---
OA_place: publisher
OA_type: hybrid
_id: '22647'
abstract:
- lang: eng
text: "Within the plant endomembrane system, the vesicle coat protein clathrin localizes
to the plasma membrane (PM) and the trans-Golgi Network/early endosome (TGN/EE).
While the role of clathrin in endocytosis at the PM is well established, its function
at TGN/EE, presumably in late secretion (trafficking from the TGN/EE to the cell
surface) or en route to the vacuole, is debated. Similarly debated are potential
homeostatic mechanisms balancing the trafficking routes, especially endocytosis
and late secretion.\r\nWe address these questions in Arabidopsis thaliana using
conditional silencing of CLATHRIN HEAVY CHAIN (CHC), conditional overexpression
of the clathrin uncoating factor AUXILIN-LIKE1, and secretory mutants.\r\nCHC
silencing interferes with trafficking of cargoes destined for the apoplast and
the PM, supporting a function of clathrin in late secretion. The secretory cargoes
become abnormally rerouted from the TGN/EE to the vacuole. Unlike CHC silencing,
overexpression of AUXILIN-LIKE1 selectively inhibits clathrin-mediated endocytosis
while secretion continues normally at early points of induction. Conversely, secretory
mutants exhibit a reduced PM recruitment of clathrin, and variably, of the TPLATE
endocytic component.\r\nTogether, our data show a role of clathrin in secretion
and suggest secretion as a fundamental trafficking process to which endocytosis
is adjusted by a weak homeostatic mechanism."
acknowledgement: 'The authors wish to acknowledge Dr. Paweł Baster for cloning PIN1-GFP-2/pDONR221,
Ms. Aline Monzer and Dr. Mingyue Li for help with CHC protein level evaluation,
Dr. Michał Rychłowski for help with confocal microscopy, Prof. Ari Pekka Mähönen
for sharing the p1R4-pUBQ10:XVE plasmid, and Prof. Ying Gu for sharing seeds of
the sec5 mutant. M.A. would like to thank Dr. Xixi Zhang and Prof. Sebastian Bednarek
for inspiring discussions. This work was supported by the Taif University Researchers
Supporting Project, TURSP-HC2022/02 to JF and SA and Austrian Science Fund (FWF):
I 3630-B25 to JF. Open Access funding provided by Institute of Science and Technology
Austria.'
article_number: nph.71454
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
- first_name: Adam
full_name: Gackowski, Adam
last_name: Gackowski
- first_name: Ivana
full_name: Matijevic, Ivana
id: 83c17ce3-15b2-11ec-abd3-f486545870bd
last_name: Matijevic
- first_name: Saqer S.
full_name: Alotaibi, Saqer S.
last_name: Alotaibi
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Adamowski M, Gackowski A, Matijevic I, Alotaibi SS, Friml J. The role of clathrin
in post‐Golgi secretion in plant cells. New Phytologist. 2026. doi:10.1111/nph.71454
apa: Adamowski, M., Gackowski, A., Matijevic, I., Alotaibi, S. S., & Friml,
J. (2026). The role of clathrin in post‐Golgi secretion in plant cells. New
Phytologist. Wiley. https://doi.org/10.1111/nph.71454
chicago: Adamowski, Maciek, Adam Gackowski, Ivana Matijevic, Saqer S. Alotaibi,
and Jiří Friml. “The Role of Clathrin in Post‐Golgi Secretion in Plant Cells.”
New Phytologist. Wiley, 2026. https://doi.org/10.1111/nph.71454.
ieee: M. Adamowski, A. Gackowski, I. Matijevic, S. S. Alotaibi, and J. Friml, “The
role of clathrin in post‐Golgi secretion in plant cells,” New Phytologist.
