Mechanistic reappraisal of early stage photochemistry in the light-driven enzyme protochlorophyllide oxidoreductase
The light-driven enzyme protochlorophyllide oxidoreductase (POR) catalyzes the reduction of protochlorophyllide (Pchlide) to chlorophyllide (Chlide). This reaction is a key step in the biosynthesis of chlorophyll. Ultrafast photochemical processes within the Pchlide molecule are required for catalys...
Saved in:
Published in | PloS one Vol. 7; no. 9; p. e45642 |
---|---|
Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
United States
Public Library of Science
26.09.2012
Public Library of Science (PLoS) |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Abstract | The light-driven enzyme protochlorophyllide oxidoreductase (POR) catalyzes the reduction of protochlorophyllide (Pchlide) to chlorophyllide (Chlide). This reaction is a key step in the biosynthesis of chlorophyll. Ultrafast photochemical processes within the Pchlide molecule are required for catalysis and previous studies have suggested that a short-lived excited-state species, known as I675*, is the first catalytic intermediate in the reaction and is essential for capturing excitation energy to drive subsequent hydride and proton transfers. The chemical nature of the I675* excited state species and its role in catalysis are not known. Here, we report time-resolved pump-probe spectroscopy measurements to study the involvement of the I675* intermediate in POR photochemistry. We show that I675* is not unique to the POR-catalyzed photoreduction of Pchlide as it is also formed in the absence of the POR enzyme. The I675* species is only produced in samples that contain both Pchlide substrate and Chlide product and its formation is dependent on the pump excitation wavelength. The rate of formation and the quantum yield is maximized in 50∶50 mixtures of the two pigments (Pchlide and Chlide) and is caused by direct energy transfer between Pchlide and neighboring Chlide molecules, which is inhibited in the polar solvent methanol. Consequently, we have re-evaluated the mechanism for early stage photochemistry in the light-driven reduction of Pchlide and propose that I675* represents an excited state species formed in Pchlide-Chlide dimers, possibly an excimer. Contrary to previous reports, we conclude that this excited state species has no direct mechanistic relevance to the POR-catalyzed reduction of Pchlide. |
---|---|
AbstractList | The light-driven enzyme protochlorophyllide oxidoreductase (POR) catalyzes the reduction of protochlorophyllide (Pchlide) to chlorophyllide (Chlide). This reaction is a key step in the biosynthesis of chlorophyll. Ultrafast photochemical processes within the Pchlide molecule are required for catalysis and previous studies have suggested that a short-lived excited-state species, known as I675*, is the first catalytic intermediate in the reaction and is essential for capturing excitation energy to drive subsequent hydride and proton transfers. The chemical nature of the I675* excited state species and its role in catalysis are not known. Here, we report time-resolved pump-probe spectroscopy measurements to study the involvement of the I675* intermediate in POR photochemistry. We show that I675* is not unique to the POR-catalyzed photoreduction of Pchlide as it is also formed in the absence of the POR enzyme. The I675* species is only produced in samples that contain both Pchlide substrate and Chlide product and its formation is dependent on the pump excitation wavelength. The rate of formation and the quantum