MARC details
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03697nam a2200265Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625124717.0 |
| 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-8256 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Classification and phylogeny of hydrogenases |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
FEMS MicroBiology Review, 25, p.455-501, 2001 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Hydrogenases (H2ases)catalyze the reversible oxidation of molecular hydrogen and play a central role in microbial energy metabolism. Most of these enzymes are found in Archaea and Bacteria, but a few are present in Eucarya as well. They can be distributed into three classes: the [Fe]-H2ases, the [NiFe]-H2ases, and the metal-free H2ases. The vast majority of known H2ases belong to the first two classes, and over 100 of these enzymes have been characterized genetically and/or biochemically. Compelling evidence from sequences and structures indicates that the [NiFe]- and [Fe]-H2ases are phylogenetically distinct classes of proteins. The catalytic core of the [NiFe]-H2ases is a heterodimeric protein, although additional subunits are present in many of these enzymes. Functional classes of [NiFe]-H2ases have been defined, and they are consistent with categories defined by sequence similarity of the catalytic subunits. The catalytic core of the [Fe]-H2ases is a ca. 350-residue domain that accommodates the active site (H-cluster). A few monomeric [Fe]-H2ases are barely larger than the H-cluster domain. Many others are monomeric as well, but possess additional domains that contain redox centers, mostly iron^sulfur. Some [Fe]- H2ases are oligomeric. The modular structure of H2ases is strikingly illustrated in recently unveiled sequences and structures. It is also remarkable that most of the accessory domains and subunits of H2ases have counterparts in other redox complexes, in particular NADHubiquinone oxidoreductase (Complex I)of respiratory chains. Microbial genome sequences are bringing forth a significant body of additional H2ase sequence data and contribute to the understanding of H2ase distribution and evolution. Altogether, the available data suggest that [Fe]-H2ases are restricted to Bacteria and Eucarya, while [NiFe]-H2ases, with one possible exception, seem to be present only in Archaea and Bacteria. H2ase processing and maturation involve the products of several genes which have been identified and are currently being characterized in the case of the [NiFe]-H2ases. In contrast, near to nothing is known regarding the maturation of the [Fe]-H2ases. Inspection of the currently available genome sequences suggests that the [NiFe]-H2ase maturation proteins have no similar counterparts in the genomes of organisms possessing [Fe]-H2ases only. This observation, if confirmed, would be consistent with the phylogenetic distinctiveness of the two classes of H2ases. Sequence alignments of catalytic subunits of H2ases have been implemented to construct phylogenetic trees that were found to be consistent, in the main, with trees derived from other data. On the basis of the comparisons performed and discussed here, proposals are made to simplify and rationalize the nomenclature of H2ase-encoding genes. ß 2001 Federation of European Microbiological Societies. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
[NIFE]-HYDROGENASE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
[FE]-HYDROGENASE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
PHYLOGENY |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
RESPIRATORY CHAIN |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
COMPLEX I |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
FERREDOXIN |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Vignais, P.M. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Billoud, B. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Meyer, J. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1KT9bce8g15IeHEsT8GYC_nWkqhIDbVWe/view?usp=drivesdk">https://drive.google.com/file/d/1KT9bce8g15IeHEsT8GYC_nWkqhIDbVWe/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 |
