Structure of murine Tcl1 at 2.5 A resolution and implications for the TCL oncogene family.

Structure of murine Tcl1 at 2.5 A resolution and implications for the TCL oncogene family.
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2.5 A 分辨率下的鼠 Tcl1 结构及其对 TCL 癌基因家族的影响。

DOI:
10.1107/s090744490101352x
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发表时间:
2001
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
通讯作者:
Weber,IT
Weber,IT
中科院分区:
--
文献类型:
--
作者:
Petock,JM;Torshin,IY;Wang,YF;DuBois,GC;Croce,CM;Harrison,RW;Weber,IT

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Tcl 1和Mtcp 1是Tcl 1家族的成员,与T细胞幼淋巴细胞白血病有关。小鼠Tcl 1的二聚体的晶体结构已被确定在2.5 μ m分辨率与R因子为0.225。 鼠Tcl 1、人Tcl 1和Mtcp 1具有非常相似的亚基结构,Cα原子的RMS差异分别为0.6和1.4 μ m,而序列分别具有50%和36%的同一性。 这些结构折叠成具有独特拓扑结构和高度内部对称性的八链β-桶,对于人和鼠Tcl 1的两半为1.1-1.3 μ m,对于Mtcp 1为1.7 μ m,尽管序列同一性低12-13%。  所有三种结构的分子表面都显示出一个共同的平面区域,该区域可能参与蛋白质-蛋白质相互作用。
Tcl1 and Mtcp1, members of the Tcl1 family, are implicated in T-cell prolymphocytic leukemia. The crystal structure of a dimer of murine Tcl1 has been determined at 2.5 Å resolution with an R factor of 0.225. Murine Tcl1, human Tcl1 and Mtcp1 share very similar subunit structures, with RMS differences of 0.6 and 1.4 Å for Cα atoms, respectively, while the sequences share 50 and 36% identity, respectively. These structures fold into an eight-stranded β-barrel of unique topology and high internal symmetry of 1.1–1.3 Å for the two halves of human and murine Tcl1 and 1.7 Å for Mtcp1, despite the low 12–13% sequence identity. The molecular surfaces of all three structures showed a common planar region which is likely to be involved in protein–protein interactions.
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发表时间: 1997-12-01
影响因子: 6.1
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