yield is maximized in 50∶50 mixtures of the two pigments (Pchlide and Chlide) and is caused by direct energy transfer between Pchlide and neighboring Chlide molecules, which is inhibited in the polar solvent methanol. Consequently, we have re-evaluated the mechanism for early stage photochemistry in the light-driven reduction of Pchlide and propose that I675* represents an excited state species formed in Pchlide-Chlide dimers, possibly an excimer. Contrary to previous reports, we conclude that this excited state species has no direct mechanistic relevance to the POR-catalyzed reduction of Pchlide. The light-driven enzyme protochlorophyllide oxidoreductase (POR) catalyzes the reduction of protochlorophyllide (Pchlide) to chlorophyllide (Chlide). This reaction is a key step in the biosynthesis of chlorophyll. Ultrafast photochemical processes within the Pchlide molecule are required for catalysis and previous studies have suggested that a short-lived excited-state species, known as I675*, is the first catalytic intermediate in the reaction and is essential for capturing excitation energy to drive subsequent hydride and proton transfers. The chemical nature of the I675* excited state species and its role in catalysis are not known. Here, we report time-resolved pump-probe spectroscopy measurements to study the involvement of the I675* intermediate in POR photochemistry. We show that I675* is not unique to the POR-catalyzed photoreduction of Pchlide as it is also formed in the absence of the POR enzyme. The I675* species is only produced in samples that contain both Pchlide substrate and Chlide product and its formation is dependent on the pump excitation wavelength. The rate of formation and the quantum yield is maximized in 50:50 mixtures of the two pigments (Pchlide and Chlide) and is caused by direct energy transfer between Pchlide and neighboring Chlide molecules, which is inhibited in the polar solvent methanol. Consequently, we have re-evaluated the mechanism for early stage photochemistry in the light-driven reduction of Pchlide and propose that I675* represents an excited state species formed in Pchlide-Chlide dimers, possibly an excimer. Contrary to previous reports, we conclude that this excited state species has no direct mechanistic relevance to the POR-catalyzed reduction of Pchlide. |
Audience | Academic |
Author | Mansell, David Heyes, Derren J Scrutton, Nigel S Hardman, Samantha J O Gardiner, John M |
AuthorAffiliation | University of Hyderabad, India Manchester Institute of Biotechnology and Photon Science Institute, University of Manchester, Manchester, United Kingdom |
AuthorAffiliation_xml | – name: Manchester Institute of Biotechnology and Photon Science Institute, University of Manchester, Manchester, United Kingdom – name: University of Hyderabad, India |
Author_xml | – sequence: 1 givenname: Derren J surname: Heyes fullname: Heyes, Derren J email: derren.heyes@manchester.ac.uk organization: Manchester Institute of Biotechnology and Photon Science Institute, University of Manchester, Manchester, United Kingdom. derren.heyes@manchester.ac.uk – sequence: 2 givenname: Samantha J O surname: Hardman fullname: Hardman, Samantha J O – sequence: 3 givenname: David surname: Mansell fullname: Mansell, David – sequence: 4 givenname: John M surname: Gardiner fullname: Gardiner, John M – sequence: 5 givenname: Nigel S surname: Scrutton fullname: Scrutton, Nigel S |
BackLink | https://www.ncbi.nlm.nih.gov/pubmed/23049830$$D View this record in MEDLINE/PubMed |
