---
_id: '10945'
abstract:
- lang: eng
  text: Mica-titania pearlescent pigments (MTs) were previously coated with organic
    molecules to obtain combination pigments (CPs) for achieving certain improvements
    or functionalities. Anthocyanins (ACNs) are molecules that can be extracted from
    natural resources and exhibit color changes via pH modifications of the enclosing
    medium. The purpose of the study was to produce a new series of CPs by depositing
    ACNs on MTs at different pH values, to observe the changes in color, and to associate
    these changes to thermogravimetrically determined deposition efficiencies in light
    of spectral differences. The extraction and deposition methods were based on aqueous
    chemistry and were straightforward. The ACN deposition generally increased with
    increasing pH and correlated with the consistency between the charges of the MT
    surfaces and the dominant ACN species at a specific pH value. The fluorescence
    of the CPs was inversely correlated with the deposition quantities invoking the
    possibility of a quenching effect.
acknowledgement: "This research was partly funded by Hacettepe University (Bilimsel
  Ara¸stırma Projeleri\r\nKoordinasyon Birimi), grant number FHD-2015-8094.The authors
  are indebted to Ahmet Önal for his supports in acquiring the fluorescence spectra
  and the decision of excitation wavelengths. The authors also acknowledge use of
  the services and facilities of UNAM-National Nanotechnology Research Center at Bilkent
  University and mica donation from Sabuncular Mining Co."
article_processing_charge: Yes
article_type: original
author:
- first_name: Mehmet Orkun
  full_name: Çoruh, Mehmet Orkun
  id: d25163e5-8d53-11eb-a251-e6dd8ea1b8ef
  last_name: Çoruh
  orcid: 0000-0002-3219-2022
- first_name: Güngör
  full_name: Gündüz, Güngör
  last_name: Gündüz
- first_name: Üner
  full_name: Çolak, Üner
  last_name: Çolak
- first_name: Bora
  full_name: Maviş, Bora
  last_name: Maviş
citation:
  ama: Çoruh MO, Gündüz G, Çolak Ü, Maviş B. pH-dependent coloring of combination
    effect pigments with anthocyanins from Brassica oleracea var. capitata F. rubra.
    <i>Colorants</i>. 2022;1(2):149-164. doi:<a href="https://doi.org/10.3390/colorants1020010">10.3390/colorants1020010</a>
  apa: Çoruh, M. O., Gündüz, G., Çolak, Ü., &#38; Maviş, B. (2022). pH-dependent coloring
    of combination effect pigments with anthocyanins from Brassica oleracea var. capitata
    F. rubra. <i>Colorants</i>. MDPI. <a href="https://doi.org/10.3390/colorants1020010">https://doi.org/10.3390/colorants1020010</a>
  chicago: Çoruh, Mehmet Orkun, Güngör Gündüz, Üner Çolak, and Bora Maviş. “PH-Dependent
    Coloring of Combination Effect Pigments with Anthocyanins from Brassica Oleracea
    Var. Capitata F. Rubra.” <i>Colorants</i>. MDPI, 2022. <a href="https://doi.org/10.3390/colorants1020010">https://doi.org/10.3390/colorants1020010</a>.
  ieee: M. O. Çoruh, G. Gündüz, Ü. Çolak, and B. Maviş, “pH-dependent coloring of
    combination effect pigments with anthocyanins from Brassica oleracea var. capitata
    F. rubra,” <i>Colorants</i>, vol. 1, no. 2. MDPI, pp. 149–164, 2022.
  ista: Çoruh MO, Gündüz G, Çolak Ü, Maviş B. 2022. pH-dependent coloring of combination
    effect pigments with anthocyanins from Brassica oleracea var. capitata F. rubra.
