The crystal structure of myoglobin III. Sperm-whale myoglobin
Myoglobin of Physeter catodon (sperm whale) forms monoclinic crystals with space group P 2 1 (type A ) in ammonium sulphate, and orthorhombic crystals with space group P 2 1 2 1 2 1 (type B ) in phosphate. Almost identical crystal forms are obtained from related species of whale. Two-dimensional Pat...
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Online Access: | http://dx.doi.org/10.1098/rspa.1957.0002 https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.1957.0002 |
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crroyalsociety:10.1098/rspa.1957.0002 2024-09-15T18:37:33+00:00 The crystal structure of myoglobin III. Sperm-whale myoglobin 1957 http://dx.doi.org/10.1098/rspa.1957.0002 https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.1957.0002 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences volume 238, issue 1214, page 305-324 ISSN 0080-4630 2053-9169 journal-article 1957 crroyalsociety https://doi.org/10.1098/rspa.1957.0002 2024-08-19T04:24:58Z Myoglobin of Physeter catodon (sperm whale) forms monoclinic crystals with space group P 2 1 (type A ) in ammonium sulphate, and orthorhombic crystals with space group P 2 1 2 1 2 1 (type B ) in phosphate. Almost identical crystal forms are obtained from related species of whale. Two-dimensional Patterson projections have been computed from some principal zones of reflexions in each type of crystal. They are used to derive the chain directions of the polypeptide chains in the molecules relative to the crystal axes, and to suggest plausible methods of packing in the two forms. The data are best fitted by a molecule having dimensions about 25 x 34 x 42 Å, the latter dimension being parallel to the chain direction. Measurements of electron-spin resonance (Bennett & Ingram 1956) and of optical dichroism have been used to determine the orientation of the planes of the haem group and the angle between them and the chains. It is concluded that the angle is 40 to 50° in the two forms, in good agreement with the value found for type F crystals in an earlier paper, namely, 41°. Thus in all three crystal types A , B and F the data are consistent with the molecule having the same set of dimensions, associated with a common chain direction and a common relation between chain direction and haem group. Article in Journal/Newspaper Sperm whale The Royal Society Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences 238 1214 305 324 |
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English |
description |
Myoglobin of Physeter catodon (sperm whale) forms monoclinic crystals with space group P 2 1 (type A ) in ammonium sulphate, and orthorhombic crystals with space group P 2 1 2 1 2 1 (type B ) in phosphate. Almost identical crystal forms are obtained from related species of whale. Two-dimensional Patterson projections have been computed from some principal zones of reflexions in each type of crystal. They are used to derive the chain directions of the polypeptide chains in the molecules relative to the crystal axes, and to suggest plausible methods of packing in the two forms. The data are best fitted by a molecule having dimensions about 25 x 34 x 42 Å, the latter dimension being parallel to the chain direction. Measurements of electron-spin resonance (Bennett & Ingram 1956) and of optical dichroism have been used to determine the orientation of the planes of the haem group and the angle between them and the chains. It is concluded that the angle is 40 to 50° in the two forms, in good agreement with the value found for type F crystals in an earlier paper, namely, 41°. Thus in all three crystal types A , B and F the data are consistent with the molecule having the same set of dimensions, associated with a common chain direction and a common relation between chain direction and haem group. |
format |
Article in Journal/Newspaper |
title |
The crystal structure of myoglobin III. Sperm-whale myoglobin |
spellingShingle |
The crystal structure of myoglobin III. Sperm-whale myoglobin |
title_short |
The crystal structure of myoglobin III. Sperm-whale myoglobin |
title_full |
The crystal structure of myoglobin III. Sperm-whale myoglobin |
title_fullStr |
The crystal structure of myoglobin III. Sperm-whale myoglobin |
title_full_unstemmed |
The crystal structure of myoglobin III. Sperm-whale myoglobin |
title_sort |
crystal structure of myoglobin iii. sperm-whale myoglobin |
publisher |
The Royal Society |
publishDate |
1957 |
url |
http://dx.doi.org/10.1098/rspa.1957.0002 https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.1957.0002 |
genre |
Sperm whale |
genre_facet |
Sperm whale |
op_source |
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences volume 238, issue 1214, page 305-324 ISSN 0080-4630 2053-9169 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspa.1957.0002 |
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Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences |
container_volume |
238 |
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1214 |
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305 |
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324 |
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1810481919206359040 |