The 3cjl structure is likely a representative of a new fold with some resemblance to 3-helical bundle folds such as the serum albumin-like fold of SCOP. No significant hits reported by a Dali search. This protein is the first structural representative of a small (about 60 proteins) family of proteins that are found among proteo- and enterobacteria (REF http://www.topsan.org/Proteins/JCSG/3CJL).
","llm":false,"checked":false,"updated":false}],"wikipedia":[{"title":"Domain_of_unknown_function","extract":"A domain of unknown function (DUF) is a protein domain that has no characterised function. These families have been collected together in the Pfam database using the prefix DUF followed by a number, with examples being DUF2992 and DUF1220. As of 2019, there are almost 4,000 DUF families within the Pfam database representing over 22% of known families. Some DUFs are not named using the nomenclature due to popular usage but are nevertheless DUFs.
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