Wiley, 2026.
ista: Adamowski M, Gackowski A, Matijevic I, Alotaibi SS, Friml J. 2026. The role
of clathrin in post‐Golgi secretion in plant cells. New Phytologist., nph. 71454.
mla: Adamowski, Maciek, et al. “The Role of Clathrin in Post‐Golgi Secretion in
Plant Cells.” New Phytologist, nph. 71454, Wiley, 2026, doi:10.1111/nph.71454.
short: M. Adamowski, A. Gackowski, I. Matijevic, S.S. Alotaibi, J. Friml, New Phytologist
(2026).
corr_author: '1'
das_tickbox: '1'
dataavailabilitystatement: 'Original data associated with this study have been deposited
in Dataset S1. The accession nos. of A. thaliana genes used in this study are as
follows: CHC1 (AT3G11130), CHC2 (AT3G08530), CLC2 (AT2G40060), TPLATE (AT3G01780),
AP2A1 (AT5G22770), DRP1C (AT1G14830), GNOM-LIKE1 (AT5G39500), BEN3/BIG2 (AT3G60860),
TMK4 (AT3G23750), PIN1 (AT1G73590), AUXILIN-LIKE1 (AT4G12780), AP1M2 (AT1G60780),
ECHIDNA (AT1G09330), SEC5A (AT1G76850), SEC5B (AT1G21170), TUB2 (AT5G62690), and
PP2AA3 (AT1G13320).'
date_created: 2026-08-04T06:48:41Z
date_published: 2026-07-20T00:00:00Z
date_updated: 2026-08-04T07:58:27Z
day: '20'
department:
- _id: JiFr
- _id: MaLo
- _id: GradSch
doi: 10.1111/nph.71454
external_id:
pmid:
- '42477503'
fulldoi: https://doi.org/10.1111/nph.71454
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/nph.71454
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 26538374-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03630
name: Molecular mechanisms of endocytic cargo recognition in plants
publication: New Phytologist
publication_identifier:
eissn:
- 1469-8137
issn:
- 0028-646X
publication_status: epub_ahead
publisher: Wiley
quality_controlled: '1'
researchdata_availability: yes
scopus_import: '1'
status: public
supplementarymaterial: yes
title: The role of clathrin in post‐Golgi secretion in plant cells
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
APC_amount: 2792,52 EUR
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '15033'
abstract:
- lang: eng
text: The GNOM (GN) Guanine nucleotide Exchange Factor for ARF small GTPases (ARF-GEF)
is among the best studied trafficking regulators in plants, playing crucial and
unique developmental roles in patterning and polarity. The current models place
GN at the Golgi apparatus (GA), where it mediates secretion/recycling, and at
the plasma membrane (PM) presumably contributing to clathrin-mediated endocytosis
(CME). The mechanistic basis of the developmental function of GN, distinct from
the other ARF-GEFs including its closest homologue GNOM-LIKE1 (GNL1), remains
elusive. Insights from this study largely extend the current notions of GN function.
We show that GN, but not GNL1, localizes to the cell periphery at long-lived structures
distinct from clathrin-coated pits, while CME and secretion proceed normally in
gn knockouts. The functional GN mutant variant GNfewerroots,
absent from the GA, suggests that the cell periphery is the major site of GN action
responsible for its developmental function. Following inhibition by Brefeldin
A, GN, but not GNL1, relocates to the PM likely on exocytic vesicles, suggesting
selective molecular associations en route to the cell periphery. A study of GN-GNL1
chimeric ARF-GEFs indicates that all GN domains contribute to the specific GN
function in a partially redundant manner. Together, this study offers significant
steps toward the elucidation of the mechanism underlying unique cellular and development
functions of GNOM.
acknowledgement: The authors would like to gratefully acknowledge Dr Xixi Zhang for
cloning the GNL1/pDONR221 construct and for useful discussions.H2020 European Research
Council Advanced Grant ETAP742985 to Jiří Friml, Austrian Science Fund I 3630-B25
to Jiří Friml
article_processing_charge: Yes
article_type: original
author:
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
- first_name: Ivana
full_name: Matijevic, Ivana
id: 83c17ce3-15b2-11ec-abd3-f486545870bd
last_name: Matijevic
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Adamowski M, Matijevic I, Friml J. Developmental patterning function of GNOM
ARF-GEF mediated from the cell periphery. eLife. 2024;13. doi:10.7554/elife.68993
apa: Adamowski, M., Matijevic, I., & Friml, J. (2024). Developmental patterning
function of GNOM ARF-GEF mediated from the cell periphery. ELife. eLife
Sciences Publications. https://doi.org/10.7554/elife.68993
chicago: Adamowski, Maciek, Ivana Matijevic, and Jiří Friml. “Developmental Patterning
Function of GNOM ARF-GEF Mediated from the Cell Periphery.” ELife. eLife
Sciences Publications, 2024. https://doi.org/10.7554/elife.68993.
