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11. |
Roots: Molecular basis of biological regulation: Origins from feedback inhibition and allostery |
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BioEssays,
Volume 2,
Issue 1,
1985,
Page 37-40
Arthur B. Pardee,
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摘要:
AbstractOne observes regulation at every biological level. Organisms, cells, and biochemical processes operate efficiently, normally wasting neither material nor energy, and adjusting their functions to external influences. Nature evidently has evolved mechanisms specifically dedicated to regulation at many levels. What is the molecular basis of this control?In the 1950s these molecular control mechanisms began to be explored seriously. The discoveries of feedback inhibition of enzyme activity were important because they gave an initial example of how regulation is achieved at the molecular level. We showed that certain enzymes are composed of two parts, one for catalysis and another distinct part present only to regulate this catalysis. Catalytic activity can be either stimulated or inhibited when a small molecule in the environment combines with the enzyme's regulatory site. In particular, a final product of a metabolic pathway generates a feedback loop which automatically limits its own excessive production, by combining with the regulatory site of an early enzyme in that pathway. Later studies showed that catalytic and regulatory structures of some enzymes could be separated physically.The discovery of regulatory sites and their interaction with molecules unrelated to their substrates was the basis for the generalized allosteric concept. This concept extends the regulatory site idea to a wide variety of processes such as control of gene expression, hormone action, and cellular growth.
ISSN:0265-9247
DOI:10.1002/bies.950020112
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1985
数据来源: WILEY
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12. |
Biochemistry news: Enzyme nomenclature 1984 |
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BioEssays,
Volume 2,
Issue 1,
1985,
Page 41-41
H. B. F. Dixon,
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ISSN:0265-9247
DOI:10.1002/bies.950020113
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1985
数据来源: WILEY
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13. |
Amphibian Development: A multipurpose treatment. Amphibian Morphogenesis. By HAROLDFOX. The Humana Press, Clifton, N.J. 1984. Pp. 277. $54 |
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BioEssays,
Volume 2,
Issue 1,
1985,
Page 42-43
G. M. Malacinski,
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PDF (272KB)
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ISSN:0265-9247
DOI:10.1002/bies.950020115
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1985
数据来源: WILEY
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14. |
All about histone genes. Histone genes: Structure, organization, and regulation. Edited by G. S. STEIN, J. L. STEINand W. F. MARZLUFF. John Wiley and Sons, New York, Chichester, 1984. Pp. 483. £78.70, $105.75 |
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BioEssays,
Volume 2,
Issue 1,
1985,
Page 43-43
Lynna M. Hereford,
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PDF (126KB)
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ISSN:0265-9247
DOI:10.1002/bies.950020117
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1985
数据来源: WILEY
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15. |
Masthead |
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BioEssays,
Volume 2,
Issue 1,
1985,
Page -
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PDF (125KB)
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ISSN:0265-9247
DOI:10.1002/bies.950020101
出版商:Wiley Subscription Services, Inc., A Wiley Company
年代:1985
数据来源: WILEY
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