Structural Genomics @CNAG · CRG


The Nucleus

The three-dimensional organization of the genome plays important, yet poorly understood roles in gene regulation. First, gene expression involves formation of chromatin loops driven by physical interactions between promoters and distal regulatory elements. Second, active and inactive segments of the genome appear spatially separated from each other, which may contribute to their coordinated expression and silencing, respectively. Finally, formation of complex higher order chromosome structures plays critical roles in chromosome condensation and segregation during mitosis and meiosis. Thus, chromosomes assume multiple distinct conformations in relation to the expression status of resident genes, and undergo dramatic alterations in higher-order structure through the cell cycle.

Detailed insights into chromosome conformation will greatly contribute to a more complete characterization of genome regulation. The spatial organization of chromosomes is reflected in, and driven by, cis- and trans interactions between genomic elements. For instance, enhancers directly touch target genes resulting in the formation of intra- and inter-chromosomal loops. We have recently developed a hybrid method (computational and experimental) based on the hypothesis that the spatial conformation of chromosomes can be determined by using comprehensive in vivo chromatin interaction data sets and microscopy images. We apply and use those technologies together with our software to determine the higher-order chromatin folding of genomic domains and whole genomes.

Selected articles

Farabella, I.,  Di Stefano, M.,  Soler-Vila, P.,  Marti-Marimon, M. and Marti-Renom, M.A.
"Three-dimensional genome organization via triplex forming RNAs"
Nature Structural and Molecular Biology (2021) 28(11) 945-954  
  
Nguyen, H.Q.,  Chattoraj, S.,  Castillo, D.,  Nguyen, S.C.,  Nir, G.,  Martins, N.M.C.,  Reginato, P.R.,  Hannan, M.,  Church, G.M.,  Daugharthy, E.R.,  Marti-Renom, M.A. and Wu, C.T.
"3D mapping and accelerated super-resolution imaging of the human genome using in situ sequencing"
Nature Methods (2020) 17 822–832  
  
Di Stefano, M.,  Stadhouders, R.,  Farabella, I.,  Castillo, D.,  Serra, F.,  Graf, T. and Marti-Renom, M.A.
"Transcriptional activation during cell reprogramming correlates with the formation of 3D open chromatin hubs"
Nature Communications (2020) 11 2564  
  
Nir, G.,  Farabella, I.,  Pérez Estrada, C.,   Ebeling, C.G.,  Beliveau, B.J.,  Sasaki, H.M.,  Lee, S.H.,  Nguyen, S.C.,  McCole, R.B.,  Chattoraj, S.,  Erceg, J.,  Abed, J.A.,  Martins, N.M.C.,   Nguyen, H.Q.,  Hannan, M.A.,  Russell, S.,  Durand, N.C.,  Rao, S.S.P.,  Kishi, J.Y.,  Soler-Vila, P.,  Di Pierro, M.,  Onuchic, J.N.,  Callahan, S.,  Schreiner, J.,  Stuckey, J.,  Yin, P.,  Lieberman Aiden, E.,  Marti-Renom, M.A. and Wu, C.T.
"Walking along chromosomes with super-resolution imaging, contact maps, and integrative modeling"
PLOS Genetics (2018) 14(12) e1007872  
  
Serra, F.,  Baů, D.,  Goodstadt, M.,  Castillo, D.,  Filion, F. and Marti-Renom, M.A.
"Automatic analysis and 3D-modelling of Hi-C data using TADbit reveals structural features of the fly chromatin colors"
PLOS Computational Biology (2017) 13(7) e1005665  
  

Grants

International. NIH-NHGRI CEGS Program 2020. 2020-2025 [RM1HG011016].
Center for Genome Imaging (CGI).
Spain. MCI-AEI. Plan Nacional. 2021-2023 [PID2020-115696RB-I00].
Tissue Aware GWAS to study genetic cancer predisposition (TAGWAS).
Catalonia. La Marató de TV3. Grants 2019. 2020-2022 [710/C/2021].
An omnigenic view of genetic susceptibility to severe COVID19.
International. European Commission. H2020-ETN. 2019-2023 [8133278].
ChromDesign.
Catalonia. AGAUR. Suport a Grups de Recerca. 2018-2020 [SGR-468].
Structural Genomics.
Spain. MINECO. Plan Nacional. 2018-2021 [BFU2017-85926-P].
Structural analysis of genomes and genomic domains.
International. ERC. Synergy Grant. 2014-2020 [ERC-2013-SyG/609989].
Dynamics of human genome architecture in stable and transient gene expression changes.
Catalonia. La Marató de TV3. Grants 2016. 2017-2020 [320/C/2016].
Modeling three-dimensional chromosomal structure in beta cells to identify genetic mechanisms underlying type 2 diabetes.
International. European Commission. H2020 e-Infra. 2015-2018 [676556].
Multi-Scale Complex Genomics.
Spain. MINECO. Plan Nacional. 2014-2017 [BFU2013-47736].
Determining the three-dimensional structure of genomes and genomic domains.
International. HFSP. Grant program. 2012-2015 [RGP0044/2011].
Conformational changes of chromosomes during the cell cycle.
c/ Baldiri Reixac, 4. PCB - Tower I, 10th floor, Barcelona 08028, Spain :: Tel. +34 934 033 743 :: Fax. +34 934 037 279
2022 © SGG :: 28977 visitors :: last modified on January 8, 2022