Molecular modeling of the minor histocompatibility antigen HA-1 peptides binding to HLA-A alleles

E. C. Ren, P. Kangueane, Prasanna Kolatkar, M. T. Lin, L. H. Tseng, J. A. Hansen

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Mismatch of the minor histocompatibility antigen HA-1 has been shown to correlate with graft-versus-host disease in HLA-matched sibling marrow transplants. The HA-1(H) peptide (VLHDDLLEA) that generates this response is known to be presented by HLA-A*0201. In order to understand the interaction of HA-1 peptides with other HLA-A alleles, we have used the LOOK interface to construct molecular models of both HA-1(H) peptide (VLHDDLLEA) and HA-1(R) peptide (VLRDDLLEA) binding with 103 HLA-A alleles. The results show that in addition to A*0201, 21/103 other HLA-A alleles should be able to bind HA-1(H) peptide but not HA-1(R) peptide. Based on the modeled predictions, HLA alleles can be categorised into 4 groups with respect to their interaction with HA-1 peptides: Group 1 - bind HA-1(H) peptide but not HA-1(R) peptide; Group 2 - bind HA-1(R) peptide but not HA-1(H) peptide; Group 3 - bind both HA-1(H) and HA-1(R) peptides; Group 4 - bind neither peptide. These predicted binding patterns of HA-1 peptides will be useful as an aid for defining a wider pool of HLA-A alleles in which HA-1 disparities among donor-recipient pairs can be investigated.

Original languageEnglish
Pages (from-to)24-30
Number of pages7
JournalTissue Antigens
Volume55
Issue number1
DOIs
Publication statusPublished - 10 Feb 2000
Externally publishedYes

Fingerprint

Minor Histocompatibility Antigens
HLA-A Antigens
Alleles
Peptides
Molecular Models
Graft vs Host Disease
Bone Marrow
R peptide
Transplants

Keywords

  • HA-1
  • HLA-A
  • Minor histocompatibility antigen
  • Molecular modeling
  • Peptides
  • Stem cell transplant

ASJC Scopus subject areas

  • Immunology
  • Cell Biology

Cite this

Molecular modeling of the minor histocompatibility antigen HA-1 peptides binding to HLA-A alleles. / Ren, E. C.; Kangueane, P.; Kolatkar, Prasanna; Lin, M. T.; Tseng, L. H.; Hansen, J. A.

In: Tissue Antigens, Vol. 55, No. 1, 10.02.2000, p. 24-30.

Research output: Contribution to journalArticle

Ren, E. C. ; Kangueane, P. ; Kolatkar, Prasanna ; Lin, M. T. ; Tseng, L. H. ; Hansen, J. A. / Molecular modeling of the minor histocompatibility antigen HA-1 peptides binding to HLA-A alleles. In: Tissue Antigens. 2000 ; Vol. 55, No. 1. pp. 24-30.
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