    Colorants. 1(2), 149–164.
  mla: Çoruh, Mehmet Orkun, et al. “PH-Dependent Coloring of Combination Effect Pigments
    with Anthocyanins from Brassica Oleracea Var. Capitata F. Rubra.” <i>Colorants</i>,
    vol. 1, no. 2, MDPI, 2022, pp. 149–64, doi:<a href="https://doi.org/10.3390/colorants1020010">10.3390/colorants1020010</a>.
  short: M.O. Çoruh, G. Gündüz, Ü. Çolak, B. Maviş, Colorants 1 (2022) 149–164.
date_created: 2022-04-04T09:03:54Z
date_published: 2022-04-01T00:00:00Z
date_updated: 2023-08-09T10:12:22Z
day: '01'
ddc:
- '570'
department:
- _id: LeSa
doi: 10.3390/colorants1020010
file:
- access_level: open_access
  checksum: 2c15c8d3041ebc36bc64870247081758
  content_type: application/pdf
  creator: dernst
  date_created: 2022-04-04T10:39:24Z
  date_updated: 2022-04-04T10:39:24Z
  file_id: '10949'
  file_name: 2022_Colorants_Coruh.pdf
  file_size: 2437988
  relation: main_file
  success: 1
file_date_updated: 2022-04-04T10:39:24Z
has_accepted_license: '1'
intvolume: '         1'
issue: '2'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '04'
oa: 1
oa_version: Published Version
page: 149-164
publication: Colorants
publication_identifier:
  issn:
  - 2079-6447
publication_status: published
publisher: MDPI
quality_controlled: '1'
status: public
title: pH-dependent coloring of combination effect pigments with anthocyanins from
  Brassica oleracea var. capitata F. rubra
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: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2022'
...
---
_id: '11648'
abstract:
- lang: eng
  text: 'Progress in structural membrane biology has been significantly accelerated
    by the ongoing ''Resolution Revolution'' in cryo electron microscopy (cryo-EM).
    In particular, structure determination by single particle analysis has evolved
    into the most powerful method for atomic model building of multisubunit membrane
    protein complexes. This has created an ever increasing demand in cryo-EM machine
    time, which to satisfy is in need of new and affordable cryo electron microscopes.
    Here, we review our experience in using the JEOL CRYO ARM 200 prototype for the
    structure determination by single particle analysis of three different multisubunit
    membrane complexes: the Thermus thermophilus V-type ATPase VO complex, the Thermosynechococcus
    elongatus photosystem I monomer and the flagellar motor LP-ring from Salmonella
    enterica.'
acknowledgement: "Cyclic Innovation for Clinical Empowerment (JP17pc0101020 from Japan
  Agency for Medical Research and Development (AMED) to K.N. and G.K.); Platform Project
  for Supporting Drug Discovery and Life Science Research (Basis for Supporting Innovative
  Drug Discovery and Life Science Research) from AMED (JP20am0101117 to K.N., JP16K07266
  to Atsunori Oshima and C.G., JP22ama121001j0001 to Masaki Yamamoto, G.K., T.K. and
  C.G.); a JSPS KAHKENHI\r\ngrant (20K06514 to J.K.) and a Grant-in-aid for JSPS fellows
  (20J00162 to A.N.).\r\nWe are grateful for initiation and scientific support from
  Matthias Rogner, Marc M. Nowaczyk, Anna Frank and ̈Yuko Misumi for the PSI monomer
  project and also would like to thank Hideki Shigematsu for critical reading of the
  manuscript. And we are indebted to the two anonymous reviewers who helped us to
  improve our manuscript."
