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פותח על ידי קלירמאש פתרונות בע"מ -
Evidence for intracellular spatial separation of hexokinases and fructokinases in tomato plants
Year:
2006
Source of publication :
Planta
Authors :
בלאוסוב, אדוארד
;
.
גדעוני, דוד
;
.
גרנות, דוד
;
.
דמארי-וייסלר, הילה
;
.
מט, אנהיט
;
.
קנדל-כפיר, מיכל
;
.
Volume :
224
Co-Authors:
Damari-Weissler, H., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Kandel-Kfir, M., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Gidoni, D., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Mett, A., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Belausov, E., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Granot, D., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Facilitators :
From page:
1495
To page:
1502
(
Total pages:
8
)
Abstract:
Four hexokinase (LeHXK1-4) and four fructokinase (LeFRK1-4) genes were identified in tomato plants. Previous GFP fusion studies indicate that the gene product of LeHXK3 is associated with the mitochondria while that of LeHXK4 is located within plastids. In this study we found that the enzyme encoded by the fructokinase gene LeFRK3 is also located within plastids. The presence of LeFrk3 enzyme in plastids raises the question of the origin of fructose in these organelles. The other three FRKs enzymes, LeFrk1&2&4, are located in the cytosol. Unlike LeFrk1&2&4, the two additional HXKs, LeHxk1&2, share a common membrane anchor domain and are associated with the mitochondria similar to LeHxk3. The difference in the locations of the cytoplasmic FRK and HXK isozymes suggests that glucose phosphorylation is confined to defined special intracellular localizations while fructose phosphorylation is less confined. © 2006 Springer-Verlag.
Note:
Related Files :
Base Sequence
chemistry
Fructokinase
metabolism
molecular genetics
Plastids
Sequence Homology, Amino Acid
עוד תגיות
תוכן קשור
More details
DOI :
10.1007/s00425-006-0387-9
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25387
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:14
You may also be interested in
Scientific Publication
Evidence for intracellular spatial separation of hexokinases and fructokinases in tomato plants
224
Damari-Weissler, H., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Kandel-Kfir, M., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Gidoni, D., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Mett, A., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Belausov, E., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Granot, D., Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Bet Dagan, 50250, Israel
Evidence for intracellular spatial separation of hexokinases and fructokinases in tomato plants
Four hexokinase (LeHXK1-4) and four fructokinase (LeFRK1-4) genes were identified in tomato plants. Previous GFP fusion studies indicate that the gene product of LeHXK3 is associated with the mitochondria while that of LeHXK4 is located within plastids. In this study we found that the enzyme encoded by the fructokinase gene LeFRK3 is also located within plastids. The presence of LeFrk3 enzyme in plastids raises the question of the origin of fructose in these organelles. The other three FRKs enzymes, LeFrk1&2&4, are located in the cytosol. Unlike LeFrk1&2&4, the two additional HXKs, LeHxk1&2, share a common membrane anchor domain and are associated with the mitochondria similar to LeHxk3. The difference in the locations of the cytoplasmic FRK and HXK isozymes suggests that glucose phosphorylation is confined to defined special intracellular localizations while fructose phosphorylation is less confined. © 2006 Springer-Verlag.
Scientific Publication
You may also be interested in