Table 1

A comparison of phenotypes observed in mTOR compromised mice (neo-containing mTOR KI; reduced mTOR protein levels) and neo-less mTOR KI mice (KIneo−; normal mTOR protein levels) relative to phenotypes seen in WT mice*

PhenotypemTOR KImTOR KIneo−
Body size Reduced by 30% Normal 
Organ sizes Spleens much smaller Spleens normal 
Cell sizes Reduced Normal 
mTOR protein levels Reduced by 70% Normal 
RAPTOR protein levels Decreased Normal 
RICTOR protein levels Decreased Normal 
DEPTOR protein levels Slightly increased Normal 
mTORC1 target pS6K Decreased Normal 
mTORC1 target p4EBP1 Decreased (BM) Decreased (BM) 
mTORC2 target pAKTSer473 Decreased Normal 
mTORC1 target pS6K activated T cells Decreased Normal 
mTORC1 target pS6K activated B cells Decreased Normal 
mTORC1 target pS6K insulin-stimulate MEFs Decreased Not tested 
mTORC2 target pAKT activated T cells Decreased Normal 
mTORC2 target pAKT activated B cells Increased Normal 
mTORC2 target pAKT insulin-stimulated MEFs Decreased Not tested 
Thymic T cells Reduced Normal 
Splenic T cells Reduced/fewer memory Normal 
LN T cells Reduced Normal 
Proliferation rates of splenic T cells Reduced/defective Normal 
BM B cells Reduced/partial block Normal 
Splenic B cells Reduced/fewer T1, MZ, FO Normal 
LN B cells Reduced Normal 
Proliferation/survival splenic B cells Reduced/defective Normal 
Antibody production Reduced Normal 
BM Gr1+ cells Normal Not tested 
Splenic Gr1+ cells Decreased Not tested 
BM Mac-1+ cells Normal Not tested 
Splenic Mac-1+ cells Decreased Not tested 
T-cell migration in spleen, SDF, TECK Decreased Not tested 
T-cell migration in spleen, MIP3B Normal Not tested 
B-cell migration in spleen, SDF, S1P Decreased Not tested 
Neutrophil migration in BM, fMLP Normal Not tested 
PhenotypemTOR KImTOR KIneo−
Body size Reduced by 30% Normal 
Organ sizes Spleens much smaller Spleens normal 
Cell sizes Reduced Normal 
mTOR protein levels Reduced by 70% Normal 
RAPTOR protein levels Decreased Normal 
RICTOR protein levels Decreased Normal 
DEPTOR protein levels Slightly increased Normal 
mTORC1 target pS6K Decreased Normal 
mTORC1 target p4EBP1 Decreased (BM) Decreased (BM) 
mTORC2 target pAKTSer473 Decreased Normal 
mTORC1 target pS6K activated T cells Decreased Normal 
mTORC1 target pS6K activated B cells Decreased Normal 
mTORC1 target pS6K insulin-stimulate MEFs Decreased Not tested 
mTORC2 target pAKT activated T cells Decreased Normal 
mTORC2 target pAKT activated B cells Increased Normal 
mTORC2 target pAKT insulin-stimulated MEFs Decreased Not tested 
Thymic T cells Reduced Normal 
Splenic T cells Reduced/fewer memory Normal 
LN T cells Reduced Normal 
Proliferation rates of splenic T cells Reduced/defective Normal 
BM B cells Reduced/partial block Normal 
Splenic B cells Reduced/fewer T1, MZ, FO Normal 
LN B cells Reduced Normal 
Proliferation/survival splenic B cells Reduced/defective Normal 
Antibody production Reduced Normal 
BM Gr1+ cells Normal Not tested 
Splenic Gr1+ cells Decreased Not tested 
BM Mac-1+ cells Normal Not tested 
Splenic Mac-1+ cells Decreased Not tested 
T-cell migration in spleen, SDF, TECK Decreased Not tested 
T-cell migration in spleen, MIP3B Normal Not tested 
B-cell migration in spleen, SDF, S1P Decreased Not tested 
Neutrophil migration in BM, fMLP Normal Not tested 
*

See supplemental Figure 11.

The mTORC1 downstream target 4EBP1 showed decreased phosphorylation in the BM of KIneo− mice and represents the only observed phenotype attributable to the 628C allele.

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