Further characterization of the binding properties of a GalNAc specific lectin from Codium fragile subspecies tomentosoides.
Further characterization of the binding properties of a GalNAc specific lectin from Codium fragile subspecies tomentosoides.
复制标题
脆性毛藻亚种 GalNAc 特异性凝集素的结合特性的进一步表征。
DOI:
10.1093/glycob/7.8.1061
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发表时间:
1997
期刊:
影响因子:
4.3
通讯作者:
Kabat,EA
中科院分区:
文献类型:
--
作者:
Wu,AM;Song,SC;Chang,SC;Wu,JH;Chang,KS;Kabat,EA
Previous study on the binding properties of a lectin isolated fromCodium fragilesubspeciestomentosoides(CFT) indicates that this lectin recognizes the GalNAcα1→ sequence at both reducing and nonreducing ends. In this study, the carbohydrate specificity of CFT was further characterized by quantitative precipitin (QPA) and inhibition of lectin-enzyme binding assays. Of the glycoforms tested for QPA, all asialo-GalNAcα1→ containing glyco-proteins reacted well with the lectin. Asialo hamster and ovine submandibular glycoproteins, which contain almost exclusively Tn (GalNAcαl→Ser/Thr) residues as carbohydrate side chains, andStreptococcustype C polysaccharide completely precipitated the lectin added, while the GalNAcβ→containing Tamm-Horsfall Sd(a+) glycopro-tein and its asialo product were inactive. Among the oligo-saccharides tested for inhibiting lectin-glycoprotein interaction, GalNAcα1→3GalNAcβ1→3Galα1→4Galβ1→4GIc(Fp) and Galβ1→3GalNAcα1→benzyl (Tα) were the best, and about 125-fold more active than GalNAc They were about 3.3, 6.6, and 43 times more active than Tn containing glycopeptides, GalNAcα1→3(LFucα1→ 2)Gal(Ah) and Galβ1→3GalNAc(T), respectively. From the present and previous results, it is concluded that the combining site of CFT is probably of a groove type that recognizes from GalNAcαl→ to pentasaccharide(Fp). The carbohydrate specificity of this lectin can be constructed and summarized in decreasing order by lectin determinants as follows: Fp and Tα > Tn cluster > Ah≫I/II.
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DOI:
10.1016/0006-291x(72)90633-x
发表时间:
1972
影响因子:
3.1
作者:
Yuan Lin;J. Duman;A. Devries
通讯作者:
A. Devries
影响因子:
--
作者:
Ephraim Katchalski;D. Kritchevsky;Carl R. Honig;T. K. Goldstick;F. Bruley;Raymond Vanholder;S. G. Massry;Z. Atassi;M. R. Fedde
通讯作者:
M. R. Fedde
影响因子:
3.1
作者:
A. M. Wu;Shunji Sugii;F. Gruezo;E. A. Kabat
通讯作者:
E. A. Kabat
DOI:
10.1016/s0006-291x(83)80190-9
发表时间:
1983-01-01
影响因子:
3.1
作者:
DONALD, ASR;YATES, AD;WATKINS, WM
通讯作者:
WATKINS, WM
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
E. Lisowska;M. Duk;A. M. Wu
通讯作者:
A. M. Wu