New linker proteins in phycobilisomes isolated from the cyanobacterium Gloeobacter violaceus PCC 7421
New linker proteins in phycobilisomes isolated from the cyanobacterium Gloeobacter violaceus PCC 7421
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DOI：
10.1016/j.febslet.2006.04.098
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发表时间：
2006-06-12
期刊：
影响因子：
3.5
通讯作者：
Mimuro, Mamoru
中科院分区：
文献类型：
--
作者：
Koyama, Kohei;Tsuchiya, Tohru;Mimuro, Mamoru
通过肽质量指纹图谱从蓝藻紫胶杆菌 PCC 7421 中分离的藻胆体中鉴定出两种新的接头蛋白。这些蛋白是 glr1262 和 glr2806 的产物。每个中都存在与 CpcC 相似的三个串联藻蓝蛋白连接基序。 glr1262 产品最有可能充当连接藻红蛋白和藻蓝蛋白的杆连接子，而 glr2806 产品可能充当杆核连接子。我们分别将这两种蛋白质命名为 CpeG 和 CpcJ。据报道，G. violaceus 中藻胆体的形态是具有六个杆的束状形状，与这些接头的拟议功能一致。 (c) 2006 年欧洲生化学会联合会。由 Elsevier B.V. 出版。保留所有权利。
Two new linker proteins were identified by peptide mass fingerprinting in phycobilisomes isolated from the cyanobacterium Gloeobacter violaceus PCC 7421. The proteins were products of glr1262 and glr2806. Three tandem phycocyanin linker motifs similar to CpcC were present in each. The glr1262 product most probably functions as a rod linker connecting phycoerythrin and phycocyanin, while the glr2806 product may function as a rod-core linker. We have designated these two proteins CpeG and CpcJ, respectively. The morphology of phycobilisomes in G. violaceus has been reported to be a bundle-like shape with six rods, consistent with the proposed functions of these linkers. (c) 2006 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.