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Characterization of a transport activity for long-chain peptides in barley mesophyll vacuoles

Identifieur interne : 001D31 ( PascalFrancis/Corpus ); précédent : 001D30; suivant : 001D32

Characterization of a transport activity for long-chain peptides in barley mesophyll vacuoles

Auteurs : Magali Schnell Ramos ; Rupert Abele ; Reka Nagy ; Marianne Suter Grotemeyer ; Robert Tampe ; Doris Rentsch ; Enrico Martinoia

Source :

RBID : Pascal:11-0251115

Descripteurs français

English descriptors

Abstract

The plant vacuole is the largest compartment in a fully expanded plant cell. While only very limited metabolic activity can be observed within the vacuole, the majority of the hydrolytic activities, including proteolytic activities reside in this organelle. Since it is assumed that protein degradation by the proteasome results in the production of peptides with a size of 3-30 amino acids, we were interested to show whether the tonoplast exhibits a transport activity, which could deliver these peptides into the vacuole for final degradation. It is shown here that isolated barley mesophyll vacuoles take up peptides of 9-27 amino acids in a strictly ATP-dependent manner. Uptake is inhibited by vanadate, but not by NH+4, while GTP could partially substitute for ATP. The apparent affinity for the 9 amino acid peptide was 15 μM, suggesting that peptides are efficiently transferred to the vacuole in vivo. Inhibition experiments showed that peptides with a chain length below 10 amino acids did not compete as efficiently as longer peptides for the uptake of the 9 amino acid peptide. Our results suggest that vacuoles contain at least one peptide transporter that belongs to the ABC-type transporters, which efficiently exports long-chain peptides from the cytosol into the vacuole for final degradation.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

