Isolation and characterization of 5T4, a tumour‐associated antigen
Isolation and characterization of 5T4, a tumour‐associated antigen
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肿瘤相关抗原 5T4 的分离和表征
DOI:
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发表时间:
1990
影响因子:
6.4
通讯作者:
P. Stern
中科院分区:
文献类型:
--
作者:
N. Hole;P. Stern
The monoclonal antibody (MAb) 5T4 defines a human trophoblast antigen marker with a restricted pattern of expression in normal adult tissues but this antigen is expressed on a variety of carcinomas. The purification of 5T4 antigenic molecules is described from term syncytiotrophoblast by a combination of lectin‐ and immunoaffinity chromatography and gel filtration giving up to 10,000‐fold purification with 70% yield. The antigen is carried by non‐associated glycoprotein molecules with an apparent molecular weight of 72 kDa on SDS‐PAGE and a neutral pl. Removal of N‐linked sugars by N‐glycanase reveals a core protein of 42 kDa. Treatment with enzymes that cleave O‐linked sugars does not substantially alter the molecular size. The native 5T4 molecules are very resistant to proteolysis until the N‐linked sugars are removed or the glycoprotein is denatured and reduced. Glycopeptides generated by these approaches will be suitable for amino acid sequencing.
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DOI:
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发表时间:
1984-09
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
T. Plummer;J. Elder;S. Alexander;A. W. Phelan;A. Tarentino
通讯作者:
T. Plummer;J. Elder;S. Alexander;A. W. Phelan;A. Tarentino
DOI:
10.1042/bj2410615
发表时间:
1987
期刊:
The Biochemical journal
影响因子:
--
作者:
Low,MG;Futerman,AH;Ackermann,KE;Sherman,WR;Silman,I
通讯作者:
Silman,I
DOI:
--
发表时间:
1987
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Hunt,JS;Andrews,GK;Wood,GW
通讯作者:
Wood,GW
DOI:
10.1073/pnas.85.9.3110
发表时间:
1988-05-01
影响因子:
11.1
作者:
RETTIG, WJ;GARINCHESA, P;OLD, LJ
通讯作者:
OLD, LJ