ieee: M. Adamowski, I. Matijevic, and J. Friml, “Developmental patterning function
of GNOM ARF-GEF mediated from the cell periphery,” eLife, vol. 13. eLife
Sciences Publications, 2024.
ista: Adamowski M, Matijevic I, Friml J. 2024. Developmental patterning function
of GNOM ARF-GEF mediated from the cell periphery. eLife. 13.
mla: Adamowski, Maciek, et al. “Developmental Patterning Function of GNOM ARF-GEF
Mediated from the Cell Periphery.” ELife, vol. 13, eLife Sciences Publications,
2024, doi:10.7554/elife.68993.
short: M. Adamowski, I. Matijevic, J. Friml, ELife 13 (2024).
corr_author: '1'
date_created: 2024-02-27T07:10:11Z
date_published: 2024-02-21T00:00:00Z
date_updated: 2025-10-15T06:31:47Z
day: '21'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.7554/elife.68993
ec_funded: 1
external_id:
isi:
- '001174278000001'
pmid:
- '38381485'
file:
- access_level: open_access
checksum: b2b2d583b433823af731842f1420113e
content_type: application/pdf
creator: dernst
date_created: 2024-07-22T11:51:50Z
date_updated: 2024-07-22T11:51:50Z
file_id: '17310'
file_name: 2024_eLife_Adamowski.pdf
file_size: 15675744
relation: main_file
success: 1
file_date_updated: 2024-07-22T11:51:50Z
fulldoi: https://doi.org/10.7554/elife.68993
has_accepted_license: '1'
intvolume: ' 13'
isi: 1
keyword:
- General Immunology and Microbiology
- General Biochemistry
- Genetics and Molecular Biology
- General Medicine
- General Neuroscience
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
- _id: 26538374-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03630
name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 3AC91DDA-15DF-11EA-824D-93A3E7B544D1
call_identifier: FWF
name: FWF Open Access Fund
publication: eLife
publication_identifier:
issn:
- 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Developmental patterning function of GNOM ARF-GEF mediated from the cell periphery
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 13
year: '2024'
...
---
_id: '15374'
abstract:
- lang: eng
text: Clathrin-mediated endocytosis (CME) is an essential process of cargo uptake
operating in all eukaryotes. In animals and yeast, BAR-SH3 domain proteins, endophilins
and amphiphysins, function at the conclusion of CME to recruit factors for vesicle
scission and uncoating. Arabidopsis thaliana contains the BAR-SH3 domain proteins
SH3P1–SH3P3, but their role is poorly understood. Here, we identify SH3Ps as functional
homologs of endophilin/amphiphysin. SH3P1–SH3P3 bind to discrete foci at the plasma
membrane (PM), and SH3P2 recruits late to a subset of clathrin-coated pits. The
SH3P2 PM recruitment pattern is nearly identical to its interactor, a putative
uncoating factor, AUXILIN-LIKE1. Notably, SH3P1–SH3P3 are required for most of
AUXILIN-LIKE1 recruitment to the PM. This indicates a plant-specific modification
of CME, where BAR-SH3 proteins recruit auxilin-like uncoating factors rather than
the uncoating phosphatases, synaptojanins. SH3P1–SH3P3 act redundantly in overall
CME with the plant-specific endocytic adaptor TPLATE complex but not due to an
SH3 domain in its TASH3 subunit.
acknowledgement: 'The authors wish to acknowledge Dr. Daniel van Damme for mRuby3/pDONRP2rP3
and Prof. Qi-Jun Chen for sharing plasmids used for CRISPR-Cas9 mutagenesis. This
work was supported by the Austrian Science Fund (FWF): I 3630-B25.'
article_number: '114195'
article_processing_charge: Yes
article_type: original
author:
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
- first_name: Marek
full_name: Randuch, Marek
id: 6ac4636d-15b2-11ec-abd3-fb8df79972ae
last_name: Randuch
- first_name: Ivana
full_name: Matijevic, Ivana
id: 83c17ce3-15b2-11ec-abd3-f486545870bd
last_name: Matijevic
- first_name: Madhumitha
full_name: Narasimhan, Madhumitha
id: 44BF24D0-F248-11E8-B48F-1D18A9856A87
last_name: Narasimhan
orcid: 0000-0002-8600-0671
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Adamowski M, Randuch M, Matijevic I, Narasimhan M, Friml J. SH3Ps recruit auxilin-like
vesicle uncoating factors for clathrin-mediated endocytosis. Cell Reports.
