Sulphate groups are involved in the antigenicity of keratan sulphate and mask i antigen expression on their poly-N-acetyllactosamine backbones. An immunochemical and chromatographic study of keratan sulphate oligosaccharides after desulphation or nitrosation.
Sulphate groups are involved in the antigenicity of keratan sulphate and mask i antigen expression on their poly-N-acetyllactosamine backbones. An immunochemical and chromatographic study of keratan sulphate oligosaccharides after desulphation or nitrosation.
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硫酸基团参与硫酸角质素的抗原性并掩盖其聚-N-乙酰基乳糖胺主链上的抗原表达。
DOI:
--
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发表时间:
1986
期刊:
影响因子:
--
通讯作者:
T. Feizi
中科院分区:
文献类型:
--
作者:
P. Tang;P. Scudder;H. Mehmet;E. Hounsell;T. Feizi
Conditions were established for desulphation of hexa-, octa-, deca- and larger oligosaccharides derived from corneal keratan sulphate after treatment with endo-beta-galactosidase. The antigenicities of the desulphated oligosaccharides were compared with those of the native oligosaccharides in chromatogram binding, plastic-plate binding or inhibition of binding assays using a novel microimmunochemical approach with oligosaccharide-lipid conjugates (neoglycolipids). The results clearly show that sulphate residues are essential components of the antigenic determinant(s) recognised by three monoclonal antibodies to keratan sulphate, 5-D-4, 1-B-4 and MZ15, but they mask the i antigen activity of the linear poly-(N-acetyllactosamine) backbones of this glycosaminoglycan. Immunochemical assays, before and after beta-N-acetylglucosaminidase treatment of desulphated linear hexa-, octa- and decasaccharides derived from keratan sulphate, indicate that for reaction with one anti-i antibody, Den, there is an absolute requirement for the non-reducing beta-galactosyl residue of the i antigen structure to be in the terminal position, but with a second anti-i antibody, Tho, there is in addition some reactivity with the i antigen structure having an N-acetylglucosamine residue at the non-reducing end. The chromatographic properties after desulphation or nitrosation of a minor keratan sulphate oligosaccharide (a dodecasaccharide), which reacts especially well with antibody 5-D-4, have provided the first evidence for the presence of glucosamine residues that may be N-sulphated in corneal keratan sulphate.
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DOI:
10.1016/0167-4889(85)90106-5
发表时间:
1985
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Uemura,K;Macher,BA;DeGregorio,M;Scudder,P;Buehler,J;Knapp,W;Feizi,T
通讯作者:
Feizi,T
DOI:
--
发表时间:
1984
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Fukuda,M;Dell,A;Oates,JE;Fukuda,MN
通讯作者:
Fukuda,MN
DOI:
10.1016/0006-291x(85)91158-1
发表时间:
1985
影响因子:
3.1
作者:
Tang,PW;Gool,HC;Hardy,M;Lee,YC;Feizi,T
通讯作者:
Feizi,T
影响因子:
2
作者:
SundarRaj,N;Willson,J;Gregory,JD;Damle,SP
通讯作者:
Damle,SP
DOI:
--
发表时间:
1983
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Caterson,B;Christner,JE;Baker,JR
通讯作者:
Baker,JR