Characterization of the CAMPATH-1 (CDw52) antigen: biochemical analysis and cDNA cloning reveal an unusually small peptide backbone.
The CAMPATH-1 (CDw52) antigen has been purified from human spleen. The antigenic epitope is heat stable but sensitive to mild alkali treatment. Experiments with phosphatidylinositol-specific phospholipase C indicate that it is anchored by a glycosylphosphatidylinositol (GPI) anchor. An N-terminal se...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Sprog: | English |
| Udgivet: |
1991
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| _version_ | 1826256936112226304 |
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| author | Xia, M Tone, M Packman, L Hale, G Waldmann, H |
| author_facet | Xia, M Tone, M Packman, L Hale, G Waldmann, H |
| author_sort | Xia, M |
| collection | OXFORD |
| description | The CAMPATH-1 (CDw52) antigen has been purified from human spleen. The antigenic epitope is heat stable but sensitive to mild alkali treatment. Experiments with phosphatidylinositol-specific phospholipase C indicate that it is anchored by a glycosylphosphatidylinositol (GPI) anchor. An N-terminal sequence of 11 amino acids was determined, followed by an abrupt stop. Using short overlapping mixed oligonucleotide primers, cDNA synthesized from the mRNA of a human B cell line was amplified by the polymerase chain reaction. The product was used to isolate cDNA clones and the full amino acid sequence of the CAMPATH-1 antigen was deduced. It consists of 37 amino acid residues plus a 24-residue signal peptide. It has all the features expected for a GPI-anchored membrane protein except that the predicted mature protein is remarkably short, comprising no more than 18 residues and possibly as few as 12 (depending on the GPI linkage site). Potential attachment sites for carbohydrate are present and it is shown that the antigen contains N-linked oligosaccharide(s). This structure accounts for the known properties of the antigen, though the exact reasons why it is such a good target for cell lysis in vitro and in vivo are not yet clear. |
| first_indexed | 2024-03-06T18:10:10Z |
| format | Journal article |
| id | oxford-uuid:02bf0b1e-ffdc-42e9-8b35-95c7e176e38b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:10:10Z |
| publishDate | 1991 |
| record_format | dspace |
| spelling | oxford-uuid:02bf0b1e-ffdc-42e9-8b35-95c7e176e38b2022-03-26T08:42:25ZCharacterization of the CAMPATH-1 (CDw52) antigen: biochemical analysis and cDNA cloning reveal an unusually small peptide backbone.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:02bf0b1e-ffdc-42e9-8b35-95c7e176e38bEnglishSymplectic Elements at Oxford1991Xia, MTone, MPackman, LHale, GWaldmann, HThe CAMPATH-1 (CDw52) antigen has been purified from human spleen. The antigenic epitope is heat stable but sensitive to mild alkali treatment. Experiments with phosphatidylinositol-specific phospholipase C indicate that it is anchored by a glycosylphosphatidylinositol (GPI) anchor. An N-terminal sequence of 11 amino acids was determined, followed by an abrupt stop. Using short overlapping mixed oligonucleotide primers, cDNA synthesized from the mRNA of a human B cell line was amplified by the polymerase chain reaction. The product was used to isolate cDNA clones and the full amino acid sequence of the CAMPATH-1 antigen was deduced. It consists of 37 amino acid residues plus a 24-residue signal peptide. It has all the features expected for a GPI-anchored membrane protein except that the predicted mature protein is remarkably short, comprising no more than 18 residues and possibly as few as 12 (depending on the GPI linkage site). Potential attachment sites for carbohydrate are present and it is shown that the antigen contains N-linked oligosaccharide(s). This structure accounts for the known properties of the antigen, though the exact reasons why it is such a good target for cell lysis in vitro and in vivo are not yet clear. |
| spellingShingle | Xia, M Tone, M Packman, L Hale, G Waldmann, H Characterization of the CAMPATH-1 (CDw52) antigen: biochemical analysis and cDNA cloning reveal an unusually small peptide backbone. |
| title | Characterization of the CAMPATH-1 (CDw52) antigen: biochemical analysis and cDNA cloning reveal an unusually small peptide backbone. |
| title_full | Characterization of the CAMPATH-1 (CDw52) antigen: biochemical analysis and cDNA cloning reveal an unusually small peptide backbone. |
| title_fullStr | Characterization of the CAMPATH-1 (CDw52) antigen: biochemical analysis and cDNA cloning reveal an unusually small peptide backbone. |
| title_full_unstemmed | Characterization of the CAMPATH-1 (CDw52) antigen: biochemical analysis and cDNA cloning reveal an unusually small peptide backbone. |
| title_short | Characterization of the CAMPATH-1 (CDw52) antigen: biochemical analysis and cDNA cloning reveal an unusually small peptide backbone. |
| title_sort | characterization of the campath 1 cdw52 antigen biochemical analysis and cdna cloning reveal an unusually small peptide backbone |
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