pA  
A01 01  1    @0 0022-0957
A02 01      @0 JEBOA6
A03   1    @0 J. exp. bot.
A05       @2 62
A06       @2 7
A08 01  1  ENG  @1 Characterization of a transport activity for long-chain peptides in barley mesophyll vacuoles
A09 01  1  ENG  @1 PLANT MEMBRANE BIOLOGY
A11 01  1    @1 SCHNELL RAMOS (Magali)
A11 02  1    @1 ABELE (Rupert)
A11 03  1    @1 NAGY (Reka)
A11 04  1    @1 SUTER GROTEMEYER (Marianne)
A11 05  1    @1 TAMPE (Robert)
A11 06  1    @1 RENTSCH (Doris)
A11 07  1    @1 MARTINOIA (Enrico)
A12 01  1    @1 GILLIHAM (M.) @9 limin.
A14 01      @1 Institute of Plant Biology, University Zurich, Zollikerstrasse 107 @2 8008 Zurich @3 CHE @Z 1 aut. @Z 3 aut. @Z 7 aut.
A14 02      @1 Institute of Biochemistry, Biocenter, Goethe-University Frankfurt, Max-von-Laue Strasse 9 9 @2 60438 Frankfurt am Main @3 DEU @Z 2 aut. @Z 5 aut.
A14 03      @1 Institute of Plant Sciences, University of Bern, Altenbergrain 21 @2 3013 Bern @3 CHE @Z 4 aut. @Z 6 aut.
A14 04      @1 Institut des Sciences du Végétal, CNRS, 1, av. de la Terrasse @2 91198 Gif-sur-Yvette @3 FRA @Z 1 aut.
A15 01      @1 School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide @3 AUS @Z 1 aut.
A20       @1 2403-2410
A21       @1 2011
A23 01      @0 ENG
A43 01      @1 INIST @2 6923 @5 354000191483460140
A44       @0 0000 @1 © 2011 INIST-CNRS. All rights reserved.
A45       @0 1 p.
A47 01  1    @0 11-0251115
A60       @1 P @3 PR
A61       @0 A
A64 01  1    @0 Journal of experimental botany
A66 01      @0 GBR
C01 01    ENG  @0 The plant vacuole is the largest compartment in a fully expanded plant cell. While only very limited metabolic activity can be observed within the vacuole, the majority of the hydrolytic activities, including proteolytic activities reside in this organelle. Since it is assumed that protein degradation by the proteasome results in the production of peptides with a size of 3-30 amino acids, we were interested to show whether the tonoplast exhibits a transport activity, which could deliver these peptides into the vacuole for final degradation. It is shown here that isolated barley mesophyll vacuoles take up peptides of 9-27 amino acids in a strictly ATP-dependent manner. Uptake is inhibited by vanadate, but not by NH+4, while GTP could partially substitute for ATP. The apparent affinity for the 9 amino acid peptide was 15 μM, suggesting that peptides are efficiently transferred to the vacuole in vivo. Inhibition experiments showed that peptides with a chain length below 10 amino acids did not compete as efficiently as longer peptides for the uptake of the 9 amino acid peptide. Our results suggest that vacuoles contain at least one peptide transporter that belongs to the ABC-type transporters, which efficiently exports long-chain peptides from the cytosol into the vacuole for final degradation.
C02 01  X    @0 002A10
C03 01  X  FRE  @0 Transport @5 01
C03 01  X  ENG  @0 Transport @5 01
C03 01  X  SPA  @0 Transporte @5 01
C03 02  X  FRE  @0 Peptide @5 02
C03 02  X  ENG  @0 Peptides @5 02
C03 02  X  SPA  @0 Péptido @5 02
C03 03  X  FRE  @0 Orge @5 03
C03 03  X  ENG  @0 Barley @5 03
C03 03  X  SPA  @0 Cebada @5 03
C03 04  X  FRE  @0 Feuille végétal @5 04
C03 04  X  ENG  @0 Plant leaf @5 04
C03 04  X  SPA  @0 Hoja vegetal @5 04
C03 05  X  FRE  @0 Vacuole @5 05
C03 05  X  ENG  @0 Vacuole @5 05
C03 05  X  SPA  @0 Vacuola @5 05
C03 06  X  FRE  @0 Botanique @5 06
C03 06  X  ENG  @0 Botany @5 06
C03 06  X  SPA  @0 Botánica @5 06
C03 07  X  FRE  @0 Hordeum vulgare @2 NS @5 10
C03 07  X  ENG  @0 Hordeum vulgare @2 NS @5 10
C03 07  X  SPA  @0 Hordeum vulgare @2 NS @5 10
C03 08  X  FRE  @0 Chaîne longue @5 15
C03 08  X  ENG  @0 Long chain @5 15
C03 08  X  SPA  @0 Cadena larga @5 15
C03 09  X  FRE  @0 Transporteur ABC @5 16
C03 09  X  ENG  @0 ABC transporter @5 16
C03 09  X  SPA  @0 Transportador ABC @5 16
C03 10  X  FRE  @0 Mésophylle @4 CD @5 96
C03 10  X  ENG  @0 Mesophyll @4 CD @5 96
C07 01  X  FRE  @0 Gramineae @2 NS
C07 01  X  ENG  @0 Gramineae @2 NS
C07 01  X  SPA  @0 Gramineae @2 NS
C07 02  X  FRE  @0 Monocotyledones @2 NS
C07 02  X  ENG  @0 Monocotyledones @2 NS
C07 02  X  SPA  @0 Monocotyledones @2 NS
C07 03  X  FRE  @0 Angiospermae @2 NS
C07 03  X  ENG  @0 Angiospermae @2 NS
C07 03  X  SPA  @0 Angiospermae @2 NS
C07 04  X  FRE  @0 Spermatophyta @2 NS
C07 04  X  ENG  @0 Spermatophyta @2 NS
C07 04  X  SPA  @0 Spermatophyta @2 NS
C07 05  X  FRE  @0 Plante céréalière @5 31
C07 05  X  ENG  @0 Cereal crop @5 31
C07 05  X  SPA  @0 Planta cerealista @5 31
N21       @1 171
N44 01      @1 OTO
N82       @1 OTO

Format Inist (serveur)

