Structure and chromosomal location of mouse and human CD52 genes.

Human CD52 (CAMPATH-1 antigen) is an abundant surface molecule on lymphocytes and a favoured target for lymphoma therapy and immunosuppression. It comprises a small glycosylphosphatidylinositol (GPI) anchored peptide to which a large carbohydrate moiety is attached. Structurally similar proteins inc...

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Main Authors: Tone, M, Nolan, K, Walsh, L, Tone, Y, Thompson, SA, Waldmann, H
Format: Journal article
Language:English
Published: 1999
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author Tone, M
Nolan, K
Walsh, L
Tone, Y
Thompson, SA
Waldmann, H
author_facet Tone, M
Nolan, K
Walsh, L
Tone, Y
Thompson, SA
Waldmann, H
author_sort Tone, M
collection OXFORD
description Human CD52 (CAMPATH-1 antigen) is an abundant surface molecule on lymphocytes and a favoured target for lymphoma therapy and immunosuppression. It comprises a small glycosylphosphatidylinositol (GPI) anchored peptide to which a large carbohydrate moiety is attached. Structurally similar proteins include the proposed mouse homologue, B7 antigen (B7-Ag; not to be confused with the CD28 ligand), and human and mouse CD24. Sequence similarities between CD52 and B7-Ag precursors are concentrated over the signal peptides and the sequences cleaved during GPI attachment. While the short mature peptides are not apparently homologous, the N-linked glycosylation site is retained in both. We describe similarities in exon-intron organisation, syntenic chromosome positions (human CD52, 1p36; mouse B7-Ag, chromosome 4, between Dsil and D4Nds16) and sequence homology in the promoter regions which strongly suggests that B7-Ag is the mouse homologue of CD52. The structure of these genes is also similar to that of mouse CD24, suggesting a common ancestor. Promoter activities and transcription start sites were also analysed. These results suggest that human CD52 and mouse B7-Ag gene expressions are controlled by TATA-less promoters.
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spelling oxford-uuid:fa647784-40c9-4005-8faa-922728764dba2022-03-27T13:05:31ZStructure and chromosomal location of mouse and human CD52 genes.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fa647784-40c9-4005-8faa-922728764dbaEnglishSymplectic Elements at Oxford1999Tone, MNolan, KWalsh, LTone, YThompson, SAWaldmann, HHuman CD52 (CAMPATH-1 antigen) is an abundant surface molecule on lymphocytes and a favoured target for lymphoma therapy and immunosuppression. It comprises a small glycosylphosphatidylinositol (GPI) anchored peptide to which a large carbohydrate moiety is attached. Structurally similar proteins include the proposed mouse homologue, B7 antigen (B7-Ag; not to be confused with the CD28 ligand), and human and mouse CD24. Sequence similarities between CD52 and B7-Ag precursors are concentrated over the signal peptides and the sequences cleaved during GPI attachment. While the short mature peptides are not apparently homologous, the N-linked glycosylation site is retained in both. We describe similarities in exon-intron organisation, syntenic chromosome positions (human CD52, 1p36; mouse B7-Ag, chromosome 4, between Dsil and D4Nds16) and sequence homology in the promoter regions which strongly suggests that B7-Ag is the mouse homologue of CD52. The structure of these genes is also similar to that of mouse CD24, suggesting a common ancestor. Promoter activities and transcription start sites were also analysed. These results suggest that human CD52 and mouse B7-Ag gene expressions are controlled by TATA-less promoters.
spellingShingle Tone, M
Nolan, K
Walsh, L
Tone, Y
Thompson, SA
Waldmann, H
Structure and chromosomal location of mouse and human CD52 genes.
title Structure and chromosomal location of mouse and human CD52 genes.
title_full Structure and chromosomal location of mouse and human CD52 genes.
title_fullStr Structure and chromosomal location of mouse and human CD52 genes.
title_full_unstemmed Structure and chromosomal location of mouse and human CD52 genes.
title_short Structure and chromosomal location of mouse and human CD52 genes.
title_sort structure and chromosomal location of mouse and human cd52 genes
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