BookMark | eNqNk9tqGzEQhpeS0hzaNyjtQqG0F3Z1Wnn3phBCD4aUQE-3YiyNvTLyaiNpQ9ynrxw7wS65KLqQGH3zS_pHc1ocdb7DonhJyZjyCf2w9EPowI37HB4TIiop2JPihDacjSQj_GhvfVycxrgkpOK1lM-KY8aJaGpOTor4DXULnY3J6jIg9H0AG8GVfl4iBLcuY4IFln3rk9ctrjIZ1qXtytRi6eyiTSMT7A12JXZ_1qtMhjvS-eD7du2cNVj6W2t8QDPoBBGfF0_n4CK-2M1nxa_Pn35efB1dXn2ZXpxfjrRsWBo1ZKIbYzQhspK1ntWCgGE1F2BQUphRDlzzRlODrKHAuRGaCdQ1RTKRjeRnxeutbu98VDu_oqKcyaqijawzMd0SxsNS9cGuIKyVB6vuAj4sFITsjENF2UybCU40GBANaBBSazS8mlS8ElpnrY-704bZCo3GLgVwB6KHO51t1cLfKC6qum5EFni3Ewj-esCYVDZbo3PQoR_yvUlT1ZRxtrn3m3_Qx1-3oxaQH2C7uc_n6o2oOs_lZxUV9YYaP0LlYXKxdf5cc5vjBwnvDxIyk_A2LWCIUU1_fP9_9ur3Ift2j20RXGqjd0OyvouHoNiCOvgYA84fTKZEbXrj3g216Q21642c9mq_QA9J983A_wJzEw7B |
CitedBy_id | crossref_primary_10_1021_acscatal_1c05351 crossref_primary_10_1021_acs_jpcb_8b04231 crossref_primary_10_1021_acs_jpclett_7b00200 crossref_primary_10_1111_febs_15542 crossref_primary_10_1021_acs_biochem_5b01355 crossref_primary_10_1002_ange_201409881 crossref_primary_10_1016_j_jphotobiol_2016_05_029 crossref_primary_10_1021_acs_jpcb_7b00528 crossref_primary_10_1038_s41477_021_00866_5 crossref_primary_10_1002_anie_201409881 crossref_primary_10_1021_acs_jpcb_9b06608 crossref_primary_10_1080_0144235X_2016_1148450 |
ContentType | Journal Article |
Copyright | COPYRIGHT 2012 Public Library of Science Heyes et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. 2012 Heyes et al 2012 Heyes et al |
Copyright_xml | – notice: COPYRIGHT 2012 Public Library of Science – notice: Heyes et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. – notice: 2012 Heyes et al 2012 Heyes et al |
DBID | CGR CUY CVF ECM EIF NPM AAYXX CITATION IOV ISR 3V. 7QG 7QL 7QO 7RV 7SN 7SS 7T5 7TG 7TM 7U9 7X2 7X7 7XB 88E 8AO 8C1 8FD 8FE 8FG 8FH 8FI 8FJ 8FK ABJCF ABUWG AFKRA ARAPS ATCPS AZQEC BBNVY BENPR BGLVJ BHPHI C1K CCPQU D1I DWQXO FR3 FYUFA GHDGH GNUQQ H94 HCIFZ K9. KB. KB0 KL. L6V LK8 M0K M0S M1P M7N M7P M7S NAPCQ P5Z P62 P64 PATMY PDBOC PIMPY PQEST PQQKQ PQUKI PRINS PTHSS PYCSY RC3 7X8 5PM DOA |
DOI | 10.1371/journal.pone.0045642 |
DatabaseName | Medline MEDLINE MEDLINE (Ovid) MEDLINE MEDLINE PubMed CrossRef Gale In Context: Opposing Viewpoints Science in Context ProQuest Central (Corporate) Animal Behavior Abstracts Bacteriology Abstracts (Microbiology B) Biotechnology Research Abstracts Nursing & Allied Health Database (ProQuest) Ecology Abstracts Entomology Abstracts (Full archive) Immunology Abstracts Meteorological & Geoastrophysical Abstracts Nucleic Acids Abstracts Virology and AIDS Abstracts Agricultural Science Collection Health & Medical Collection ProQuest Central (purchase pre-March 2016) Medical Database (Alumni Edition) ProQuest Pharma Collection Public Health Database (Proquest) Technology Research Database ProQuest SciTech Collection ProQuest Technology Collection ProQuest Natural Science Collection Hospital Premium Collection Hospital Premium Collection (Alumni Edition) ProQuest Central (Alumni) (purchase pre-March 2016) Materials Science & Engineering Collection ProQuest Central (Alumni) ProQuest Central Advanced Technologies & Aerospace Collection Agricultural & Environmental Science Collection ProQuest Central Essentials Biological Science Collection ProQuest Central Technology Collection Natural Science Collection Environmental Sciences and Pollution Management ProQuest One Community College ProQuest Materials Science Collection ProQuest Central Korea Engineering Research Database Health Research Premium Collection Health Research Premium Collection (Alumni) ProQuest Central Student AIDS and Cancer Research Abstracts SciTech Premium Collection ProQuest Health & Medical Complete (Alumni) Materials Science Database Nursing & Allied Health Database (Alumni Edition) Meteorological & Geoastrophysical Abstracts - Academic ProQuest Engineering Collection Biological Sciences Agricultural Science Database Health & Medical Collection (Alumni Edition) PML(ProQuest Medical Library) Algology Mycology and Protozoology Abstracts (Microbiology C) Biological Science Database Engineering Database Nursing & Allied Health Premium Advanced Technologies & Aerospace Database ProQuest Advanced Technologies & Aerospace Collection Biotechnology and BioEngineering Abstracts Environmental Science Database Materials Science Collection Publicly Available Content Database ProQuest One Academic Eastern Edition (DO NOT USE) ProQuest One Academic ProQuest One Academic UKI Edition ProQuest Central China Engineering Collection Environmental Science Collection Genetics Abstracts MEDLINE - Academic PubMed Central (Full Participant titles) DOAJ Directory of Open Access Journals |
DatabaseTitle | MEDLINE Medline Complete MEDLINE with Full Text PubMed MEDLINE (Ovid) CrossRef Agricultural Science Database Publicly Available Content Database ProQuest Central Student ProQuest Advanced Technologies & Aerospace Collection ProQuest Central Essentials Nucleic Acids Abstracts SciTech Premium Collection ProQuest Central China Environmental Sciences and Pollution Management Health Research Premium Collection Meteorological & Geoastrophysical Abstracts Natural Science Collection Biological Science Collection ProQuest Medical Library (Alumni) Engineering Collection Advanced Technologies & Aerospace Collection Engineering Database Virology and AIDS Abstracts ProQuest Biological Science Collection ProQuest One Academic Eastern Edition Agricultural Science Collection ProQuest Hospital Collection ProQuest Technology Collection Health Research Premium Collection (Alumni) Biological Science Database Ecology Abstracts ProQuest Hospital Collection (Alumni) Biotechnology and BioEngineering Abstracts Environmental Science Collection Entomology Abstracts Nursing & Allied Health Premium ProQuest Health & Medical Complete ProQuest One Academic UKI Edition Environmental Science Database ProQuest Nursing & Allied Health Source (Alumni) Engineering Research Database ProQuest One Academic Meteorological & Geoastrophysical Abstracts - Academic Technology Collection Technology Research Database Materials Science Collection ProQuest Health & Medical Complete (Alumni) ProQuest Central (Alumni Edition) ProQuest One Community College ProQuest Natural Science Collection ProQuest Pharma Collection ProQuest Central Genetics Abstracts ProQuest Engineering Collection Biotechnology Research Abstracts Health and Medicine Complete (Alumni Edition) ProQuest Central Korea Bacteriology Abstracts (Microbiology B) Algology Mycology and Protozoology Abstracts (Microbiology C) Agricultural & Environmental Science Collection AIDS and Cancer Research Abstracts Materials Science Database ProQuest Materials Science Collection ProQuest Public Health ProQuest Nursing & Allied Health Source ProQuest SciTech Collection Advanced Technologies & Aerospace Database ProQuest Medical Library Animal Behavior Abstracts Materials Science & Engineering Collection Immunology Abstracts ProQuest Central (Alumni) MEDLINE - Academic |
DatabaseTitleList | Agricultural Science Database MEDLINE |
