Characterization of HKE2: an ancient antigen encoded in the major histocompatibility complex

Genes at the centromeric end of the human leukocyte antigen region influence adaptive autoimmune diseases and cancer. In this study, we characterized protein expression of HKE2, a gene located in the centromeric portion of the class II region of the major histocompatibility complex encoding subunit...

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Veröffentlicht in:Tissue antigens 2007-02, Vol.69 (2), p.181-188
Hauptverfasser: Ostrov, D. A., Barnes, C. L., Smith, L. E., Binns, S., Brusko, T. M., Brown, A. C., Quint, P. S., Litherland, S. A., Roopenian, D. C., Iczkowski, K. A.
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container_end_page 188
container_issue 2
container_start_page 181
container_title Tissue antigens
container_volume 69
creator Ostrov, D. A.
Barnes, C. L.
Smith, L. E.
Binns, S.
Brusko, T. M.
Brown, A. C.
Quint, P. S.
Litherland, S. A.
Roopenian, D. C.
Iczkowski, K. A.
description Genes at the centromeric end of the human leukocyte antigen region influence adaptive autoimmune diseases and cancer. In this study, we characterized protein expression of HKE2, a gene located in the centromeric portion of the class II region of the major histocompatibility complex encoding subunit 6 of prefoldin. Immunohistochemical analysis using an anti‐HKE2 antibody indicated that HKE2 protein expression is dramatically upregulated as a consequence of activation. In a tissue microarray and in several tumors, HKE2 was overexpressed in certain cancers compared with normal counterparts. The localization of the HKE2 gene to the class II region, its cytoplasmic expression and putative protein‐binding domain suggest that HKE2 may function in adaptive immunity and cancer.
doi_str_mv 10.1111/j.1399-0039.2006.00730.x
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subjects Amino Acid Sequence
antigen processing
Binding Sites
Chromosome Mapping
class II MHC
Cytoplasm - chemistry
disease candidate gene
expressed sequence tag
Genes, MHC Class II - genetics
Hematopoietic Stem Cells - chemistry
Hematopoietic Stem Cells - metabolism
Humans
Immunohistochemistry
Molecular Chaperones - analysis
Molecular Chaperones - genetics
Molecular Chaperones - metabolism
Molecular Sequence Data
Neoplasms - chemistry
Neoplasms - metabolism
Protein Conformation
Tumor Cells, Cultured
title Characterization of HKE2: an ancient antigen encoded in the major histocompatibility complex
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