.png){kind=icon}
返回
Exploring proteins within the coccolith matrix
.png){kind=icon}
OA
AI
DOI：10.1038/s41598-024-83052-9.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Coccolithophores comprise a major component of the oceanic carbon cycle. These unicellular algae produce ornate structures made of calcium carbonate, termed coccoliths, representing similar to 50% of calcite production in the open ocean. The exact molecular mechanisms which direct and control coccolith formation are unknown. In this study, we report on the presence and functional features of proteins within the coccoliths produced by a range of model coccolithophore species including: the globally abundant and well-studied Gephyrocapsa huxleyi (formerly Emiliania huxleyi) and related Gephyrocapsa oceanica, as well as the larger and more heavily calcified Coccolithus braarudii. Protein features were compared between species and against biomineralisation proteins previously identified in other marine calcifying organisms. Notably, several protein features were consistently seen across the examined coccolithophore species, including the cell signalling 14-3-3 domain, chromosome segregation SMC ATPase domain, as well as proteins involved in protein processing and protease inhibition. The copper-binding cupredoxin domain was observed in both Gephyrocapsa species, as well as other marine calcifiers, suggestive of a requirement of Cu in biomineralisation. Building consensus with existing work, we highlight the pentapeptide repeat as a feature which is associated with the coccolith matrix, being identified in all three examined species, and propose that this structural motif may play a role in controlling coccolith growth. This preliminary study provides insight towards the functional diversity of calcification machinery in coccolithophores and presents a number of candidates for future research towards understanding the biochemical controls which direct coccolithogenesis.
Keyword:
Biomineralisation
Phytoplankton
Calcification
Coccolithophore
Carbon cycle
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
3.9
论文数:
28.0W
被引数:
83.5W
机构
引用论文
Interactive video conferencing: A means of providing interim care to parkinson's disease patients交互式视频会议: 为帕金森氏病患者提供临时护理的一种手段
PREAI
分享收藏Reproducible Evaluation of Diffusion MRI Features for Automatic Classification of Patients with Alzheimer’s Disease对阿尔茨海默病患者进行自动分类的扩散MRI特征的可重复评估OAAI
OAAI分享收藏分享收藏Coccolith crystals: Pure calcite or organic-mineral composite structures?.png)
ACTA BIOMATERIALIA
ACTA BIOMATERIALIAIF9.6
PREAI
分享收藏The variability in the structural and functional properties of coccolith base platesACTA BIOMATERIALIA
ACTA BIOMATERIALIAIF9.6
PREAI
分享收藏
查看更多内容