RNA processing mechanisms contribute to genome organization and stability in B cells

E Miglierina, D Ordanoska, S Le Noir, B Laffleur - Oncogene, 2024 - nature.com
RNA processing includes post-transcriptional mechanisms controlling RNA quality and
quantity to ensure cellular homeostasis. Noncoding (nc) RNAs that are regulated by these …

Pushing the TAD boundary: Decoding insulator codes of clustered CTCF sites in 3D genomes

H Huang, Q Wu - BioEssays, 2024 - Wiley Online Library
Topologically associating domain (TAD) boundaries are the flanking edges of TADs, also
known as insulated neighborhoods, within the 3D structure of genomes. A prominent feature …

ATM and 53BP1 regulate alternative end joining–mediated V (D) J recombination

J Wang, CA Sadeghi, LV Le, M Le Bouteiller… - Science …, 2024 - science.org
G0-G1 phase alternative end joining (A-EJ) is a recently defined mutagenic pathway
characterized by resected deletion and translocation joints that are predominantly direct and …

Molecular basis for differential Igk versus Igh V(D)J joining mechanisms

Y Zhang, X Li, Z Ba, J Lou, KE Gaertner, T Zhu, X Lin… - Nature, 2024 - nature.com
In developing B cells, V (D) J recombination assembles exons encoding IgH and Igκ
variable regions from hundreds of gene segments clustered across Igh and Igk loci. V, D and …

Locus folding mechanisms determine modes of antigen receptor gene assembly

BM Allyn, KE Hayer, C Oyeniran, V Nganga… - Journal of Experimental …, 2024 - rupress.org
The dynamic folding of genomes regulates numerous biological processes, including
antigen receptor (AgR) gene assembly. We show that, unlike other AgR loci, homotypic …

Addressing technical pitfalls in pursuit of molecular factors that mediate immunoglobulin gene regulation

E Engelbrecht, OL Rodriguez… - The Journal of …, 2024 - journals.aai.org
The expressed Ab repertoire is a critical determinant of immune-related phenotypes. Ab-
encoding transcripts are distinct from other expressed genes because they are transcribed …

Three-way contact analysis characterizes the higher order organization of the Tcra locus

R Dai, Y Zhu, Z Li, L Qin, N Liu, S Liao… - Nucleic Acids …, 2023 - academic.oup.com
The generation of highly diverse antigen receptors in T and B lymphocytes relies on V (D) J
recombination. The enhancer Eα has been implicated in regulating the accessibility of Vα …

The endogenous Mtv8 locus and the immunoglobulin repertoire

HA Beilinson, SA Erickson, T Golovkina - Frontiers in Immunology, 2024 - frontiersin.org
The vast diversity of mammalian adaptive antigen receptors allows for robust and efficient
immune responses against a wide number of pathogens. The antigen receptor repertoire is …

Enhancers of the PAIR4 regulatory module promote distal VH gene recombination at the Igh locus

L Hill, M Jaritz, H Tagoh, K Schindler… - The EMBO …, 2023 - embopress.org
While extended loop extrusion across the entire Igh locus controls VH‐DJH recombination,
local regulatory sequences, such as the PAIR elements, may also activate VH gene …

Enhancers within the Ig V Gene Region Orchestrate Chromatin Topology and Regulate V Gene Rearrangement Frequency to Shape the B Cell Receptor Repertoire …

EM Barajas-Mora, AJ Feeney - The Journal of Immunology, 2023 - journals.aai.org
Effective Ab-mediated responses depend on a highly diverse Ab repertoire with the ability to
bind a wide range of epitopes in disease-causing agents. The generation of this repertoire …