MARC details
| 000 -LEADER |
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| fixed length control field |
02577nam a2200289Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625162422.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-18976 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Chlorophyll and pheophytin dephytylating enzymes required for efficient repair of PSII in Synechococcus elongatus PCC 7942 |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Plant & Cell Physiology, 63(3), p.410-420, 2022 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
The Chlorophyll Dephytylase1 (CLD1)and pheophytinase (PPH)proteins of Arabidopsis thaliana are homologous proteins characterized respectively as a dephytylase for chlorophylls (Chls)and pheophytin a (Phein a)and a Phein a-specific dephytylase. Three genes encoding CLD1/PPH homologs (dphA1, dphA2 and dphA3)were found in the genome of the cyanobacterium Synechococcus elongatus PCC 7942 and shown to be conserved in most cyanobacteria. His6-tagged DphA1, DphA2 and DphA3 proteins were expressed in Escherichia coli, purified to near homogeneity, and shown to exhibit significant levels of dephytylase activity for Chl a and Phein a. Each DphA protein showed similar dephytylase activities for Chl a and Phein a, but the three proteins were distinct in their kinetic properties, with DphA3 showing the highest and lowest Vmax and Km values, respectively, among the three. Transcription of dphA1 and dphA3 was enhanced under high-light conditions, whereas that of dphA2 was not affected by the light conditions. None of the dphA single mutants of S. elongatus showed profound growth defects under low (50?µmol photons m?2 s?1)or high (400?µmol photons m?2 s?1)light conditions. The triple dphA mutant did not show obvious growth defects under these conditions, either, but under illumination of 1,000?µmol photons m?2 s?1, the mutant showed more profound growth retardation compared with wild type (WT). The repair of photodamaged photosystem II (PSII)was much slower in the triple mutant than in WT. These results revealed that dephytylation of Chl a or Phein a or of both is required for efficient repair of photodamaged PSII. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
CHLOROPHYLL |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
CYANOBACTERIA |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
DEPHYTYLASE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
HIGH-LIGHT ACCLIMATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
PHOTOINHIBITION OF PSII |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Takatani, N. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Uenosono, M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Hara, Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Yamakawa, H. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Fujita, Y. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Omata, T. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1dPfyBEub7DPFFbzHo7q_ue0IvhJ7D2z_/view?usp=drivesdk">https://drive.google.com/file/d/1dPfyBEub7DPFFbzHo7q_ue0IvhJ7D2z_/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