2024;43(5). doi:10.1016/j.celrep.2024.114195
apa: Adamowski, M., Randuch, M., Matijevic, I., Narasimhan, M., & Friml, J.
(2024). SH3Ps recruit auxilin-like vesicle uncoating factors for clathrin-mediated
endocytosis. Cell Reports. Cell Press. https://doi.org/10.1016/j.celrep.2024.114195
chicago: Adamowski, Maciek, Marek Randuch, Ivana Matijevic, Madhumitha Narasimhan,
and Jiří Friml. “SH3Ps Recruit Auxilin-like Vesicle Uncoating Factors for Clathrin-Mediated
Endocytosis.” Cell Reports. Cell Press, 2024. https://doi.org/10.1016/j.celrep.2024.114195.
ieee: M. Adamowski, M. Randuch, I. Matijevic, M. Narasimhan, and J. Friml, “SH3Ps
recruit auxilin-like vesicle uncoating factors for clathrin-mediated endocytosis,”
Cell Reports, vol. 43, no. 5. Cell Press, 2024.
ista: Adamowski M, Randuch M, Matijevic I, Narasimhan M, Friml J. 2024. SH3Ps recruit
auxilin-like vesicle uncoating factors for clathrin-mediated endocytosis. Cell
Reports. 43(5), 114195.
mla: Adamowski, Maciek, et al. “SH3Ps Recruit Auxilin-like Vesicle Uncoating Factors
for Clathrin-Mediated Endocytosis.” Cell Reports, vol. 43, no. 5, 114195,
Cell Press, 2024, doi:10.1016/j.celrep.2024.114195.
short: M. Adamowski, M. Randuch, I. Matijevic, M. Narasimhan, J. Friml, Cell Reports
43 (2024).
corr_author: '1'
date_created: 2024-05-12T22:01:01Z
date_published: 2024-05-28T00:00:00Z
date_updated: 2025-09-08T07:23:07Z
day: '28'
ddc:
- '580'
department:
- _id: JiFr
- _id: MaLo
doi: 10.1016/j.celrep.2024.114195
external_id:
isi:
- '001240362800001'
pmid:
- '38717900'
file:
- access_level: open_access
checksum: a06bb85be4fc765c51554d27ee2da802
content_type: application/pdf
creator: dernst
date_created: 2024-05-13T12:11:22Z
date_updated: 2024-05-13T12:11:22Z
file_id: '15387'
file_name: 2024_CellReports_Adamowski.pdf
file_size: 5698598
relation: main_file
success: 1
file_date_updated: 2024-05-13T12:11:22Z
fulldoi: https://doi.org/10.1016/j.celrep.2024.114195
has_accepted_license: '1'
intvolume: ' 43'
isi: 1
issue: '5'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 26538374-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03630
name: Molecular mechanisms of endocytic cargo recognition in plants
publication: Cell Reports
publication_identifier:
eissn:
- 2211-1247
publication_status: published
publisher: Cell Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: SH3Ps recruit auxilin-like vesicle uncoating factors for clathrin-mediated
endocytosis
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 43
year: '2024'
...
---
_id: '12163'
abstract:
- lang: eng
text: Small GTPases play essential roles in the organization of eukaryotic cells.
