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Escape of antigens from phagosome to cytosol
Stable Identifier
R-HSA-1236972
Type
Reaction [omitted]
Species
Homo sapiens
Compartment
phagolysosome
,
cytosol
ReviewStatus
5/5
Locations in the PathwayBrowser
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Immune System (Homo sapiens)
Adaptive Immune System (Homo sapiens)
Class I MHC mediated antigen processing & presentation (Homo sapiens)
Antigen processing-Cross presentation (Homo sapiens)
Cross-presentation of particulate exogenous antigens (phagosomes) (Homo sapiens)
Escape of antigens from phagosome to cytosol (Homo sapiens)
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The layout of this reaction may differ from that in the pathway view due to the constraints in pathway layout
Upon phagolysosomal proteolysis the phagocytosed proteins still need to gain access to the cytosol for proteasomal access, transport into the ER and loading onto MHC class I. The mechanism for this escape of phagocytosed antigens remains unknown.
Literature References
PubMed ID
Title
Journal
Year
8612129
In vivo cross-priming of MHC class I-restricted antigens requires the TAP transporter
Bruce, AT
,
Levitsky, HI
,
Pardoll, DM
,
Huang, AY
Immunity
1996
7809629
A phagosome-to-cytosol pathway for exogenous antigens presented on MHC class I molecules
Rock, KL
,
Kovacsovics-Bankowski, M
Science
1995
Participants
Input
partially digested Ag [phagolysosome]
Output
partially digested Ag [cytosol]
Participates
as an event of
Cross-presentation of particulate exogenous antigens (phagosomes) (Homo sapiens)
Authored
Garapati, P V (2011-03-28)
Reviewed
English, L (2011-05-13)
Desjardins, M (2011-05-13)
Created
Garapati, P V (2011-03-28)
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