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Typus
KomplettPlagiat
Bearbeiter
Hindemith
Gesichtet
Yes.png
Untersuchte Arbeit:
Seite: 7, Zeilen: 19-31
Quelle: Joost et al 2002
Seite(n): E975, E976, Zeilen: E975: r.col: 18ff; E976: l.col: 1ff
Class I is comprised of the extensively characterized glucose transporters GLUT1 to GLUT4, which can be distinguished on the basis of their distinct tissue distributions (GLUT1, erythrocytes, brain micro vessels; GLUT2 , liver, pancreatic islets; GLUT3, neuronal cells; GLUT4, muscle, adipose tissue) and their hormonal regulation (e.g., insulin sensitivity of GLUT4) (19). Class II is comprised of the fructose-specific transporter GLUT5 (20) and three related proteins, GLUT7 (SLC1A7), GLUT9 (SLC1A9), and GLUT11 (SLC1A11) (21) For GLUT11, fructose-inhibitable glucose transport activity has been demonstrated in a system of reconstituted vesicles. Class III is characterized by the lack of a glycosylation site in the first extra cellular linker domain and by the presence of such a site in loop 9. HMIT1 (SLC1A13), can be included in the class III GLUTs . Glucose transport activity has been demonstrated for GLUT6 and GLUT8. It should be emphasized, however, that the designation of the family does not necessarily reflect the substrate specificity of its members, which may transport sugars or polyols other than glucose (e.g. GLUT5-fructose, MIT1-myoinositol) (20).

19. Davey,KA, Garlick,PB, Warley,A, Southworth,R: Immunogold labeling study of the distribution of GLUT-1 and GLUT-4 in cardiac tissue following stimulation by insulin or ischemia. Am.J.Physiol Heart Circ.Physiol 292:H2009-H2019, 2007

20. Drozdowski,LA, Woudstra,TD, Wild,GE, Clandinin,MT, Thomson,AB: Ageassociated changes in intestinal fructose uptake are not explained by alterations in the abundance of GLUT5 or GLUT2. J.Nutr.Biochem. 15:630-637, 2004

21. Stuart,CA, Yin,D, Howell,ME, Dykes,RJ, Laffan,JJ, Ferrando,AA: Hexose transporter mRNAs for GLUT4, GLUT5, and GLUT12 predominate in human muscle. Am.J.Physiol Endocrinol.Metab 291:E1067-E1073, 2006

Class I is comprised of the extensively characterized glucose transporters GLUT1 to GLUT4, which can be distinguished on the basis of their distinct tissue distributions (GLUT1, erythrocytes, brain microvessels; GLUT2, liver, pancreatic islets; GLUT3, neuronal cells; GLUT4, muscle, adipose tissue) and their hormonal regulation (e.g., insulin sensitivity of GLUT4). Class II is comprised of the fructose-specific transporter GLUT5 and three related proteins, GLUT7, GLUT9, and GLUT11. For GLUT11, fructose-inhibitable glucose transport activity has been demonstrated in a system of reconstituted vesicles (4). Class III is characterized by the lack of a glycosylation site in the first extracellular linker domain and by the presence of such a site in loop 9.

[page E976]

[...] (HMIT1, Ref. 18) can be included in the class III GLUTs (10). Glucose transport activity has been demonstrated for GLUT6 and GLUT8. It should be emphasized, however, that the designation of the family does not necessarily reflect the substrate specificity of its members, which may transport sugars or polyols other than glucose (e.g., GLUT5, fructose; HMIT1, myoinositol).


4. Doege H, Bocianski A, Scheepers A, Axer H, Eckel J, Joost HG, and Schürmann A. Characterization of the human glucose transporter GLUT11, a novel sugar transport facilitator specifically expressed in heart and skeletal muscle. Biochem J 359: 443–449, 2001.

10. Joost HG and Thorens B. The extended GLUT-family of sugar/polyol transport facilitators—nomenclature, sequence characteristics, and potential function of its novel members. Molec Membr Biol 18: 247–256, 2001.

18. Uldry M, Ibberson M, Riederer B, Chatton JY, Horisberger JD, and Thorens B. Identification of a novel H+-myoinositol symporter expressed predominantly in the brain. EMBO J 20: 4467–4477, 2001.

Anmerkungen

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Sichter
(Hindemith) LieschenMueller

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