article_processing_charge: No
article_type: original
author:
- first_name: Christoph
  full_name: Gerle, Christoph
  last_name: Gerle
- first_name: Jun-ichi
  full_name: Kishikawa, Jun-ichi
  last_name: Kishikawa
- first_name: Tomoko
  full_name: Yamaguchi, Tomoko
  last_name: Yamaguchi
- first_name: Atsuko
  full_name: Nakanishi, Atsuko
  last_name: Nakanishi
- first_name: Mehmet Orkun
  full_name: Çoruh, Mehmet Orkun
  id: d25163e5-8d53-11eb-a251-e6dd8ea1b8ef
  last_name: Çoruh
  orcid: 0000-0002-3219-2022
- first_name: Fumiaki
  full_name: Makino, Fumiaki
  last_name: Makino
- first_name: Tomoko
  full_name: Miyata, Tomoko
  last_name: Miyata
- first_name: Akihiro
  full_name: Kawamoto, Akihiro
  last_name: Kawamoto
- first_name: Ken
  full_name: Yokoyama, Ken
  last_name: Yokoyama
- first_name: Keiichi
  full_name: Namba, Keiichi
  last_name: Namba
- first_name: Genji
  full_name: Kurisu, Genji
  last_name: Kurisu
- first_name: Takayuki
  full_name: Kato, Takayuki
  last_name: Kato
citation:
  ama: Gerle C, Kishikawa J, Yamaguchi T, et al. Structures of multisubunit membrane
    complexes with the CRYO ARM 200. <i>Microscopy</i>. 2022;71(5):249-261. doi:<a
    href="https://doi.org/10.1093/jmicro/dfac037">10.1093/jmicro/dfac037</a>
  apa: Gerle, C., Kishikawa, J., Yamaguchi, T., Nakanishi, A., Çoruh, M. O., Makino,
    F., … Kato, T. (2022). Structures of multisubunit membrane complexes with the
    CRYO ARM 200. <i>Microscopy</i>. Oxford University Press. <a href="https://doi.org/10.1093/jmicro/dfac037">https://doi.org/10.1093/jmicro/dfac037</a>
  chicago: Gerle, Christoph, Jun-ichi Kishikawa, Tomoko Yamaguchi, Atsuko Nakanishi,
    Mehmet Orkun Çoruh, Fumiaki Makino, Tomoko Miyata, et al. “Structures of Multisubunit
    Membrane Complexes with the CRYO ARM 200.” <i>Microscopy</i>. Oxford University
    Press, 2022. <a href="https://doi.org/10.1093/jmicro/dfac037">https://doi.org/10.1093/jmicro/dfac037</a>.
  ieee: C. Gerle <i>et al.</i>, “Structures of multisubunit membrane complexes with
    the CRYO ARM 200,” <i>Microscopy</i>, vol. 71, no. 5. Oxford University Press,
    pp. 249–261, 2022.
  ista: Gerle C, Kishikawa J, Yamaguchi T, Nakanishi A, Çoruh MO, Makino F, Miyata
    T, Kawamoto A, Yokoyama K, Namba K, Kurisu G, Kato T. 2022. Structures of multisubunit
    membrane complexes with the CRYO ARM 200. Microscopy. 71(5), 249–261.
  mla: Gerle, Christoph, et al. “Structures of Multisubunit Membrane Complexes with
    the CRYO ARM 200.” <i>Microscopy</i>, vol. 71, no. 5, Oxford University Press,
    2022, pp. 249–61, doi:<a href="https://doi.org/10.1093/jmicro/dfac037">10.1093/jmicro/dfac037</a>.
  short: C. Gerle, J. Kishikawa, T. Yamaguchi, A. Nakanishi, M.O. Çoruh, F. Makino,
    T. Miyata, A. Kawamoto, K. Yokoyama, K. Namba, G. Kurisu, T. Kato, Microscopy
    71 (2022) 249–261.
date_created: 2022-07-25T10:04:58Z
date_published: 2022-10-01T00:00:00Z
date_updated: 2023-08-03T12:13:37Z
day: '01'
ddc:
- '570'
department:
- _id: LeSa
doi: 10.1093/jmicro/dfac037
external_id:
  isi:
  - '000837950900001'
  pmid:
  - '35861182'
file:
- access_level: open_access
  checksum: 23b51c163636bf9313f7f0818312e67e
  content_type: application/pdf
  creator: dernst
  date_created: 2023-02-03T08:34:48Z
  date_updated: 2023-02-03T08:34:48Z
  file_id: '12498'
  file_name: 2022_Microscopy_Gerle.pdf
  file_size: 7812696
  relation: main_file
  success: 1
file_date_updated: 2023-02-03T08:34:48Z
has_accepted_license: '1'
intvolume: '        71'
isi: 1
issue: '5'
keyword:
- Radiology
- Nuclear Medicine and imaging
- Instrumentation
- Structural Biology
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 249-261
pmid: 1
publication: Microscopy
publication_identifier:
  eissn:
  - 2050-5701
  issn:
  - 2050-5698
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Structures of multisubunit membrane complexes with the CRYO ARM 200
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 71
year: '2022'
...