NO : PASCAL 11-0251115 INIST
ET : Characterization of a transport activity for long-chain peptides in barley mesophyll vacuoles
AU : SCHNELL RAMOS (Magali); ABELE (Rupert); NAGY (Reka); SUTER GROTEMEYER (Marianne); TAMPE (Robert); RENTSCH (Doris); MARTINOIA (Enrico); GILLIHAM (M.)
AF : Institute of Plant Biology, University Zurich, Zollikerstrasse 107/8008 Zurich/Suisse (1 aut., 3 aut., 7 aut.); Institute of Biochemistry, Biocenter, Goethe-University Frankfurt, Max-von-Laue Strasse 9 9/60438 Frankfurt am Main/Allemagne (2 aut., 5 aut.); Institute of Plant Sciences, University of Bern, Altenbergrain 21/3013 Bern/Suisse (4 aut., 6 aut.); Institut des Sciences du Végétal, CNRS, 1, av. de la Terrasse/91198 Gif-sur-Yvette/France (1 aut.); School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide/Australie (1 aut.)
DT : Publication en série; Papier de recherche; Niveau analytique
SO : Journal of experimental botany; ISSN 0022-0957; Coden JEBOA6; Royaume-Uni; Da. 2011; Vol. 62; No. 7; Pp. 2403-2410; Bibl. 1 p.
LA : Anglais
EA : The plant vacuole is the largest compartment in a fully expanded plant cell. While only very limited metabolic activity can be observed within the vacuole, the majority of the hydrolytic activities, including proteolytic activities reside in this organelle. Since it is assumed that protein degradation by the proteasome results in the production of peptides with a size of 3-30 amino acids, we were interested to show whether the tonoplast exhibits a transport activity, which could deliver these peptides into the vacuole for final degradation. It is shown here that isolated barley mesophyll vacuoles take up peptides of 9-27 amino acids in a strictly ATP-dependent manner. Uptake is inhibited by vanadate, but not by NH+4, while GTP could partially substitute for ATP. The apparent affinity for the 9 amino acid peptide was 15 μM, suggesting that peptides are efficiently transferred to the vacuole in vivo. Inhibition experiments showed that peptides with a chain length below 10 amino acids did not compete as efficiently as longer peptides for the uptake of the 9 amino acid peptide. Our results suggest that vacuoles contain at least one peptide transporter that belongs to the ABC-type transporters, which efficiently exports long-chain peptides from the cytosol into the vacuole for final degradation.
CC : 002A10
FD : Transport; Peptide; Orge; Feuille végétal; Vacuole; Botanique; Hordeum vulgare; Chaîne longue; Transporteur ABC; Mésophylle
FG : Gramineae; Monocotyledones; Angiospermae; Spermatophyta; Plante céréalière
ED : Transport; Peptides; Barley; Plant leaf; Vacuole; Botany; Hordeum vulgare; Long chain; ABC transporter; Mesophyll
EG : Gramineae; Monocotyledones; Angiospermae; Spermatophyta; Cereal crop
SD : Transporte; Péptido; Cebada; Hoja vegetal; Vacuola; Botánica; Hordeum vulgare; Cadena larga; Transportador ABC
LO : INIST-6923.354000191483460140
ID : 11-0251115

