The Known, the New, and a Possible Surprise: A Re-Evaluation of the Nucleomorph-Encoded Proteome of Cryptophytes
The Known, the New, and a Possible Surprise: A Re-Evaluation of the Nucleomorph-Encoded Proteome of Cryptophytes
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已知的、新的和可能的惊喜:对隐植物核型编码蛋白质组的重新评估
DOI:
10.1093/gbe/evz109
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发表时间:
2019
影响因子:
3.3
通讯作者:
Maier UG
中科院分区:
文献类型:
--
作者:
Zauner S;Heimerl T;Moog D;Maier UG
Nucleomorphs are small nuclei that evolved from the nucleus of former eukaryotic endosymbionts of cryptophytes and chlorarachniophytes. These enigmatic organelles reside in their complex plastids and harbor the smallest and most compacted eukaryotic genomes investigated so far. Although the coding capacity of the nucleomorph genomes is small, a significant percentage of the encoded proteins (predicted nucleomorph-encoded proteins, pNMPs) is still not functionally annotated. We have analyzed pNMPs with unknown functions via Phyre2, a bioinformatic tool for prediction and modeling of protein structure, resulting in a functional annotation of 215 pNMPs out of 826 uncharacterized open reading frames of cryptophytes. The newly annotated proteins are predicted to participate in nucleomorph-specific functions such as chromosome organization and expression, as well as in modification and degradation of nucleomorph-encoded proteins. Additionally, we have functionally assigned nucleomorph-encoded, putatively plastid-targeted proteins among the reinvestigated pNMPs. Hints for a putative function in the periplastid compartment, the cytoplasm surrounding the nucleomorphs, emerge from the identification of pNMPs that might be homologs of endomembrane system-related proteins. These proteins are discussed in respect to their putative functions.
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影响因子:
3.3
作者:
D. K. Wong;C. Grisdale;N. M. Fast
通讯作者:
N. M. Fast
影响因子:
3.5
作者:
Hjorth, E;Hadfi, K;Maier, UG
通讯作者:
Maier, UG
影响因子:
3.3
作者:
Christopher Grosche;A. Diehl;S. Rensing;U. Maier
通讯作者:
U. Maier
DOI:
10.1073/pnas.97.1.200
发表时间:
2000
影响因子:
11.1
作者:
S. Zauner;M. Fraunholz;J. Wastl;S. Penny;M. Beaton;T. Cavalier;U. Maier;S. Douglas
通讯作者:
S. Douglas
影响因子:
4.8
作者:
Beilharz, T;Egan, B;Lithgow, T
通讯作者:
Lithgow, T