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Encapsulin nanocompartments, or encapsulin protein cages, are spherical bacterial organelle-like compartments roughly 25-30 nm in diameter that are involved in various aspects of metabolism, in particular protecting bacteria from oxidative stress. Encapsulin nanocompartments are structurally similar to the HK97 bacteriophage and their function depends on the proteins loaded into the nanocompartment. The sphere is formed from 60 (for a 25 nm sphere) or 180 (for a 30 nm sphere) copies of a single protomer, termed encapsulin. Their structure has been studied in great detail using X-ray crystallography and cryo-electron microscopy.

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  • Nanocompartimiento de encapsulina (es)
  • Encapsulin nanocompartment (en)
  • Nanocompartimento de encapsulina (pt)
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  • Os nanocompartimentos de encapsulina ou gaiolas da proteína encapsulina são organelos bacterianos esféricos com uns 30 nm de diâmetro que interveem em vários aspectos do metabolismo, em particular no sequestro de ferro, que servem para proteger bactérias de stress oxidativo. Quanto à sua estrutura e função, são bastante parecidos com ferritinas. São compostos por várias proteínas encapsulina, incluindo a proteína de revestimento EncA e as proteínas internas EncB, EncC e EncD. As suas estruturas foram estudadas em grande detalhe com recurso à cristalografia de raios X e . As encapsulinas purificadas de podem unir-se e desunir-se com as mudanças de pH. No estado combinado, o compartimento melhora a atividade da sua carga, uma enzima peroxidase. (pt)
  • Encapsulin nanocompartments, or encapsulin protein cages, are spherical bacterial organelle-like compartments roughly 25-30 nm in diameter that are involved in various aspects of metabolism, in particular protecting bacteria from oxidative stress. Encapsulin nanocompartments are structurally similar to the HK97 bacteriophage and their function depends on the proteins loaded into the nanocompartment. The sphere is formed from 60 (for a 25 nm sphere) or 180 (for a 30 nm sphere) copies of a single protomer, termed encapsulin. Their structure has been studied in great detail using X-ray crystallography and cryo-electron microscopy. (en)
  • Los nanocompartimientos de encapsulina, o jaulas de proteína encapsulina, son orgánulos procariotas que consisten en compartimientos proteicos esféricos de aproximadamente 25-30 nm de diámetro que están involucrados en varios aspectos del metabolismo, en particular protegiendo a las bacterias y arqueas del estrés oxidativo.​ Su función depende de las proteínas cargadas en el nanocompartimiento. La esfera está formada por 60 (para una esfera de 25 nm) o 180 (para una esfera de 30 nm) copias de un solo protómero, denominado encapsulina. Su estructura se ha estudiado con gran detalle mediante cristalografía de rayos X y . Los nanocompartimientos de encapsulina son estructuralmente similares a las cápsides de los caudovirus y los herpesvirus con los que parece estar emparentado y comparten una (es)
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  • Encapsulin nanocompartments, or encapsulin protein cages, are spherical bacterial organelle-like compartments roughly 25-30 nm in diameter that are involved in various aspects of metabolism, in particular protecting bacteria from oxidative stress. Encapsulin nanocompartments are structurally similar to the HK97 bacteriophage and their function depends on the proteins loaded into the nanocompartment. The sphere is formed from 60 (for a 25 nm sphere) or 180 (for a 30 nm sphere) copies of a single protomer, termed encapsulin. Their structure has been studied in great detail using X-ray crystallography and cryo-electron microscopy. A number of different types of proteins have been identified as being loaded into encapsulin nanocompartments. Peroxidases or proteins similar to ferritins are the two most common types of cargo proteins. While most encapsulin nanocompartments contain only one type of cargo protein, in some species two or three types of cargo proteins are loaded. Encapsulins purified from Rhodococcus jostii can be assembled and disassembled with changes in pH. In the assembled state, the compartment enhances the activity of its cargo, a peroxidase enzyme. (en)
  • Los nanocompartimientos de encapsulina, o jaulas de proteína encapsulina, son orgánulos procariotas que consisten en compartimientos proteicos esféricos de aproximadamente 25-30 nm de diámetro que están involucrados en varios aspectos del metabolismo, en particular protegiendo a las bacterias y arqueas del estrés oxidativo.​ Su función depende de las proteínas cargadas en el nanocompartimiento. La esfera está formada por 60 (para una esfera de 25 nm) o 180 (para una esfera de 30 nm) copias de un solo protómero, denominado encapsulina. Su estructura se ha estudiado con gran detalle mediante cristalografía de rayos X y . Los nanocompartimientos de encapsulina son estructuralmente similares a las cápsides de los caudovirus y los herpesvirus con los que parece estar emparentado y comparten una proteína similar.​​ Los análisis filogenéticos de las secuencias proteicas sugieren que los nanocompartimientos de encapsulina se originaron a partir de las cápsides de los caudovirus.​ Se han identificado varios tipos diferentes de proteínas que se cargan en nanocompartimientos de encapsulina. Las peroxidasas o proteínas similares a las ferritinas son los dos tipos más comunes de proteínas de carga. Si bien la mayoría de los nanocompartimientos de encapsulina contienen solo un tipo de proteína de carga, en algunas especies se cargan dos o tres tipos de proteínas de carga.​​​ Las encapsulinas purificadas de la bacteria se pueden ensamblar y desmontar con cambios de pH. En estado ensamblado, el compartimento mejora la actividad de su carga, una enzima peroxidasa.​ (es)
  • Os nanocompartimentos de encapsulina ou gaiolas da proteína encapsulina são organelos bacterianos esféricos com uns 30 nm de diâmetro que interveem em vários aspectos do metabolismo, em particular no sequestro de ferro, que servem para proteger bactérias de stress oxidativo. Quanto à sua estrutura e função, são bastante parecidos com ferritinas. São compostos por várias proteínas encapsulina, incluindo a proteína de revestimento EncA e as proteínas internas EncB, EncC e EncD. As suas estruturas foram estudadas em grande detalhe com recurso à cristalografia de raios X e . As encapsulinas purificadas de podem unir-se e desunir-se com as mudanças de pH. No estado combinado, o compartimento melhora a atividade da sua carga, uma enzima peroxidase. (pt)
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