Dear colleagues worldwide welcome to a joint call of CHEMBIOINFO-07: Chem-Bioinformatics Congress, München, Germany-Chapel Hill, USA, 2021 (see this section) and EJBCE VIII Meeting of Young Researchers in Structural Computational Biology, Coimbra, Portugal, 2021 (see next section). CHEMBIONFO-EJBCE form an inter-university trans-Atlantic Chem-Bioinformatics, Computational Chemistry, and Computational Biology congress series. From the America's side the event is organized by professors of University of North Carolina (UNC Chape Hill), Chape Hill, NC, USA, and professors of North Carolina Central University (NCCU), Durham, NC, USA. From Europe's side the event is organized by professors and researchers of Helmholtz Zentrum München - German Research Center for Environmental Health (GmbH), Germany, The European Bioinformatics Institute (EMBL-EBI), Cambridge, United Kingdom, Center for Neuroscience and Cell Biology (CNC), University of Coimbra (UC), Coimbra, Portugal, the University of The Basque Country (UPV/EHU) and IKERBASQUE, Basque Foundation for Science, Bilbao, Basque Country, Spain. This congress is associated to the MOL2NET International Conference Series on Multidisciplinary Sciences. MOL2NET (From Molecules to Networks), International Conference on Multidisciplinary Sciences, ISSN: 2624-5078, MDPI SciForum, Basel, Switzerland.Topics of Interest. CHEMBIOINFO series aims to bring together leading academics, researchers and scholars to share their experiences on all aspects of computational programing, modeling, simulations, or scientific computing dedicated to Computational Chemistry, Chemoinformatics, Bioinformatics, Systems Biology, Biocomputing, etc. We focus on applications to Medicinal Chemistry, Drug Design & Discovery, Pharmaceutical Industry, Natural Products Research, Toxicology, Vaccine Design, Biotechnology, Personalized Medicine, Biomedical Engineering, etc. We welcome contributions involving the following topic:Computational Chemistry & Chemoinformatics: Quantum Chemistry, Functional Density Theory (DFT), Ab Initio Methods, Semi-Empirical Methods, Machine Learning (ML) Quantum Chemistry Potentials, Molecular Mechanics/Molecular Dynamics (MM/MD), Molecular Docking, etc. Bioinformatics and Systems Biology: Proteomics, Genomics, BLAST and sequence alignment, Meta-Genomics, Protein folding and Protein Structure prediction, RNA secondary structure prediction, Protein Interaction Networks (PINS), Gene Regulatory Networks (GRN), Metabolomics and Metabolic Networks, Synthetic Biology, Data Analysis, and related techniques.Computer Coding, Data Analysis, Artificial Intelligence, and Soft Computing. The congress also deals with the development or application of computer languages, computational programs, and/or algorithms for the study of chemical and biological process and/or inspired on biological processes. This include programing in Python/Biopython, Perl/Bioperl, etc. Development or application of Machine Learning (ML), Artificial Neural Networks (ANN), Deep Learning Networks (DLN), Bayesian Networks, Random Forest, Classification Trees, Genetic Algorithms (GA), Swarm Intelligence (SI), Ant Colony Algorithms, Artificial Imune Systems, etc. Bioethics and Biolaw: Last, not the least, the workshop deals with all the Legal, Regulatory, and Bioethics issues emerging from use of new experimental and ICTs in the previous areas such as Drug patenting, Genome patenting, Drug re-purposing patents, Chem-Bioinformatics Software and Models Copyrights, etc. GDPR and Personal data protection in Human Bioinformatics, etc.Modalities of Participation. The congress series may run both in person and/or online depending on year. Participation in all modalities is not mandatory. In online/person presentations may include workshops, seminars, meetings with face-to-face discussion at both universities and/or online publication of papers, videos, etc.