Database_xml | – sequence: 1 dbid: DOA name: Directory of Open Access Journals url: https://www.doaj.org/ sourceTypes: Open Website – sequence: 2 dbid: NPM name: PubMed url: https://proxy.k.utb.cz/login?url=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed sourceTypes: Index Database – sequence: 3 dbid: EIF name: MEDLINE url: https://proxy.k.utb.cz/login?url=https://www.webofscience.com/wos/medline/basic-search sourceTypes: Index Database – sequence: 4 dbid: 8FG name: ProQuest Technology Collection url: https://search.proquest.com/technologycollection1 sourceTypes: Aggregation Database |
DeliveryMethod | fulltext_linktorsrc |
Discipline | Sciences (General) Chemistry Biology |
DocumentTitleAlternate | Protochlorophyllide Oxidoreductase Photochemistry |
EISSN | 1932-6203 |
Editor | Subramanyam, Rajagopal |
Editor_xml | – sequence: 1 givenname: Rajagopal surname: Subramanyam fullname: Subramanyam, Rajagopal |
EndPage | e45642 |
ExternalDocumentID | 1326551968 oai_doaj_org_article_12bcd7e7cada49aca46cced3575354cc 2943685291 A498251488 10_1371_journal_pone_0045642 23049830 |
Genre | Research Support, Non-U.S. Gov't Journal Article |
GeographicLocations | United Kingdom--UK |
GeographicLocations_xml | – name: United Kingdom--UK |
GrantInformation_xml | – fundername: Biotechnology and Biological Sciences Research Council grantid: BB/F000537/1 |
GroupedDBID | --- 123 29O 2WC 3V. 53G 5VS 7RV 7X2 7X7 7XC 88E 8AO 8C1 8CJ 8FE 8FG 8FH 8FI 8FJ A8Z AAFWJ ABDBF ABIVO ABJCF ABUWG ACGFO ACIHN ACIWK ACPRK ADBBV ADRAZ AEAQA AENEX AFKRA AFRAH AHMBA ALIPV ALMA_UNASSIGNED_HOLDINGS AOIJS APEBS ARAPS ATCPS BAWUL BBNVY BBORY BCNDV BENPR BGLVJ BHPHI BKEYQ BPHCQ BVXVI BWKFM CCPQU CGR CS3 CUY CVF D1I D1J D1K DIK DU5 E3Z EAP EAS EBD ECM EIF EMOBN ESTFP ESX EX3 F5P FPL FYUFA GROUPED_DOAJ GX1 HCIFZ HH5 HMCUK HYE IAO IEA IHR IHW INH INR IOV IPNFZ IPY ISE ISR ITC K6- KB. KQ8 L6V LK5 LK8 M0K M1P M48 M7P M7R M7S M~E NAPCQ NPM O5R O5S OK1 P2P P62 PATMY PDBOC PIMPY PQQKQ PROAC PSQYO PTHSS PV9 PYCSY RIG RNS RPM RZL SV3 TR2 UKHRP WOQ WOW ~02 ~KM AAYXX CITATION AFPKN 7QG 7QL 7QO 7SN 7SS 7T5 7TG 7TM 7U9 7XB 8FD 8FK AZQEC C1K DWQXO FR3 GNUQQ H94 K9. KL. M7N P64 PQEST PQUKI PRINS RC3 7X8 5PM - 02 AAPBV ABPTK ADACO BBAFP KM |
ID | FETCH-LOGICAL-c692t-907c9ddc006568cb840ad2834ade61ab13a3c39c1de291a33d4c24ec81e076963 |
IEDL.DBID | RPM |
ISSN | 1932-6203 |
IngestDate | Fri Nov 26 17:12:26 EST 2021 Tue Oct 22 15:14:39 EDT 2024 Tue Sep 17 21:05:32 EDT 2024 Fri Oct 25 06:24:40 EDT 2024 Thu Oct 10 16:39:35 EDT 2024 Tue Nov 19 20:39:46 EST 2024 Tue Nov 12 22:47:39 EST 2024 Thu Aug 01 20:36:43 EDT 2024 Thu Aug 01 20:05:30 EDT 2024 Tue Aug 20 22:14:04 EDT 2024 Thu Nov 21 21:06:26 EST 2024 Tue Oct 15 23:45:55 EDT 2024 |
IsDoiOpenAccess | true |
IsOpenAccess | true |
IsPeerReviewed | true |
IsScholarly | true |
Issue | 9 |
Language | English |
License | This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. Creative Commons Attribution License |
LinkModel | DirectLink |
MergedId | FETCHMERGED-LOGICAL-c692t-907c9ddc006568cb840ad2834ade61ab13a3c39c1de291a33d4c24ec81e076963 |
Notes | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 Competing Interests: The authors have declared that no competing interests exist. Conceived and designed the experiments: DJH NSS. Performed the experiments: DJH DM JMG SJOH. Analyzed the data: DJH NSS SJOH. Wrote the paper: DJH SJOH DM JMG NSS. |
OpenAccessLink | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3458894/ |
PMID | 23049830 |
PQID | 1326551968 |
PQPubID | 1436336 |
PageCount | e45642 |
ParticipantIDs | plos_journals_1326551968 doaj_primary_oai_doaj_org_article_12bcd7e7cada49aca46cced3575354cc pubmedcentral_primary_oai_pubmedcentral_nih_gov_3458894 proquest_miscellaneous_1095812328 proquest_journals_1326551968 gale_infotracmisc_A498251488 gale_infotracacademiconefile_A498251488 gale_incontextgauss_ISR_A498251488 gale_incontextgauss_IOV_A498251488 gale_healthsolutions_A498251488 crossref_primary_10_1371_journal_pone_0045642 pubmed_primary_23049830 |
