Natural HLA class I polymorphism controls the pathway of antigen presentation and susceptibility to viral evasion.
Natural HLA class I polymorphism controls the pathway of antigen presentation and susceptibility to viral evasion.
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DOI:
10.1084/jem.20031680
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发表时间:
2004-07-05
期刊:
影响因子:
--
通讯作者:
McCluskey J
中科院分区:
文献类型:
--
作者:
Zernich D;Purcell AW;Macdonald WA;Kjer-Nielsen L;Ely LK;Laham N;Crockford T;Mifsud NA;Bharadwaj M;Chang L;Tait BD;Holdsworth R;Brooks AG;Bottomley SP;Beddoe T;Peh CA;Rossjohn J;McCluskey J
HLA class I polymorphism creates diversity in epitope specificity and T cell repertoire. We show that HLA polymorphism also controls the choice of Ag presentation pathway. A single amino acid polymorphism that distinguishes HLA-B*4402 (Asp116) from B*4405 (Tyr116) permits B*4405 to constitutively acquire peptides without any detectable incorporation into the transporter associated with Ag presentation (TAP)-associated peptide loading complex even under conditions of extreme peptide starvation. This mode of peptide capture is less susceptible to viral interference than the conventional loading pathway used by HLA-B*4402 that involves assembly of class I molecules within the peptide loading complex. Thus, B*4402 and B*4405 are at opposite extremes of a natural spectrum in HLA class I dependence on the PLC for Ag presentation. These findings unveil a new layer of MHC polymorphism that affects the generic pathway of Ag loading, revealing an unsuspected evolutionary trade-off in selection for optimal HLA class I loading versus effective pathogen evasion.
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影响因子:
64.8
作者:
BENJAMIN, RJ;MADRIGAL, JA;PARHAM, P
通讯作者:
PARHAM, P
影响因子:
4.4
作者:
Barnden, MJ;Purcell, AW;McCluskey, J
通讯作者:
McCluskey, J
DOI:
10.1107/s0907444998003254
发表时间:
1998-09-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Brunger, AT;Adams, PD;Warren, GL
通讯作者:
Warren, GL
影响因子:
32.4
作者:
Lybarger, L;Wang, XL;Hansen, TH
通讯作者:
Hansen, TH
影响因子:
32.4
作者:
Lehner, PJ;Surman, MJ;Cresswell, P
通讯作者:
Cresswell, P