Literature DB >> 6847624

Oxygen binding by Helix pomatia alpha-haemocyanin studied by X-ray-absorption spectroscopy.

R Torensma, J C Phillips.   

Abstract

The X-ray absorption spectra of haemocyanin from Helix pomatia were obtained by using X-rays from synchrotron radiation. Cu K-edges were recorded at four conditions, namely fully oxygenated, 85% oxygenated, 12% oxygenated and fully deoxygenated. The percentage oxygenation calculated from the edge-shift of the partially oxygenated samples did not agree with the percentage oxygenation as determined by u.v. measurements. Two intermediates in the oxygenation process are presented to explain the observed dissimilarities.

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Year:  1983        PMID： 6847624      PMCID： PMC1154103          DOI： 10.1042/bj2090373

Source DB:  PubMed          Journal:  Biochem J        ISSN： 0264-6021            Impact factor:   3.857


  10 in total

1.  ON THE NATURE OF ALLOSTERIC TRANSITIONS: A PLAUSIBLE MODEL.

Authors:  J MONOD; J WYMAN; J P CHANGEUX
Journal:  J Mol Biol       Date:  1965-05       Impact factor: 5.469

2.  Separation and absorption spectra of alpha- and beta-haemocyanin of Helix pomatia.

Authors:  K HEIRWEGH; H BORGINON; R LONTIE
Journal:  Biochim Biophys Acta       Date:  1961-04-15

3.  CO binding by hemocyanins of Limulus polyphemus, Busycon carica, and Callinectes sapidus.

Authors:  C Bonaventura; B Sullivan; J Bonaventura; S Bourne
Journal:  Biochemistry       Date:  1974-11-05       Impact factor: 3.162

4.  Structure and properties of hemocyanins. XIII. Dissociation of Helix pomatia alpha-hemocyanin at alkaline pH.

Authors:  R J Siezen; R van Driel
Journal:  J Mol Biol       Date:  1974-11-25       Impact factor: 5.469

5.  Oxygen binding by callianassa californiensis hemocyanin.

Authors:  K Miller; K E Van Holde
Journal:  Biochemistry       Date:  1974-04-09       Impact factor: 3.162

6.  Structure and properties of hemocyanins. V. Binding of oxygen and copper in Helix pomatia hemocyanin.

Authors:  W N Konings; R van Driel; E F van Bruggen; M Gruber
Journal:  Biochim Biophys Acta       Date:  1969-11-11

7.  Identification and assay of synchrotron radiation-induced alterations on metalloenzymes and proteins.

Authors:  B Chance; P Angiolillo; E K Yang; L Powers
Journal:  FEBS Lett       Date:  1980-04-07       Impact factor: 4.124

8.  A comparison of the copper sites in arthropod and mollusc oxyhemocyanins.

Authors:  R Torensma; J C Phillips
Journal:  FEBS Lett       Date:  1981-08-03       Impact factor: 4.124

9.  Functional properties of the isolated domains of Helix pomatia beta c-hemocyanin.

Authors:  R Torensma; J M van der Laan; E F van Bruggen; C Gielens; L van Paemel; L J Verschueren; R Lontie
Journal:  FEBS Lett       Date:  1980-06-30       Impact factor: 4.124

10.  Binding of carbon monoxide to alpha-hemocyanin and beta-hemocyanin from Helix pomatia.

Authors:  H A Kuiper; R Torensma; E F Van Bruggen
Journal:  Eur J Biochem       Date:  1976-09-15
  10 in total

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