PublicationCentury | 2000 |
PublicationDate | 2012-09-26 |
PublicationDateYYYYMMDD | 2012-09-26 |
PublicationDate_xml | – month: 09 year: 2012 text: 2012-09-26 day: 26 |
PublicationDecade | 2010 |
PublicationPlace | United States |
PublicationPlace_xml | – name: United States – name: San Francisco – name: San Francisco, USA |
PublicationTitle | PloS one |
PublicationTitleAlternate | PLoS One |
PublicationYear | 2012 |
Publisher | Public Library of Science Public Library of Science (PLoS) |
Publisher_xml | – name: Public Library of Science – name: Public Library of Science (PLoS) |
References | 15209523 - Biochemistry. 2004 Jun 29;43(25):8265-71 19373814 - Angew Chem Int Ed Engl. 2009;48(21):3850-3 12177453 - Proc Natl Acad Sci U S A. 2002 Aug 20;99(17):11145-50 9003179 - Biochemistry. 1997 Jan 14;36(2):281-7 16592367 - Proc Natl Acad Sci U S A. 1976 Dec;73(12):4282-6 9398254 - Biochemistry. 1997 Dec 9;36(49):15262-8 16182531 - Trends Biochem Sci. 2005 Nov;30(11):642-9 19073603 - J Biol Chem. 2009 Feb 6;284(6):3762-7 20205376 - J Phys Chem B. 2010 Apr 1;114(12):4335-44 19439417 - J Biol Chem. 2009 Jul 3;284(27):18160-6 22419074 - Phys Chem Chem Phys. 2012 Jul 7;14(25):8818-24 12730687 - Nat Struct Biol. 2003 Jun;10(6):491-2 16328844 - Photosynth Res. 2004;81(1):1-29 17848549 - J Biol Chem. 2007 Nov 2;282(44):32015-20 21317291 - J Biol Chem. 2011 Apr 1;286(13):11849-54 19254549 - Biophys J. 2009 Mar 4;96(5):1902-10 16658271 - Plant Physiol. 1973 Jan;51(1):115-9 16509741 - J Phys Chem B. 2006 Mar 9;110(9):4399-406 18855967 - Chemphyschem. 2009 Jan 12;10(1):144-50 22121506 - Phys Chem Chem Phys. 2012 Jan 14;14(2):616-25 16867988 - J Biol Chem. 2006 Sep 15;281(37):26847-53 21925479 - Anal Biochem. 2011 Dec 15;419(2):271-6 19092933 - Nature. 2008 Dec 18;456(7224):1001-4 17827245 - Biophys J. 2008 Jan 1;94(1):38-46 16841352 - Chemphyschem. 2006 Aug 11;7(8):1727-33 4842005 - Biochim Biophys Acta. 1974 Jun 28;347(3):383-94 12668459 - Biophys J. 2003 Apr;84(4):2508-16 12054938 - J Org Chem. 2002 Jun 14;67(12):4055-61 5047133 - Biochim Biophys Acta. 1972 Jun 23;267(3):498-511 |
References_xml | |
SSID | ssj0053866 |
Score | 2.1941092 |
Snippet | The light-driven enzyme protochlorophyllide oxidoreductase (POR) catalyzes the reduction of protochlorophyllide (Pchlide) to chlorophyllide (Chlide). This... |
SourceID | plos doaj pubmedcentral proquest gale crossref pubmed |
SourceType | Open Website Open Access Repository Aggregation Database Index Database |
StartPage | e45642 |
SubjectTerms | Biochemistry Biology Biosynthesis Biotechnology Buffers Catalysis Chemistry Chlorophyll Dimerization Dimers Energy transfer Enzymes Escherichia coli - metabolism Excitation Health aspects Lasers Light NADP - chemistry Oxidoreductase Oxidoreductases Oxidoreductases Acting on CH-CH Group Donors - chemistry Photochemicals Photochemistry Photochemistry - methods Photoreduction Physiological aspects Pigmentation Pigments Protochlorophyllide Protochlorophyllide - chemistry Protons Reduction Science Solvents Solvents - chemistry Species Spectrometry, Fluorescence - methods Spectrophotometry - methods Spectroscopy Studies Synechococcus - metabolism Time Factors |
