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偏方复十二面体孪晶也可能发生在你身上。

Tetartohedral twinning could happen to you too.

作者信息

Roversi Pietro, Blanc Eric, Johnson Steven, Lea Susan Mary

机构信息

Sir William Dunn School of Pathology, Oxford University, South Parks Road, Oxford OX1 3RE, England.

出版信息

Acta Crystallogr D Biol Crystallogr. 2012 Apr;68(Pt 4):418-24. doi: 10.1107/S0907444912006737. Epub 2012 Mar 16.

DOI:10.1107/S0907444912006737
PMID:22505261
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3322600/
Abstract

Tetartohedral crystal twinning is discussed as a particular case of (pseudo)merohedral twinning when the number of twinned domains is four. Tetartohedrally twinned crystals often possess pseudosymmetry, with the rotational part of the pseudosymmetry operators coinciding with the twinning operators. Tetartohedrally twinned structures from the literature are reviewed and the recent structure determination of tetartohedrally twinned triclinic crystals of human complement factor I is discussed.

摘要

当孪晶畴数为四个时，四分面晶体孪晶被作为（假）准面孪晶的一个特殊情况进行讨论。四分面孪晶晶体通常具有赝对称性，赝对称算符的旋转部分与孪晶算符一致。本文回顾了文献中四分面孪晶结构，并讨论了人补体因子I四分面孪晶三斜晶体的最新结构测定。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b7c3/3322600/5c16f8b9d522/d-68-00418-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b7c3/3322600/2e686bef183d/d-68-00418-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b7c3/3322600/5c16f8b9d522/d-68-00418-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b7c3/3322600/2e686bef183d/d-68-00418-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b7c3/3322600/5c16f8b9d522/d-68-00418-fig2.jpg

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本文引用的文献

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2
Structure of the spliceosomal U4 snRNP core domain and its implication for snRNP biogenesis.剪接体 U4 snRNP 核心结构域及其对 snRNP 生物发生的影响。
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3
REFMAC5 for the refinement of macromolecular crystal structures.
新型调制晶体结构的圣约翰草 Hyp-1 蛋白与 36 个蛋白分子在超晶胞的不对称单位。
Acta Crystallogr D Struct Biol. 2020 Jul 1;76(Pt 7):653-667. doi: 10.1107/S2059798320006841. Epub 2020 Jun 17.
4
Pathological macromolecular crystallographic data affected by twinning, partial-disorder and exhibiting multiple lattices for testing of data processing and refinement tools.存在孪晶、部分无序现象并表现出多个晶格的大分子晶体学病理性数据，用于测试数据处理和精修工具。
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