, Wendell G. Yarbrough, Karen S. Anderson   +12 more
doaj   +1 more source

Human APOBEC3G suppresses homologous recombination and LIG4‐independent end joining in DNA double‐strand break repair

The FEBS Journal, EarlyView.
Chromosomal DNA double‐strand breaks (DSBs) are repaired by homologous recombination and nonhomologous end joining (NHEJ). Recent work has additionally established theta‐mediated end‐joining (TMEJ) as a mechanism for DSB joining. Cells lacking NHEJ and TMEJ can repair DSBs in a homology‐dependent manner.
Shinta Saito, Miori Murayama, Usaki Arai, Sekifumi Akatsu, Ami Yamamoto, Misaki Kadoguchi, Noritaka Adachi   +6 more
wiley   +1 more source

Gene Editing for Haemophilia—The Next Frontier

Haemophilia, EarlyView.
ABSTRACT The recently approved haemophilia A and B gene therapies via adeno‐associated virus (AAV) showed a promising therapeutic response after a single injection, but there are still limitations, including the potential loss of transgene expression and restriction in adults.
Mirko Pinotti, Gregory A. Newby, Sundar Selvaraj, Steven W. Pipe   +3 more
wiley   +1 more source

Coupling of both a transactivation module and a double‐stranded DNA‐binding domain boosts Cas12i3 variant‐based cytosine and adenine editing in plants

Journal of Integrative Plant Biology, EarlyView.
Fusions of a transactivation module and a double‐stranded DNA‐binding domain produced effective Cas12i3 variant‐based cytosine and adenine base editors, with improved C‐to‐T and A‐to‐G base editing efficiency and expanded editing window. Generated herbicide‐resistant rice germplasm by using these base editors demonstrates their potential for precise ...
Chen Zhang, Jingying Li, Yucai Li, Lei Yan, Christina Seok Yien Yong, Shaoya Li, Yubing He, Lanqin Xia   +7 more
wiley   +1 more source

Lineage tracing using a Cas9-deaminase barcoding system targeting endogenous L1 elements

Nature Communications, 2019
Lineage tracing has provided new insights into cell fate but defining cellular diversity remains a challenge. Here the authors target endogenous repeat regions in mammalian cells with cytidine deaminase fused to nCas9 to create genetic barcodes for fine ...
Byungjin Hwang, Wookjae Lee, Soo-Young Yum, Yujin Jeon, Namjin Cho, Goo Jang, Duhee Bang   +6 more
doaj   +1 more source

Enhancing CRISPR‐Cas12a base editing in plants with LbCas12a variants and introns

Journal of Integrative Plant Biology, EarlyView.
Intron optimization of LbCas12a‐RRV improves cytosine and adenine base editing efficiency in plants, supports multiplexed and double‐strand break‐free genome modification, and expands precise genome engineering tools for crop breeding and plant functional research. ABSTRACT Cytosine base editors (CBEs) and adenine base editors (ABEs) are powerful tools
Yanhao Cheng, Gen Li, Man Zhou, Rushil Mandlik, Doris Wang, Yiping Qi   +5 more
wiley   +1 more source

Induction of homologous recombination between sequence repeats by the activation induced cytidine deaminase (AID) protein

eLife, 2014
The activation induced cytidine deaminase (AID) protein is known to initiate somatic hypermutation, gene conversion or switch recombination by cytidine deamination within the immunoglobulin loci.
Jean-Marie Buerstedde, Noel Lowndes, David G Schatz   +2 more
doaj   +1 more source