SummonAdditionalLinks | – databaseName: DOAJ Directory of Open Access Journals dbid: DOA link: http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwrV1Lb9QwELbQnrggyqtLCxiEBBzSbmzHiY8FURUkQAKKeosc22kjLUm02ZVofz0ztjdqUCU4cF1PVrvz8jfKzDeEvEytUC4rdMI144mASwBCqhbJwrG0husK91tgt8VneXIqPp5lZ9dWfWFPWKAHDoo7TFllbO5yo60WShstpDHOcoAZPBPG-Oy7YNtiKuRgiGIp46Acz9PDaJeDvmvdQaBQYZOLyPP1j1l51i-74SbI-Wfn5LWr6PguuRMxJD0Kv32H3HLtPbITo3SgryOV9Jv7ZPjkcLLXkzFTgId9v9LNAM92NXVIbUwBHJ472l90a1ydFXa_0aalgAvp0pOM2BUmROraq8ufILnyklDld2Cg5bKxjna_GtxXgsyxcCc-IKfH77-_O0nimoXESMXWCZTHRllrEI3IwlRQ8mkLqENo62Sqq5RrbrgyqXVMpZpzKwwTzhSpW-QSAvghmbWg2F1CRQEFTp3brFJOSO0UVCsVA4TlMqN4Zeck2eq87AObRulfqeVQhQTllWijMtpoTt6iYUZZ5ML2H4CHlNFDyr95yJw8Q7OWYbB0jOjySCic24UMNicvvATyYbTYcHOuN8NQfvjy4x-Evn2dCL2KQnUHDmJ0HHKA_4Q8WxPJ_YkkGNhMjnfRCbdaGUBHTAK6VRKf3DrmzcfPx2P8Umyia123GbDZICsQQoPMo-DHo2b969aCL-Ykn3j4RPXTk7a58HTkHIedlXj8P2y1R24DImXYkMPkPpmtVxv3BFDfunrqA_w3bg9Z3A priority: 102 providerName: Directory of Open Access Journals – databaseName: ProQuest Technology Collection dbid: 8FG link: http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwjV3db9MwELegPMAL2sbHwgYYhAQ8ZGtsx4mf0BgrAwFDg6G9RY7tdpVKUppWAv567hynEDQhXuuLld75vuK73xHyJLFCuTTXMdeMxwKcAKjUWMRDx5IxuCucb4HVFh_k8Zl4e56ehw9uTSir7GyiN9S2NviNfB-yJgneXcn8xfxbjFOj8HY1jNC4Sq4lLJNY0pePXneWGHRZytAux7NkP0hnb15Xbq8FUmE9d-RR-9e2eTCf1c1lgeff9ZN_OKTRBrkZIkl60Ip-k1xx1Ra5ftgNcNsim0FvG_osgEs_v0Wa9w57fT08Mz11CCmupw3sU4-pBzumEH5OHP14US9xmFa7GZ1WFCJF-s7DjrxaoImkR9XPH1-BcuEpIe-vQWSz2dQ6evJ9ihNMEEsWvORtcjY6-nx4HIfBC7GRii1jSJiNstZgfCJzU0ISqC3EIUJbJxNdJlxzw5VJrGMq0ZxbYZhwJk_cMJOg0nfIoAImbxMqckh5xplNS-WE1E5B_lIyiLlcahQvbUTijv_FvMXXKPwlWwZ5ScvIAuVVBHlF5CUKaU2L6Nj-h3oxKYKyFQkrjc1cZrTVQmmjhTTGWQ6hKU-FMRF5iCIu2lbTtY4XB0JhJy_YtIg89hSIkFFhCc5Er5qmeHPy5T-IPp32iJ4GonENh8Xo0PYA_wmRt3qUuz1KELDpLW_jgey40hS_NQKe7A7p5cuP1su4KZbVVa5eNVh-kOYYVAPN3fZMrznrL2BzPoxI1jvtPdb3V6rphQco59j-rMS9f7_WDrkB0SfD4hsmd8lguVi5-xDhLcsHXo1_ATUMUjc priority: 102 providerName: ProQuest – databaseName: Scholars Portal Open Access Journals dbid: M48 link: http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV3db9MwELemIgQvEysfKwwwCAl4SLU4jhM_IDTGpoEYQ4OivUWO7XSVSlKSVlr567lzPrSgIiFe67Ol3ofvd8r5d4S88A2XNoyVFygWeBySAIRUxr19y_wM0hXOt8Bui8_iZMI_XoQXW6Sd2doosNpY2uE8qUk5H1_9XL-FgH_jpjZEfrtpvChyO64JUuBSvsEgN2KT1ynvvitAdAvRPKD7206kB8ZvTzE2Rl_LVY7Sv7u4B4t5UW1CpX82V17LVsd3yHYDM-lB7Rc7ZMvmQ3KzHjy5HpJbh-2ctyHZacK7oq8aDurXd0l1avFJsGNxpucWmcfVrIITi4w6TmQKKHVq6ZfLYokzt-rD6CynACjpJ8dO8r7Em5Qe5b_WP0CydJLzoizAsvP5zFh6djXDQSdIOQvJ9B6ZHB99OzzxmvkMnhaSLT2oq7U0RiOMEbFOoVZUBuAKV8YKX6V-oAIdSO0by6SvgsBwzbjVsW_3IwGRf58MctD8LqE8hsooi0yYSsuFshLKnJQBNLOhlkFqRsRrLZEsahqOxH2Li6B8qVWaoBGTxogj8g7N1ckiibb7oSinSROTic9SbSIbaWUUl0orLrS2JgAEG4Rc6xF5isZO6hep3VWQHIBzACyEq29EnjsJJNLIsVNnqlZVlXw4-_4PQl_Pe0IvG6GsALfRqnkdAf8JCbp6kns9STCw7i3vomu2WqlAR0wALJYCd7buunn5WbeMh2L3XW6LVYVdCmGM2BtkHtTe3Wm2jZURiXp-31N9fyWfXToe8wBfSUv-8L93PiK3Ab8ybN9hYo8MluXKPgaMuEyfuLD_De0caEo priority: 102 providerName: Scholars Portal |
Title | Mechanistic reappraisal of early stage photochemistry in the light-driven enzyme protochlorophyllide oxidoreductase |
URI | https://www.ncbi.nlm.nih.gov/pubmed/23049830 https://www.proquest.com/docview/1326551968 https://search.proquest.com/docview/1095812328 https://pubmed.ncbi.nlm.nih.gov/PMC3458894 https://doaj.org/article/12bcd7e7cada49aca46cced3575354cc http://dx.doi.org/10.1371/journal.pone.0045642 |
Volume | 7 |
hasFullText | 1 |
inHoldings | 1 |
isFullTextHit | |
isPrint | |
