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- Circular_permutation_in_proteins abstract "A circular permutation is a relationship between proteins whereby the proteins have a changed order of amino acids in their peptide sequence. The result is a protein structure with different connectivity, but overall similar three-dimensional (3D) shape. In 1979, the first pair of circularly permuted proteins – concanavalin A and lectin – were discovered; over 2000 such proteins are now known.Circular permutation can occur as the result of evolutionary events, posttranslational modifications, or artificially engineered mutations. The two main models proposed to explain the evolution of circularly permuted proteins are permutation by duplication and fission and fusion. Permutation by duplication occurs when a gene undergoes duplication to form a tandem repeat, before redundant sections of the protein are removed; this relationship is found between saposin and swaposin. Fission and fusion occurs when partial proteins fuse to form a single polypeptide, such as in nicotinamide nucleotide transhydrogenases.Circular permutations are routinely engineered in the laboratory to improve their catalytic activity or thermostability, or to investigate properties of the original protein.Traditional algorithms for sequence alignment and structure alignment are not able to detect circular permutations between proteins. New non-linear approaches have been developed that overcome this and are able to detect topology-independent similarities.".
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- Circular_permutation_in_proteins wikiPageExternalLink MultiProt.
- Circular_permutation_in_proteins wikiPageExternalLink raspodom.
- Circular_permutation_in_proteins wikiPageExternalLink sarst.life.nthu.edu.tw.
- Circular_permutation_in_proteins wikiPageExternalLink source.rcsb.org.
- Circular_permutation_in_proteins wikiPageExternalLink motm.do?momID=124.
- Circular_permutation_in_proteins wikiPageExternalLink workbench.do.
- Circular_permutation_in_proteins wikiPageExternalLink SANA.
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- Circular_permutation_in_proteins hasPhotoCollection Circular_permutation_in_proteins.
- Circular_permutation_in_proteins subject Category:Permutations.
- Circular_permutation_in_proteins subject Category:Proteins.
- Circular_permutation_in_proteins type Abstraction100002137.
- Circular_permutation_in_proteins type Change107296428.
- Circular_permutation_in_proteins type Chemical114806838.
- Circular_permutation_in_proteins type Compound114818238.
- Circular_permutation_in_proteins type Event100029378.
- Circular_permutation_in_proteins type Happening107283608.
- Circular_permutation_in_proteins type Macromolecule114944888.
- Circular_permutation_in_proteins type Material114580897.
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- Circular_permutation_in_proteins type Molecule114682133.
- Circular_permutation_in_proteins type OrganicCompound114727670.
- Circular_permutation_in_proteins type Part113809207.
- Circular_permutation_in_proteins type Permutations.
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- Circular_permutation_in_proteins type Protein114728724.
- Circular_permutation_in_proteins type Proteins.
- Circular_permutation_in_proteins type PsychologicalFeature100023100.
- Circular_permutation_in_proteins type Relation100031921.
- Circular_permutation_in_proteins type Substance100019613.
- Circular_permutation_in_proteins type Substitution107443761.
- Circular_permutation_in_proteins type Thing100002452.
- Circular_permutation_in_proteins type Unit109465459.
- Circular_permutation_in_proteins type Variation107337390.
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- Circular_permutation_in_proteins comment "A circular permutation is a relationship between proteins whereby the proteins have a changed order of amino acids in their peptide sequence. The result is a protein structure with different connectivity, but overall similar three-dimensional (3D) shape.".
- Circular_permutation_in_proteins label "Circular permutation in proteins".
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- Circular_permutation_in_proteins depiction Circular_Permutation_In_Proteins.svg.
- Circular_permutation_in_proteins isPrimaryTopicOf Circular_permutation_in_proteins.