Suppr超能文献

来自古氏柱头虫的叠氮高铁蚯蚓血红蛋白中二聚体铁位点的X射线吸收光谱。

X-ray absorption spectroscopy of the dimeric iron site in azidomethemerythrin from Phascolopsis gouldii.

作者信息

Hendrickson W A, Co M S, Smith J L, Hodgson K O, Klippenstein G L

出版信息

Proc Natl Acad Sci U S A. 1982 Oct;79(20):6255-9. doi: 10.1073/pnas.79.20.6255.

DOI:10.1073/pnas.79.20.6255
PMID:6959115
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC347099/
Abstract

X-ray absorption spectroscopy has been used to study the dimeric iron center in azidomethemerythrin from Phascolopsis gouldii. Absorption edge data confirm that the two iron atoms are present as Fe(III) and suggest a hexa-coordination site for each of the iron atoms. The extended x-ray absorption fine structure (EXAFS) analysis provides direct structural evidence of a mu-oxo bridge between the two iron atoms at an average Fe-O distance of 1.71-1.76 A. Analysis using a multiple-scattering formalism calculates upper limits of 165 degrees for the Fe-O-Fe bridging angle and 3.38 A for the Fe-Fe distance. This result agrees with current crystallographic models being determined by refinement of structures of two azidomethemerythrins.

摘要

X射线吸收光谱已被用于研究来自古氏管须蟹的叠氮高铁血蓝蛋白中的二聚体铁中心。吸收边数据证实两个铁原子以Fe(III)形式存在，并表明每个铁原子有一个六配位位点。扩展X射线吸收精细结构（EXAFS）分析提供了两个铁原子之间存在μ-氧桥的直接结构证据，平均Fe-O距离为1.71 - 1.76 Å。使用多重散射形式进行的分析计算出Fe-O-Fe桥连角的上限为165度，Fe-Fe距离的上限为3.38 Å。该结果与通过对两种叠氮高铁血蓝蛋白结构进行精修而确定的当前晶体学模型一致。

相似文献

1
X-ray absorption spectroscopy of the dimeric iron site in azidomethemerythrin from Phascolopsis gouldii.来自古氏柱头虫的叠氮高铁蚯蚓血红蛋白中二聚体铁位点的X射线吸收光谱。
Proc Natl Acad Sci U S A. 1982 Oct;79(20):6255-9. doi: 10.1073/pnas.79.20.6255.
2
The active site of hemerythrin as determined by X-ray absorption fine structure.通过X射线吸收精细结构确定的蚯蚓血红蛋白的活性位点。
Biochemistry. 1988 Sep 20;27(19):7470-9. doi: 10.1021/bi00419a045.
3
Raman and infrared spectroscopy of the oxo-bridged iron(III) complex, [Cl3Fe-O-FeCl3]-2 as a spectroscopic model for the oxo bridge in hemerythrin and ribonucleotide reductase.氧桥联铁（III）配合物[Cl₃Fe - O - FeCl₃]⁻²的拉曼光谱和红外光谱，作为蚯蚓血红蛋白和核糖核苷酸还原酶中氧桥的光谱模型。
J Inorg Biochem. 1982 Aug;17(1):69-74. doi: 10.1016/s0162-0134(00)80231-7.
4
Structure of the iron complex in methemerythrin.高铁血红素蛋白中铁复合物的结构。
Proc Natl Acad Sci U S A. 1976 Feb;73(2):349-51. doi: 10.1073/pnas.73.2.349.
5
Active site structures of deoxyhemerythrin and oxyhemerythrin.脱氧血绿蛋白和氧合血绿蛋白的活性位点结构。
Proc Natl Acad Sci U S A. 1985 Feb;82(3):713-6. doi: 10.1073/pnas.82.3.713.
6
Myohemerythrin from the sipunculid, Phascolopsis gouldii: purification, properties and amino acid sequence.来自星虫动物古氏管体星虫的肌红血球素：纯化、特性及氨基酸序列
Biochim Biophys Acta. 1992 Jul 31;1122(2):136-42. doi: 10.1016/0167-4838(92)90315-5.
7
Extended X-ray absorption fine structure studies on the iron-containing subunit of ribonucleotide reductase from Escherichia coli.
Biochemistry. 1987 Jul 28;26(15):4708-16. doi: 10.1021/bi00389a017.
8
Resonance Raman studies and structure of a sulfide complex of methemerythrin.高铁肌红蛋白硫化物复合物的共振拉曼光谱研究及其结构
Biochemistry. 1979 Nov 27;18(24):5372-7. doi: 10.1021/bi00591a018.
9
X-ray absorption spectroscopy of hemes and hemeproteins in solution: multiple scattering analysis.溶液中血红素和血红蛋白的X射线吸收光谱：多重散射分析
Inorg Chem. 2008 Nov 3;47(21):9905-18. doi: 10.1021/ic800982a. Epub 2008 Oct 7.
10
Comparisons of redox kinetics of methemerythrin and mu-sulfidomethemerythrin. Implications for interactions with cytochrome b5.高铁红蛋白和μ-硫高铁红蛋白的氧化还原动力学比较。对与细胞色素b5相互作用的影响。
Biochemistry. 1987 Dec 29;26(26):8709-17. doi: 10.1021/bi00400a033.