link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV3fb9MwELa2IgQviJUfK4xiEBLwkHaJHSd53MrKQHSrCkN9ixzb7SK1SdW0EuOv585JqgXtAfHih_pitb473-fm7jtC3rmaR8YPpcOkxxwOQQBcasadY-O5MwhX2N8Csy0uxPkV_zr1p3vEr2thbNK-StJetlj2svTa5laulqpf54n1x6MBw_LKiPf3yT6E3_qKXh6_4MBCVDVyLHD7lUp6qzwzvZI9BTvY2NdLIeY-3wpHlrV_dza3Vou8uAt4_p0_eSsgDR-TRxWSpCflNz4geyZrk_tlb8mbNnkwqFu5tclB5cEF_VDRTH98QoqRwapfS9RMJwbJxWVawIr5jFraYwpAdG7o-DrfYFutcjGaZhQwI_1mCUg-rfGwpGfZ75slSK6t5CJf56C8xSLVhl7-SrGXCbLKQrx8Sq6GZz8G507VgsFRIvI2DlydVaS1QqQiQpXAdVBqQCRcaiNcmbhMMsUi5WrjRa5kTHPlcaNC1xwHApz7GWllsPOHhPIQLj-zQPtJZLiQJoKbTOIB-jK-iliiO8SpNRGvSqaN2L5uC-CGUm5pjEqMKyV2yCmqayeLPNn2g3w9jytriV0vUTowgZJa8kgqyYVSRjMAqcznSnXIa1R2XBad7rw9PgHjAOQHp1uHvLUSyJWRYTLOXG6LIv5y-fMfhL5PGkLvK6FZDmajZFUAAb8JObgakkcNSVCwakwfomnWu1LAHnkCkG8k8MnaXO-efrObxkUxwS4z-bbARAQ_RHgNMs9L697tbO0rHRI07L6x9c0Z8FxLVV556ov_fvIleQgQ1cMMHU8ckdZmvTWvAAZuki44_zSAMRy4OA4_d8m907OL8aRr_1iBccTDrj0c_gB6wWQp |
link.rule.ids | 230,314,727,780,784,864,885,2102,2221,12056,12223,12765,21388,24318,27924,27925,31719,31720,33266,33267,33373,33374,33744,33745,43310,43579,43600,43805,53791,53793,73745,74014,74035,74302 |
linkProvider | National Library of Medicine |
linkToHtml | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwjV3db9MwELegexgviI2PBQYzCAl4yNbEjhM_oW106qDrprKhvUWO7XaVSlKaVgL-eu4SpxA0IV7ri5Xe-b7iu98R8jowXNooUT5TIfM5OAFQqTH3uzYMxuCucL4FVlsMRf-Kf7yOrt0Ht9KVVTY2sTLUptD4jfwAsiYB3l2K5P38m49To_B21Y3QuEs2EDk96pCNo97wYtTYYtBmIVzDHIuDAyef_XmR2_0aSiVsOaQKt39tnTvzWVHeFnr-XUH5h0s6eUDuu1iSHtbC3yJ3bL5NNo-bEW7bZMtpbknfOnjpdw9JeWax27cCaKYji6DialrCPsWYVnDHFALQiaUXN8USx2nVm9FpTiFWpIMKeOTDAo0k7eU_f3wFykVFCZl_AUKbzabG0vPvU5xhgmiy4CcfkauT3uVx33ejF3wtZLj0IWXW0hiNEYpIdAZpoDIQiXBlrAhUFjDFNJM6MDaUgWLMcB1yq5PAdmMBSv2YdHJg8g6hPIGkZxybKJOWC2UlZDBZCFGXjbRkmfGI3_A_ndcIG2l1zRZDZlIzMkV5pU5eHjlCIa1pER-7-qFYTFKnbmkQZtrENtbKKC6VVlxobQ2D4JRFXGuP7KGI07rZdK3l6SGX2MsLVs0jryoKxMjIsQhnolZlmZ6ef_kPos-jFtEbRzQu4LBo5Rof4D8h9laLcrdFCQLWreUdPJANV8r0t07Ak80hvX355XoZN8XCutwWqxILEKIEw2qgeVKf6TVnqyvYhHU9ErdOe4v17ZV8elNBlDNsgJb86b9fa49s9i_PBungdPjpGbkHsWiIpTih2CWd5WJln0O8t8xeOKX-BdQQVog |
linkToPdf | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwjV3db9MwELegk4AXxMbHCoMZhAQ8ZG1ix4mf0D46bTC6qrBpb5FjO12lkpSmlYC_nrvEKQRNiNf6GrX3ffHd7wh57RsubRgrj6mAeRyCAJhUxr2-DfwMwhXut8Bui6E4ueAfrsIr1_9UurbKxidWjtoUGt-R96BqEhDdpYh7mWuLGB0dv59_83CDFN60unUat8kGRMV-0CEbB4PhaNz4ZbBsIdzwHIv8npPV3rzI7V4NqxK0glOF4b_21J35rChvSkP_7qb8IzwdPyD3XV5J92tF2CS3bL5F7h4269y2yKaz4pK-dVDT7x6S8pPFyd8KrJmOLQKMq2kJzykyWkEfU0hGJ5aOroslrtaqH0anOYW8kZ5VICRHC3SYdJD__PEVKBcV5axYFCDA2WxqLD3_PsV9JogsCzHzEbk4Hnw5PPHcGgZPCxksPSiftTRGY7YiYp1CSagMZCVcGSt8lfpMMc2k9o0NpK8YM1wH3OrYt_1IgIE_Jp0cmLxNKI-hAMoiE6bScqGshGomDSADs6GWLDVd4jX8T-Y12kZSXblFUKXUjExQXomTV5ccoJDWtIiVXX1QLCaJM73ED1JtIhtpZRSXSisutLaGQaLKQq51l-yiiJN68HRt8ck-lzjXCx6uS15VFIiXkaPmTdSqLJPT88v_IPo8bhG9cURZAcqilRuCgP-EOFwtyp0WJQhYt463USEbrpTJb_uAbzZKevPxy_UxPhSb7HJbrEpsRghjTLGB5kmt02vOVtexMet3SdTS9hbr2yf59LqCK2c4DC3503__rF1yB-w5OTsdfnxG7kFaGmBXTiB2SGe5WNnnkPot0xfOpn8B0m1atQ |
openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=Mechanistic+Reappraisal+of+Early+Stage+Photochemistry+in+the+Light-Driven+Enzyme+Protochlorophyllide+Oxidoreductase&rft.jtitle=PloS+one&rft.au=Heyes%2C+Derren+J.&rft.au=Hardman%2C+Samantha+J.+O.&rft.au=Mansell%2C+David&rft.au=Gardiner%2C+John+M.&rft.date=2012-09-26&rft.pub=Public+Library+of+Science&rft.eissn=1932-6203&rft.volume=7&rft.issue=9&rft_id=info:doi/10.1371%2Fjournal.pone.0045642&rft_id=info%3Apmid%2F23049830&rft.externalDBID=PMC3458894 |
thumbnail_l | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/lc.gif&issn=1932-6203&client=summon |
thumbnail_m | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/mc.gif&issn=1932-6203&client=summon |
thumbnail_s | http://covers-cdn.summon.serialssolutions.com/index.aspx?isbn=/sc.gif&issn=1932-6203&client=summon |