{"title":"多能性幹細胞におけるグリコサミノグライカンの機能","authors":"Chika Ogura, Shoko Nishihara","doi":"10.4052/tigg.2206.1j","DOIUrl":"https://doi.org/10.4052/tigg.2206.1j","url":null,"abstract":"細胞表面や細胞外マトリックスに存在するグリコサミノグライカン(GAG)は、特徴的な二糖繰返し構造をもち、硫酸転移酵素により硫酸化修飾を受ける。この二糖繰返し構造と硫酸化パターンの組合せにより、GAGは特定のシグナルリガンドもしくは受容体と結合し、シグナル伝達の調節に寄与する。","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Functions of Glycosaminoglycan in Pluripotent Stem Cells","authors":"Chika Ogura, Shoko Nishihara","doi":"10.4052/tigg.2206.1e","DOIUrl":"https://doi.org/10.4052/tigg.2206.1e","url":null,"abstract":"Glycosaminoglycans (GAGs) on the cell surface and in the extra cellular matrix have multiple biological roles, including cell signaling. They have a characteristic repeating disaccharide structure and are sulfated by sulfotransferases, the resulting combination of which governs which signal ligands bind to them.","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structural Analysis of GPI-glycans from GPI-anchored Proteins by Mass Spectrometry","authors":"Miyako Nakano","doi":"10.4052/tigg.2209.1j","DOIUrl":"https://doi.org/10.4052/tigg.2209.1j","url":null,"abstract":"グリコシルホスファチジルイノシトール(Glycosylphosphatidylinositol, GPI)アンカー型タンパク質(GPI-APs)とは、細胞膜上の糖脂質(GPI)によりアンカーされている一群のタンパク質であり、真核生物において広く存在している。GPI部分は、ホスファチジルイノシトール、グルコサミン、3つのマンノース、そしてエタノールアミンリン酸を基本構造とし、この基本構造と、それを介したタンパク質の膜へのアンカーの仕組みは、生物間でよく保存されている。発作性夜間ヘモグロビン尿症を初め、GPIアンカー欠損症が次々と見いだされている。これらの疾患を理解するためにも、GPIアンカーの生合成、つまり、糖鎖と脂質のリモデリング過程を知ることは大変重要である。本稿では、リモデリング過程を観察するために、リモデリングを触媒する酵素をコードする遺伝子をノックアウトした出芽酵母の変異株と、GPI-APsのモデル分子を用いて、GPIアンカー中の糖鎖の構造を液体クロマトグラフィー-エレクトロスプレーイオン化質量分析(LC-ESI MS)により分析・解析する方法を紹介する。","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"LYSET is a New Factor Critical for Lysosomal Enzyme Transport and Viral Infection","authors":"Yuko Tashima","doi":"10.4052/tigg.2317.6j","DOIUrl":"https://doi.org/10.4052/tigg.2317.6j","url":null,"abstract":"","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"LYSET is a New Factor Critical for Lysosomal Enzyme Transport and Viral Infection","authors":"Yuko Tashima","doi":"10.4052/tigg.2317.6e","DOIUrl":"https://doi.org/10.4052/tigg.2317.6e","url":null,"abstract":"","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Significance of Sulfated Glycans on Mucins in the Gut","authors":"Hirohito Abo, Hiroto Kawashima","doi":"10.4052/tigg.2219.1j","DOIUrl":"https://doi.org/10.4052/tigg.2219.1j","url":null,"abstract":"腸管において、ムチンは腸内細菌と宿主を隔てる物理的バリアとして機能する。MUC2ムチンは、高度にO結合型糖鎖修飾を受けた糖タンパク質で、付加する糖鎖はムチンの機能発現に必須の翻訳後修飾である。近年、複雑な構造をもつMUC2糖鎖の特定の構造単位が特有の生理機能を果たすことが見出されつつある。特に、ムチン糖鎖におけるN-アセチルガラクトサミンとガラクトースの硫酸化は、腸管バリア機能に必須の糖鎖構造であることが示された。また、腸内細菌は特定の硫酸基分解酵素を用いることで、ムチン糖鎖を栄養源として利用し、腸へと生着する。一方、腸内細菌は糖転移酵素の発現誘導を介して、宿主の糖鎖修飾を制御する。このように、昨今のムチン糖鎖の構造と機能に関する研究から、ムチンは単に物理的バリアとして機能するのではなく、腸内細菌との複雑な相互作用を制御する分子であることが明らかにされつつある。本稿では、 MUC2ムチンおよびその糖鎖修飾の機能に触れながら、特にムチン糖鎖の硫酸化修飾について解説したい。","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135770967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Recent Advances in Research on the Biosynthetic Pathways of Arabinoxylan and Its Health Functionality","authors":"Shiro Suzuki, Seichi Suzuki, Kouki Yoshida","doi":"10.4052/tigg.2116.1e","DOIUrl":"https://doi.org/10.4052/tigg.2116.1e","url":null,"abstract":"Arabinoxylan (AX) is the major hemicellulose in grass cell walls as a component of lignocellulosic biomass with the highest abundance and yield on terrestrial land area. AX is an obstacle for biomass saccharification as the structural polysaccharides linked to lignin from the supporting tissues like culm and sheath of the grass energy crops, while it has immunomodulatory and prebiotic functions as the dietary fibers from cereal grains. AX is thus interesting from two points of view: the use of a carbon-neutral and renewable energy resource and the use of a healthy functional polysaccharide like barley β-glucan. Elucidation of its fine structures and biosynthetic mechanisms contributes the field evaluation of energy crops and cereal cultivars, as well as for functional food developments. This review outlines the current research status of the chemical structure and biosynthetic mechanism of AX, together with the development of its use as a health-functional polysaccharide.","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135770973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of a glycoRNA Detection Tool and Biological Roles of glycoRNA","authors":"Haruhiko Fujihira","doi":"10.4052/tigg.2326.6e","DOIUrl":"https://doi.org/10.4052/tigg.2326.6e","url":null,"abstract":"","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135859182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Motoko Takahashi, N. Fujitani, Y. Uehara, Y. Hasegawa
{"title":"受容体型チロシンキナーゼの部位特異的N型糖鎖解析","authors":"Motoko Takahashi, N. Fujitani, Y. Uehara, Y. Hasegawa","doi":"10.4052/tigg.2212.1j","DOIUrl":"https://doi.org/10.4052/tigg.2212.1j","url":null,"abstract":"","PeriodicalId":55609,"journal":{"name":"Trends in Glycoscience and Glycotechnology","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2023-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43988087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}