引用本文的文献

1
Facing the phase problem.面对相移问题。
IUCrJ. 2023 Sep 1;10(Pt 5):521-543. doi: 10.1107/S2052252523006449.
2
Anomalous diffraction in crystallographic phase evaluation.晶体相评估中的异常衍射。
Q Rev Biophys. 2014 Feb;47(1):49-93. doi: 10.1017/S0033583514000018.

本文引用的文献

1
The nature of the active site of hemerythrin.蚯蚓血红蛋白活性位点的性质。
Arch Biochem Biophys. 1957 Jun;68(2):284-99. doi: 10.1016/0003-9861(57)90360-0.
2
Resonance Raman spectroscopy of iron-oxygen vibrations in hemerythrin.蚯蚓血红蛋白中铁 - 氧振动的共振拉曼光谱
Arch Biochem Biophys. 1980 Dec;205(2):449-63. doi: 10.1016/0003-9861(80)90128-9.
3
Mössbauer spectroscopic studies of hemerythrin from Phascolosoma lurco (syn. Phascolosoma arcuatum).
Biochemistry. 1981 Aug 4;20(16):4628-32. doi: 10.1021/bi00519a017.
4
The primary structure of Golfingia gouldii hemerythrin. Interpeptide overlaps and sequences from chymotryptic peptides.古氏蛰龙介血红蛋白的一级结构。肽间重叠以及来自胰凝乳蛋白酶消化肽段的序列。
Biochemistry. 1968 Nov;7(11):3859-67. doi: 10.1021/bi00851a011.
5
A magnetic susceptibility study of hemerythrin using an ultrasensitive magnetometer.使用超灵敏磁力计对蚯蚓血红蛋白进行的磁化率研究。
Biochemistry. 1972 Feb 1;11(3):461-5. doi: 10.1021/bi00753a026.
6
The crystal structure and molecular stereochemistry of -oxo-bis( , , , -tetraphenylporphinatoiron (3)).
J Am Chem Soc. 1972 May 17;94(10):3620-6. doi: 10.1021/ja00765a060.
7
Structure of methemerythrin at 5 A resolution.分辨率为5埃的高铁肌红蛋白结构。
J Mol Biol. 1976 Jan 5;100(1):23-34. doi: 10.1016/s0022-2836(76)80031-9.
8
Letter: Molybdenum X-ray absorption edge spectra. The chemical state of molybdenum in nitrogenase.信件：钼的X射线吸收边光谱。固氮酶中钼的化学状态。
J Am Chem Soc. 1976 Mar 3;98(5):1287-8. doi: 10.1021/ja00421a053.
9
Quaternary and tertiary structure of haemerythrin.蚯蚓血红蛋白的四级结构和三级结构。
Nature. 1975 Oct 30;257(5529):818-21. doi: 10.1038/257818a0.
10
Tertiary structure of myohemerythrin at low resolution.低分辨率下肌红蛋白的三级结构。
Proc Natl Acad Sci U S A. 1975 Jun;72(6):2160-4. doi: 10.1073/pnas.72.6.2160.

文献AI研究员

20分钟写一篇综述，助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型，支持多种主流文档格式。

立即体验