---
_id: '10310'
abstract:
- lang: eng
  text: A high-resolution structure of trimeric cyanobacterial Photosystem I (PSI)
    from Thermosynechococcus elongatus was reported as the first atomic model of PSI
    almost 20 years ago. However, the monomeric PSI structure has not yet been reported
    despite long-standing interest in its structure and extensive spectroscopic characterization
    of the loss of red chlorophylls upon monomerization. Here, we describe the structure
    of monomeric PSI from Thermosynechococcus elongatus BP-1. Comparison with the
    trimer structure gave detailed insights into monomerization-induced changes in
    both the central trimerization domain and the peripheral regions of the complex.
    Monomerization-induced loss of red chlorophylls is assigned to a cluster of chlorophylls
    adjacent to PsaX. Based on our findings, we propose a role of PsaX in the stabilization
    of red chlorophylls and that lipids of the surrounding membrane present a major
    source of thermal energy for uphill excitation energy transfer from red chlorophylls
    to P700.
acknowledgement: We are grateful for additional support and valuable scientific input
  for this project by Yuko Misumi, Jiannan Li, Hisako Kubota-Kawai, Takeshi Kawabata,
  Mian Wu, Eiki Yamashita, Atsushi Nakagawa, Volker Hartmann, Melanie Völkel and Matthias
  Rögner. Parts of this research were funded by the German Research Council (DFG)
  within the framework of GRK 2341 (Microbial Substrate Conversion) to M.M.N., the
  Platform Project for Supporting Drug Discovery and Life Science Research [Basis
  for Supporting Innovative Drug Discovery and Life Science Research (BINDS)] from
  AMED under grant number JP20am0101117 (K.N.), JP16K07266 to Atsunori Oshima and
  C.G., a Grants-in-Aid for Scientific Research under grant number JP 25000013 (K.N.),
  17H03647 (C.G.) and 16H06560 (G.K.) from MEXT-KAKENHI, the International Joint Research
  Promotion Program from Osaka University to M.M.N., C.G. and G.K., and the Cyclic
  Innovation for Clinical Empowerment (CiCLE) Grant Number JP17pc0101020 from AMED
  to K.N. and G.K.
article_number: '304'
article_processing_charge: No
article_type: original
author:
- first_name: Mehmet Orkun
  full_name: Çoruh, Mehmet Orkun
  id: d25163e5-8d53-11eb-a251-e6dd8ea1b8ef
  last_name: Çoruh
  orcid: 0000-0002-3219-2022
- first_name: Anna
  full_name: Frank, Anna
  last_name: Frank
- first_name: Hideaki
  full_name: Tanaka, Hideaki
  last_name: Tanaka
- first_name: Akihiro
  full_name: Kawamoto, Akihiro
  last_name: Kawamoto
- first_name: Eithar
  full_name: El-Mohsnawy, Eithar
  last_name: El-Mohsnawy
- first_name: Takayuki
  full_name: Kato, Takayuki
  last_name: Kato
- first_name: Keiichi
  full_name: Namba, Keiichi
  last_name: Namba
- first_name: Christoph
  full_name: Gerle, Christoph
  last_name: Gerle
- first_name: Marc M.
  full_name: Nowaczyk, Marc M.
  last_name: Nowaczyk
- first_name: Genji
  full_name: Kurisu, Genji
  last_name: Kurisu
citation:
  ama: Çoruh MO, Frank A, Tanaka H, et al. Cryo-EM structure of a functional monomeric
    Photosystem I from Thermosynechococcus elongatus reveals red chlorophyll cluster.
