Proton Nuclear Magnetic Resonance Spectroscopic Analysis of Polypeptide Models of the Elastic Network Phase of Wool Fibers: Defining Cys-Residues Capable of Serving as a Crosslinking Agent

Mark I. Liff

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Proton Nuclear Magnetic Resonance Spectroscopic Analysis of Polypeptide Models of the Elastic Network Phase of Wool Fibers: Defining Cys-Residues Capable of Serving as a Crosslinking Agent

机译：羊毛纤维的弹性网络相的多肽模型的质子核磁共振光谱分析：定义可以用作交联剂的半胱氨酸残基

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A polymer network structure of the matrix phase of wool fibers was modeled by polypeptide ssytems containing fragments of high sulfur (HS) proteins with Cys-residues oxidized in pairs to form a network. Our previous studies have shown that Cys-residues belonging to the two characteristics repeats (dipeptide and pentapeptide) from HS proteins of the matrix have a low propensity to serve as crosslinks of the matrix. This study reveals that Cys-residues located outside the two repeats have a higher propensity to serve as crosslinks of the network than Cys-residues belonging to the repeats. Effective crosslinking by the nonrepeat Cys-residues, on the one hand, and formation of intrarepeat loops by the residues of the repeats, on the other hand, can explain well-known macroscopic properties of the matrix phase, such as its elasticity and ability to swell in solvents.

机译：羊毛纤维基质相的聚合物网络结构是通过多肽系统模拟的，该系统包含高硫（HS）蛋白片段，Cys残基成对氧化，形成网络。我们以前的研究表明，属于基质HS蛋白的两个特征重复序列（二肽和五肽）的Cys残基具有低的作为基质交联的倾向。这项研究表明，位于两个重复序列之外的Cys残基比属于重复序列的Cys残基具有更高的网络交联倾向。一方面，通过非重复的Cys残基进行有效的交联，另一方面，通过重复序列的残基形成内部重复环，可以解释基质相的众所周知的宏观特性，例如其弹性和在溶剂中溶胀。

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《Journal of Applied Polymer Science》 |2001年第7期|共5页
作者
Mark I. Liff;
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正文语种 eng
中图分类高分子化学（高聚物）;高分子化合物产品;有机化学;
关键词
biopolymer networks; high sulfur proteins of wool; nmr;

机译：生物聚合物网络;羊毛的高硫蛋白;核磁共振;

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1. Proton Nuclear Magnetic Resonance Spectroscopic Analysis of Polypeptide Models of the Elastic Network Phase of Wool Fibers: Defining Cys-Residues Capable of Serving as a Crosslinking Agent [J] . Mark I. Liff Journal of Applied Polymer Science . 2001,第7期

机译：羊毛纤维的弹性网络相的多肽模型的质子核磁共振光谱分析：定义可以用作交联剂的半胱氨酸残基
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机译：在使用新的扩张型心肌病的患者缓和EPOSTERS1385Longitudinal应变评估加速DENSE sequence1407Simultaneous T1和T2与CABIRIA心脏定量：在4维流动的加速算法初始临床experience1423Head对头比较CMR1502Left心室功能和尺寸由混合心脏正电子发射断层摄影术评价 - 磁性共振：由两个modalities1510Left庭派生左室射血分数和心室体积的个体间的比较，在1.5和3特斯拉评估心血管磁共振 - 免费的年龄和性别effects1514Comparison呼吸心脏MRI径向技术标准的多屏气电影SSFP CMR技术的LV卷和Function1536Self-导航自由呼吸各向同性3D整个心脏相位敏感反转恢复磁共振导航仪没有检测右Ventricu心肌infarction1547Assessment的评估拉尔菌株使用心肌变形恢复半自动技术：初步经验和正常Values1586Tissue跟踪心肌变形分析和预测左室重构急性心肌infarction1589Investigating策略优化31P MRS临床心脏在3T：初始Results1620Quantitative标准的先天缺失的诊断心包心脏磁Resonance1632Widespread组织损伤急性心肌梗死时：证据先进CMR relaxometry1322Computed CT冠状动脉成像与压力心脏磁共振对症的管理吻合血管患者：成本效益研究（战略研究）1339Comparison低与高剂量钆布醇在1.5特斯拉晚钆增强成像的临床可行性，在中间型地贫心脏并发症的预测study1347Multi参数心脏核磁共振的前瞻性德穆尔心血管磁共振的ticenter Study1461Prognostic价值衍生心肌纤维化指标在住院的急性期CMR的心脏移植recipients1523The作用：改变基于CMR-paradigms1542Preoperative比分预测缺血性心脏衰竭patients1555Excellent响应速度外科左心室重建心脏再同步化后心室反应治疗与磁共振imaging1626The ECG导引作为心脏磁共振成像致心律失常性基板的在ST段抬高心肌infarction1340Pathological在风险评估经历在3.0T CMR T1映射的室性早搏contractions1649Comparison和血管造影APPROACH分数区域消融患者的预测左束支传导疾病的患者与非缺血性心肌病相关因素：心血管磁共振study1342Myocardial重塑和纤维化nonischaemic扩张型心肌病：在从在由心血管磁性resonance1622Persistent心肌炎症评估肥厚型心肌病的纤维化和收缩功能障碍之间心血管磁性resonance1411The协会由于心肌内出血景点在再灌注STEMI为先导，以不利的LV重塑 - 从低的多参数mapping1566Semiquantitative分析和高的b值DWI的见解为在心脏MRI检测冠状动脉疾病急性myocarditis1567Value在结节性硬化症complex1578Papillary肌肉初诊收缩期Dysfunction1570Usefulness心脏磁共振检测心肌水肿提供进一步的深入了解肥大心脏：心血管磁共振study1627Diagnostic和CMR定时的临床意义（早期与晚）患者肌钙蛋白阳性的急性冠脉综合征和通畅的冠状动脉：表1。

Proton Nuclear Magnetic Resonance Spectroscopic Analysis of Polypeptide Models of the Elastic Network Phase of Wool Fibers: Defining Cys-Residues Capable of Serving as a Crosslinking Agent

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