6GRF

Crystal structure of the tandem DUF26 ectodomain from the Arabidopsis thaliana cysteine-rich receptor-like protein PDLP8.

6GRF の概要

• エントリーDOI: 10.2210/pdb6grf/pdb
• 関連するPDBエントリー: 6GRE
• 分子名称: Cysteine-rich repeat secretory protein 15, 2-acetamido-2-deoxy-beta-D-glucopyranose (3 entities in total)
• 機能のキーワード: lectin, membrane protein, duf26 domain, disulfide bond, plasmodesmata, immune signaling, signaling protein
• 由来する生物種: Arabidopsis thaliana (thale cress)
• タンパク質・核酸の鎖数: 3
• 化学式量合計: 79758.97

構造登録者

Brandt, B.,Hothorn, M. (登録日: 2018-06-11, 公開日: 2018-12-19, 最終更新日: 2024-11-20)

主引用文献

Vaattovaara, A.,Brandt, B.,Rajaraman, S.,Safronov, O.,Veidenberg, A.,Luklova, M.,Kangasjarvi, J.,Loytynoja, A.,Hothorn, M.,Salojarvi, J.,Wrzaczek, M.
Mechanistic insights into the evolution of DUF26-containing proteins in land plants.
Commun Biol, 2:56-56, 2019

PubMed Abstract: Large protein families are a prominent feature of plant genomes and their size variation is a key element for adaptation. However, gene and genome duplications pose difficulties for functional characterization and translational research. Here we infer the evolutionary history of the DOMAIN OF UNKNOWN FUNCTION (DUF) 26-containing proteins. The DUF26 emerged in secreted proteins. Domain duplications and rearrangements led to the appearance of CYSTEINE-RICH RECEPTOR-LIKE PROTEIN KINASES (CRKs) and PLASMODESMATA-LOCALIZED PROTEINS (PDLPs). The DUF26 is land plant-specific but structural analyses of PDLP ectodomains revealed strong similarity to fungal lectins and thus may constitute a group of plant carbohydrate-binding proteins. CRKs expanded through tandem duplications and preferential retention of duplicates following whole genome duplications, whereas PDLPs evolved according to the dosage balance hypothesis. We propose that new gene families mainly expand through small-scale duplications, while fractionation and genetic drift after whole genome multiplications drive families towards dosage balance.

PubMed: 30775457
DOI: 10.1038/s42003-019-0306-9

実験手法

X-RAY DIFFRACTION (1.95 Å)