Molecular diversity and evolutionary trends of cysteine-rich peptides from the venom glands of Chinese spider Heteropoda venatoria.
Molecular diversity and evolutionary trends of cysteine-rich peptides from the venom glands of Chinese spider Heteropoda venatoria.
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中国蜘蛛毒腺富含半胱氨酸肽的分子多样性和进化趋势。
DOI:
10.1038/s41598-021-82668-5
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发表时间:
2021-02-05
影响因子:
4.6
通讯作者:
Chen J
中科院分区:
文献类型:
--
作者:
Luo J;Ding Y;Peng Z;Chen K;Zhang X;Xiao T;Chen J
Heteropoda venatoria in the family Sparassidae is highly valued in pantropical countries because the species feed on domestic insect pests. Unlike most other species of Araneomorphae, H. venatoria uses the great speed and strong chelicerae (mouthparts) with toxin glands to capture the insects instead of its web. Therefore, H. venatoria provides unique opportunities for venom evolution research. The venom of H. venatoria was explored by matrix-assisted laser desorption/ionization tandem time-of-flight and analyzing expressed sequence tags. The 154 sequences coding cysteine-rich peptides (CRPs) revealed 24 families based on the phylogenetic analyses of precursors and cysteine frameworks in the putative mature regions. Intriguingly, four kinds of motifs are first described in spider venom. Furthermore, combining the diverse CRPs of H. venatoria with previous spider venom peptidomics data, the structures of precursors and the patterns of cysteine frameworks were analyzed. This work revealed the dynamic evolutionary trends of venom CRPs in H. venatoria: the precursor has evolved an extended mature peptide with more cysteines, and a diminished or even vanished propeptides between the signal and mature peptides; and the CRPs evolved by multiple duplications of an ancestral ICK gene as well as recruitments of non-toxin genes.
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影响因子:
10.7
作者:
Junqueira-de-Azevedo IL;Bastos CM;Ho PL;Luna MS;Yamanouye N;Casewell NR
通讯作者:
Casewell NR
影响因子:
2.8
作者:
Chen, Jinjun;Zhao, Liqun;Liang, Songping
通讯作者:
Liang, Songping
影响因子:
2.8
作者:
Craik, DJ;Daly, NL;Waine, C
通讯作者:
Waine, C
影响因子:
10.7
作者:
Garb JE;Hayashi CY
通讯作者:
Hayashi CY
影响因子:
4.6
作者:
Kaur G;Iyer LM;Subramanian S;Aravind L
通讯作者:
Aravind L