    <i>Communications Biology</i>. 2021;4(1). doi:<a href="https://doi.org/10.1038/s42003-021-01808-9">10.1038/s42003-021-01808-9</a>
  apa: Çoruh, M. O., Frank, A., Tanaka, H., Kawamoto, A., El-Mohsnawy, E., Kato, T.,
    … Kurisu, G. (2021). Cryo-EM structure of a functional monomeric Photosystem I
    from Thermosynechococcus elongatus reveals red chlorophyll cluster. <i>Communications
    Biology</i>. Springer . <a href="https://doi.org/10.1038/s42003-021-01808-9">https://doi.org/10.1038/s42003-021-01808-9</a>
  chicago: Çoruh, Mehmet Orkun, Anna Frank, Hideaki Tanaka, Akihiro Kawamoto, Eithar
    El-Mohsnawy, Takayuki Kato, Keiichi Namba, Christoph Gerle, Marc M. Nowaczyk,
    and Genji Kurisu. “Cryo-EM Structure of a Functional Monomeric Photosystem I from
    Thermosynechococcus Elongatus Reveals Red Chlorophyll Cluster.” <i>Communications
    Biology</i>. Springer , 2021. <a href="https://doi.org/10.1038/s42003-021-01808-9">https://doi.org/10.1038/s42003-021-01808-9</a>.
  ieee: M. O. Çoruh <i>et al.</i>, “Cryo-EM structure of a functional monomeric Photosystem
    I from Thermosynechococcus elongatus reveals red chlorophyll cluster,” <i>Communications
    Biology</i>, vol. 4, no. 1. Springer , 2021.
  ista: Çoruh MO, Frank A, Tanaka H, Kawamoto A, El-Mohsnawy E, Kato T, Namba K, Gerle
    C, Nowaczyk MM, Kurisu G. 2021. Cryo-EM structure of a functional monomeric Photosystem
    I from Thermosynechococcus elongatus reveals red chlorophyll cluster. Communications
    Biology. 4(1), 304.
  mla: Çoruh, Mehmet Orkun, et al. “Cryo-EM Structure of a Functional Monomeric Photosystem
    I from Thermosynechococcus Elongatus Reveals Red Chlorophyll Cluster.” <i>Communications
    Biology</i>, vol. 4, no. 1, 304, Springer , 2021, doi:<a href="https://doi.org/10.1038/s42003-021-01808-9">10.1038/s42003-021-01808-9</a>.
  short: M.O. Çoruh, A. Frank, H. Tanaka, A. Kawamoto, E. El-Mohsnawy, T. Kato, K.
    Namba, C. Gerle, M.M. Nowaczyk, G. Kurisu, Communications Biology 4 (2021).
date_created: 2021-11-19T11:37:29Z
date_published: 2021-03-08T00:00:00Z
date_updated: 2023-08-14T11:51:19Z
day: '08'
ddc:
- '570'
department:
- _id: LeSa
doi: 10.1038/s42003-021-01808-9
external_id:
  isi:
  - '000627440700001'
  pmid:
  - '33686186'
file:
- access_level: open_access
  checksum: 8ffd39f2bba7152a2441802ff313bf0b
  content_type: application/pdf
  creator: cchlebak
  date_created: 2021-11-19T15:09:18Z
  date_updated: 2021-11-19T15:09:18Z
  file_id: '10318'
  file_name: 2021_CommBio_Çoruh.pdf
  file_size: 6030261
  relation: main_file
  success: 1
file_date_updated: 2021-11-19T15:09:18Z
has_accepted_license: '1'
intvolume: '         4'
isi: 1
issue: '1'
keyword:
- general agricultural and biological Sciences
- general biochemistry
- genetics and molecular biology
- medicine (miscellaneous)
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
publication: Communications Biology
publication_identifier:
  issn:
  - 2399-3642
publication_status: published
publisher: 'Springer '
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cryo-EM structure of a functional monomeric Photosystem I from Thermosynechococcus
  elongatus reveals red chlorophyll cluster
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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 4
year: '2021'
...