In recent years, it has become clear that their intracellular functions result
from intricate biochemical networks of the GTPase and their regulators that dynamically
bind to a membrane surface. Due to the inherent complexities of their interactions,
however, revealing the underlying mechanisms of action is often difficult to achieve
from in vivo studies. This review summarizes in vitro reconstitution approaches
developed to obtain a better mechanistic understanding of how small GTPase activities
are regulated in space and time.
acknowledgement: The authors acknowledge support from IST Austria and helpful comments
from the anonymous reviewers that helped to improve this manuscript. We apologize
to the authors of primary literature and outstanding research not cited here due
to space restraints.
article_processing_charge: Yes (via OA deal)
article_type: review
author:
- first_name: Martin
full_name: Loose, Martin
id: 462D4284-F248-11E8-B48F-1D18A9856A87
last_name: Loose
orcid: 0000-0001-7309-9724
- first_name: Albert
full_name: Auer, Albert
id: 3018E8C2-F248-11E8-B48F-1D18A9856A87
last_name: Auer
orcid: 0000-0002-3580-2906
- first_name: Gabriel
full_name: Brognara, Gabriel
id: D96FFDA0-A884-11E9-9968-DC26E6697425
last_name: Brognara
- first_name: Hanifatul R
full_name: Budiman, Hanifatul R
id: 55380f95-15b2-11ec-abd3-aff8e230696b
last_name: Budiman
- first_name: Lukasz M
full_name: Kowalski, Lukasz M
id: e3a512e2-4bbe-11eb-a68a-e3857a7844c2
last_name: Kowalski
- first_name: Ivana
full_name: Matijevic, Ivana
id: 83c17ce3-15b2-11ec-abd3-f486545870bd
last_name: Matijevic
citation:
ama: Loose M, Auer A, Brognara G, Budiman HR, Kowalski LM, Matijevic I. In vitro
reconstitution of small GTPase regulation. FEBS Letters. 2023;597(6):762-777.
doi:10.1002/1873-3468.14540
apa: Loose, M., Auer, A., Brognara, G., Budiman, H. R., Kowalski, L. M., & Matijevic,
I. (2023). In vitro reconstitution of small GTPase regulation. FEBS Letters.
Wiley. https://doi.org/10.1002/1873-3468.14540
chicago: Loose, Martin, Albert Auer, Gabriel Brognara, Hanifatul R Budiman, Lukasz
M Kowalski, and Ivana Matijevic. “In Vitro Reconstitution of Small GTPase Regulation.”
FEBS Letters. Wiley, 2023. https://doi.org/10.1002/1873-3468.14540.
ieee: M. Loose, A. Auer, G. Brognara, H. R. Budiman, L. M. Kowalski, and I. Matijevic,
“In vitro reconstitution of small GTPase regulation,” FEBS Letters, vol.
597, no. 6. Wiley, pp. 762–777, 2023.
ista: Loose M, Auer A, Brognara G, Budiman HR, Kowalski LM, Matijevic I. 2023. In
vitro reconstitution of small GTPase regulation. FEBS Letters. 597(6), 762–777.
mla: Loose, Martin, et al. “In Vitro Reconstitution of Small GTPase Regulation.”
FEBS Letters, vol. 597, no. 6, Wiley, 2023, pp. 762–77, doi:10.1002/1873-3468.14540.
short: M. Loose, A. Auer, G. Brognara, H.R. Budiman, L.M. Kowalski, I. Matijevic,
FEBS Letters 597 (2023) 762–777.
corr_author: '1'
date_created: 2023-01-12T12:09:58Z
date_published: 2023-03-01T00:00:00Z
date_updated: 2024-10-09T21:03:42Z
day: '01'
ddc:
- '570'
department:
- _id: MaLo
doi: 10.1002/1873-3468.14540
external_id:
isi:
- '000891573000001'
pmid:
- '36448231'
file:
- access_level: open_access
checksum: 7492244d3f9c5faa1347ef03f6e5bc84
content_type: application/pdf
creator: dernst
date_created: 2023-08-16T08:31:04Z
date_updated: 2023-08-16T08:31:04Z
file_id: '14063'
file_name: 2023_FEBSLetters_Loose.pdf
file_size: 3148143
relation: main_file
success: 1
file_date_updated: 2023-08-16T08:31:04Z
fulldoi: https://doi.org/10.1002/1873-3468.14540
has_accepted_license: '1'
intvolume: ' 597'
isi: 1
issue: '6'
keyword:
- Cell Biology
- Genetics
- Molecular Biology
- Biochemistry
- Structural Biology
- Biophysics
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '03'
oa: 1
oa_version: Published Version
page: 762-777
pmid: 1
publication: FEBS Letters
publication_identifier:
eissn:
- 1873-3468
issn:
- 0014-5793
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: In vitro reconstitution of small GTPase regulation
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 597
year: '2023'
...