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return kwic search for system out of >500 occurrences
331253 occurrences (No.58 in the rank) during 5 years in the PubMed. [no cache] 500 found

179) Nuclear import mediated by the karyopherin α/β (importin α/β) heterodimer is perhaps the best characterised nuclear trafficking system in eukaryotic cells.

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PMID:24342392 DOI:10.1071/RD13205

2015 Reproduction, fertility, and development

* Dynamic changes in nuclear import of a nuclear localisation signal-bearing substrate in 8-cell stage porcine embryos.

- Coordinated intracellular trafficking is critically important for proper timing of major cellular events during embryogenesis. Nuclear import mediated by the karyopherin α/β (importin α/β) heterodimer is perhaps the best characterised nuclear trafficking system in eukaryotic cells. Seven karyopherin α subtypes have been identified in the domestic pig, and although each karyopherin α subtype transports proteins bearing classical nuclear localisation signals (NLSs), individual karyopherin α subtypes have been shown to preferentially transport specific cargoes. The aim of the present study was to determine the mechanism by which BRN2, a transcription factor previously reported to be transported by the karyopherin α/β heterodimer, gains access to the nucleus in porcine oocytes and embryos. Using a combination of in vivo and in vitro assays, we tested the hypothesis that discrete karyopherin α subtypes transport BRN2 into the nuclei of porcine oocytes and cleavage stage embryos. Our results show that ectopically expressed BRN2 adopts a nuclear localisation in all nuclei through the 4-cell stage of development, whereas only a subset of blastomeres in 8-cell stage embryos possess nuclear BRN2. This pattern is unique to BRN2 because another ectopically expressed NLS-containing protein is able to adopt a nuclear localisation in all blastomeres of 8-cell stage embryos.

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(1)88 null	(12)6 by	(23)3 (ANS)	(34)2 diseases
(2)30 and	(13)6 has	(24)3 (CNS)	(35)2 including
(3)19 is	(14)5 are	(25)3 a	(36)2 involvement
(4)18 of	(15)5 might	(26)3 after	(37)2 known
(5)18 was	(16)5 the	(27)3 as	(38)2 on
(6)17 in	(17)4 Adhesive	(28)3 based	(39)2 one
(7)16 that	(18)4 can	(29)3 development	(40)2 plays
(8)15 for	(19)4 have	(30)3 we	(41)2 related
(9)13 to	(20)4 may	(31)2 (GIS)	(42)2 results
(10)8 which	(21)4 using	(32)2 containing	(43)2 used
(11)7 with	(22)4 were	(33)2 demonstrated

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--- WordNet output for system --- =>制度組織体系的方式, システム, 組織, 整然とした手順, (思想などの)体系, 体制 Overview of noun system The noun system has 9 senses (first 8 from tagged texts) 1. (43) system -- (instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small computer") 2. (23) system, scheme -- (a group of independent but interrelated elements comprising a unified whole; "a vast system of production and distribution and consumption keep the country going") 3. (14) system -- ((physical chemistry) a sample of matter in which substances in different phases are in equilibrium; "in a static system oil cannot be replaced by water on a surface"; "a system generating hydrogen peroxide") 4. (10) system, system of rules -- (a complex of methods or rules governing behavior; "they have to operate under a system they oppose"; "that language has a complex system for indicating gender") 5. (8) arrangement, organization, organisation, system -- (an organized structure for arranging or classifying; "he changed the arrangement of the topics"; "the facts were familiar but it was in the organization of them that he was original"; "he tried to understand their system of classification") 6. (7) system -- (a group of physiologically or anatomically related organs or parts; "the body has a system of organs for digestion") 7. (6) system -- (a procedure or process for obtaining an objective; "they had to devise a system that did not depend on cooperation") 8. (1) system -- (the living body considered as made up of interdependent components forming a unified whole; "exercise helped him get the alcohol out of his system") 9. organization, organisation, system -- (an ordered manner; orderliness by virtue of being methodical and well organized; "his compulsive organization was not an endearing quality"; "we can't do it unless we establish some system around here") --- WordNet end ---