Links to Exploration step

Pascal:11-0251115

Le document en format XML

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<div type="abstract" xml:lang="en">The plant vacuole is the largest compartment in a fully expanded plant cell. While only very limited metabolic activity can be observed within the vacuole, the majority of the hydrolytic activities, including proteolytic activities reside in this organelle. Since it is assumed that protein degradation by the proteasome results in the production of peptides with a size of 3-30 amino acids, we were interested to show whether the tonoplast exhibits a transport activity, which could deliver these peptides into the vacuole for final degradation. It is shown here that isolated barley mesophyll vacuoles take up peptides of 9-27 amino acids in a strictly ATP-dependent manner. Uptake is inhibited by vanadate, but not by NH
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, while GTP could partially substitute for ATP. The apparent affinity for the 9 amino acid peptide was 15 μM, suggesting that peptides are efficiently transferred to the vacuole in vivo. Inhibition experiments showed that peptides with a chain length below 10 amino acids did not compete as efficiently as longer peptides for the uptake of the 9 amino acid peptide. Our results suggest that vacuoles contain at least one peptide transporter that belongs to the ABC-type transporters, which efficiently exports long-chain peptides from the cytosol into the vacuole for final degradation.</div>
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<s0>The plant vacuole is the largest compartment in a fully expanded plant cell. While only very limited metabolic activity can be observed within the vacuole, the majority of the hydrolytic activities, including proteolytic activities reside in this organelle. Since it is assumed that protein degradation by the proteasome results in the production of peptides with a size of 3-30 amino acids, we were interested to show whether the tonoplast exhibits a transport activity, which could deliver these peptides into the vacuole for final degradation. It is shown here that isolated barley mesophyll vacuoles take up peptides of 9-27 amino acids in a strictly ATP-dependent manner. Uptake is inhibited by vanadate, but not by NH
<sup>+</sup>
<sub>4</sub>
, while GTP could partially substitute for ATP. The apparent affinity for the 9 amino acid peptide was 15 μM, suggesting that peptides are efficiently transferred to the vacuole in vivo. Inhibition experiments showed that peptides with a chain length below 10 amino acids did not compete as efficiently as longer peptides for the uptake of the 9 amino acid peptide. Our results suggest that vacuoles contain at least one peptide transporter that belongs to the ABC-type transporters, which efficiently exports long-chain peptides from the cytosol into the vacuole for final degradation.</s0>
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<ET>Characterization of a transport activity for long-chain peptides in barley mesophyll vacuoles</ET>
<AU>SCHNELL RAMOS (Magali); ABELE (Rupert); NAGY (Reka); SUTER GROTEMEYER (Marianne); TAMPE (Robert); RENTSCH (Doris); MARTINOIA (Enrico); GILLIHAM (M.)</AU>
<AF>Institute of Plant Biology, University Zurich, Zollikerstrasse 107/8008 Zurich/Suisse (1 aut., 3 aut., 7 aut.); Institute of Biochemistry, Biocenter, Goethe-University Frankfurt, Max-von-Laue Strasse 9 9/60438 Frankfurt am Main/Allemagne (2 aut., 5 aut.); Institute of Plant Sciences, University of Bern, Altenbergrain 21/3013 Bern/Suisse (4 aut., 6 aut.); Institut des Sciences du Végétal, CNRS, 1, av. de la Terrasse/91198 Gif-sur-Yvette/France (1 aut.); School of Agriculture, Food and Wine & Waite Research Institute, University of Adelaide/Australie (1 aut.)</AF>
<DT>Publication en série; Papier de recherche; Niveau analytique</DT>
<SO>Journal of experimental botany; ISSN 0022-0957; Coden JEBOA6; Royaume-Uni; Da. 2011; Vol. 62; No. 7; Pp. 2403-2410; Bibl. 1 p.</SO>
<LA>Anglais</LA>
<EA>The plant vacuole is the largest compartment in a fully expanded plant cell. While only very limited metabolic activity can be observed within the vacuole, the majority of the hydrolytic activities, including proteolytic activities reside in this organelle. Since it is assumed that protein degradation by the proteasome results in the production of peptides with a size of 3-30 amino acids, we were interested to show whether the tonoplast exhibits a transport activity, which could deliver these peptides into the vacuole for final degradation. It is shown here that isolated barley mesophyll vacuoles take up peptides of 9-27 amino acids in a strictly ATP-dependent manner. Uptake is inhibited by vanadate, but not by NH
<sup>+</sup>
<sub>4</sub>
, while GTP could partially substitute for ATP. The apparent affinity for the 9 amino acid peptide was 15 μM, suggesting that peptides are efficiently transferred to the vacuole in vivo. Inhibition experiments showed that peptides with a chain length below 10 amino acids did not compete as efficiently as longer peptides for the uptake of the 9 amino acid peptide. Our results suggest that vacuoles contain at least one peptide transporter that belongs to the ABC-type transporters, which efficiently exports long-chain peptides from the cytosol into the vacuole for final degradation.</EA>
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<FD>Transport; Peptide; Orge; Feuille végétal; Vacuole; Botanique; Hordeum vulgare; Chaîne longue; Transporteur ABC; Mésophylle</FD>
<FG>Gramineae; Monocotyledones; Angiospermae; Spermatophyta; Plante céréalière</FG>
<ED>Transport; Peptides; Barley; Plant leaf; Vacuole; Botany; Hordeum vulgare; Long chain; ABC transporter; Mesophyll</ED>
<EG>Gramineae; Monocotyledones; Angiospermae; Spermatophyta; Cereal crop</EG>
<SD>Transporte; Péptido; Cebada; Hoja vegetal; Vacuola; Botánica; Hordeum vulgare; Cadena larga; Transportador ABC</SD>
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