We all know a few: flowcharts and their symbols, standard electronic schematics, Feynman diagrams, UML -- these notational tools can be critically important for capturing and communicating complex processes and interactions in engineering, physics and other disciplines.
But until now, there's been no complementary standard pictorial notation for biology. Lacking such a tool, the explosive increase in our understanding of genes, proteins and their interactions within living organisms has obliged researchers, the science press and other stakeholders to struggle with home-grown means of recording, working with and communicating around complex, dynamic processes with many simultaneously-acting agents. The haphazard results slow the spread of information and understanding through the scientific community, hinder use of bioinformatic tools to manage and compute and share using standard representations, and add risk to management, claims and litigation around intellectual property.
According to a brief on Science Daily, on Aug. 12, California Institute of Technology has now formally stepped into the breach by launching SBGN - the Systems Biological Graphical Notation - a flowchart-like system for describing complex biochemical processes in gene regulation, metabolism, cellular signaling and other domains.
The SBGN project is said to have begun in 2005 with work by Hiroaki Kitano of the Systems Biology Institute in Tokyo, and is now directed by Nicolas Le Novère of the European Molecular Biology Laboratory's European Bioinformatics Institute in Cambridge, England, and senior research fellow Michael Hucka, codirector of the Biological Network Modeling Center at Caltech's Beckman Institute. The release version of the notation has gone through vetting by experts in diverse fields, including bioinformatics and computing. Co-director Hucka is quoted as saying: "I believe that, just as happened with the engineering fields, SBGN will act as an enabler for the emergence of new industries devoted to the creation of software tools for working with SBGN, as well as its teaching and publication."

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