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. 2010 May 13;9(9):1937–1953. doi: 10.1074/mcp.M900483-MCP200

Table I. Comparison of protein abundance changes determined by iTRAQ labeling of nuclear fractions from IL-4-treated anti-CD3/CD28-activated CD4+ cells versus anti-CD3/CD28-activated CD4+ cells at 6 and 24 h with LC-MS/MS analysis.

The iTRAQ ratios (Th2/Th0) are relative to the protein abundance of the activated cells (without IL-4) at the equivalent time points. The values are, unless otherwise stated, based on the weighted average from three biological replicates. These values were estimated using a random effect model. The inclusion criteria for these proteins are based on an absolutes Z score greater than 1.96 (p < 0.05), an abundance change greater than 20% (up or down), detection of the proteins in all three iTRAQ experiments, two or more associated peptides, and five or more iTRAQ ratios. Some exceptions are marked. The p values were calculated from the normal distribution of the absolute value of the Z score. PQ seq., number of unique peptides detected by ProQuant; Tot. calcs., total number of calculations used; Cov., coverage; NA, not applicable.

Accession Name GO location iTRAQ 6-h ratio +/− 6-h p value 6-h FDR iTRAQ 24-h ratio +/− 24-h p value FDR PQ seq. Tot. calcs. Cov.
%
Th2 association
    STAT6_HUMAN (P42226) Signal transducer and activator of transcription 6 Nucleus, cytoplasm 1.32 0.12 0.001 0.02 1.07 0.15 0.60 0.86 3 10 5
    SATB1_HUMAN (Q01826) DNA-binding protein SATB1 Nucleus 1.12 0.03 e−05 e−04 1.24 0.08 0.001 0.018 11 47 14
    IKZF1_HUMANa (Q13422) DNA-binding protein Ikaros Intracellular, nucleus 1.04 0.03 0.15 0.56 1.21 0.11 0.046 0.25 5 31 18
Interferon-related
    TRI22_HUMAN (Q8IYM9) Tripartite motif-containing protein 22 Intracellular, nucleus 0.82 0.08 0.055 0.32 0.81 0.07 0.018 0.143 3 9 9
    STAT1_HUMANb (P42224) Signal transducer and activator of transcription 1-α/β Cytoplasm, nucleus 0.95 0.06 0.39 0.81 0.81 0.12 0.16 0.51 8 19 5
    IF16_HUMANa,b (Q16666) g-Interferon-inducible protein IFI16 Nucleus, cellular component 0.99 0.02 0.75 0.95 0.85 0.04 0.001 0.012 22 142 39
    TBX21_HUMANc (Q9UL17) T box transcription factor TBX21 Nucleus 0.98 0.09 0.83 NA 0.64 0.11 0.01 NA 2 5 4
    TCF7_HUMANd (P36402) Transcription factor 7 (T cell-specific transcription factor 1) Cytoplasm, membrane, nucleus 0.95 0.04 0.17 0.60 0.75 0.03 e−08 2·e−6 2 13 8
Other
    YBOX1_HUMAN (P67809) Nuclease-sensitive element-binding protein 1 (Y box-binding protein 1) Nucleus 1.23 0.10 0.11 0.50 1.65 0.30 0.006 0.069 4 18 30
    G10_HUMANa (P41223) Protein BUD31 homolog (protein G10 homolog) (EDG-2) Nucleus 0.97 0.05 0.68 0.92 1.24 0.05 e−08 e−06 3 10 26
    AKAP8_HUMAN (O43823) Protein kinase A anchor protein 8 Intracellular, membrane, nucleus, chromosome 1.10 0.06 0.26 0.70 1.24 0.13 0.045 0.25 3 9 6
    RPB1_HUMANa (P24928) DNA-directed RNA polymerase II largest subunit Nucleus, cellular component 1.45 0.17 0.046 0.29 0.86 0.33 0.70 0.90 2 5 3
    TAF10_HUMAN (Q12962) Transcription initiation factor TFIID subunit 10 Nucleus, cytoplasm, cellular component 1.59 0.14 0.002 0.03 0.90 0.06 0.095 0.42 2 14 2
    RL5_HUMANa (P46777) 60 S ribosomal protein L5 Intracellular, nucleus 1.36 0.13 0.042 0.27 1.66 0.35 0.016 0.13 6 23 27
    RFC1_HUMANa (P35251) Replication factor C subunit 1 Nucleus, chromosome 1.01 0.03 0.75 0.94 1.24 0.13 0.038 0.23 7 17 10
    MP2K3_HUMANe (P46734) Dual specificity mitogen-activated protein kinase kinase 3 1.82 0.08 e−15 0.00 0.92 0.04 0.086 0.38 1 11 9
    CD3E_HUMANa (P07766) T cell surface glycoprotein CD3 ϵ chain precursor Cell surface, membrane 1.25 0.10 0.004 0.05 1.16 0.07 0.016 0.132 2 10 14
    CD5_HUMAN (P06127) T cell surface glycoprotein CD5 precursor Cell surface, membrane 0.90 0.07 0.142 0.55 0.73 0.07 0.001 0.015 3 9 15
    CD45_HUMANa (P08575) Leukocyte common antigen precursor Membrane 0.99 0.05 0.864 0.97 0.80 0.09 0.043 0.244 6 33 6
    CD44_HUMAN (P16070) CD44 antigen precursor Cell surface, membrane 0.91 0.04 0.032 0.23 0.77 0.09 0.027 0.191 6 46 10
    GLU2B_HUMANa (P14314) Glucosidase 2 subunit β precursor Membrane 1.23 0.04 e−08 0.00 1.07 0.02 e−05 0.001 3 8 6
    PSB8_HUMAN (P28062) Proteasome subunit β type 8 precursor Intracellular 1.03 0.06 0.670 0.92 0.83 0.03 e−06 e−05 1 8
    PSME3_HUMAN (P61289) Proteasome activator complex subunit 3 Intracellular 0.93 0.07 0.341 0.79 0.73 0.05 e−07 e−05 4 10 19
    GNAS_HUMAN (P63092) Guanine nucleotide-binding protein Gs subunit α isoforms, short Intracellular 0.72 0.08 0.004 0.05 1.14 0.39 0.688 0.900 2 10 14
    ATP5J_HUMAN (P18859) ATP synthase coupling factor 6, mitochondrial precursor Cytoplasm 1.23 0.12 0.032 0.23 0.74 0.15 0.126 0.464 2 12 22
    GRAP2_HUMAN (O75791) GRB2-related adapter protein 2 Cytoplasm 1.00 0.01 0.816 0.96 1.27 0.08 e−05 0.002 6 18 12
    APT_HUMANa (P07741) Adenine phosphoribosyl- transferase Cytoplasm 0.99 0.02 0.723 0.93 0.83 0.08 0.045 0.243 4 24 25
    HS105_HUMANa (Q92598) Heat-shock protein, 105 kDa Cytoplasm 1.24 0.07 e−04 0.01 1.09 0.12 0.436 0.755 4 12 6
    TXLNA_HUMANa (P40222) α-Taxilin Cytoplasm, extracellular region 1.38 0.14 0.001 0.02 1.01 0.07 0.848 0.967 3 9 13
    S10A9_HUMANa (P06702) Protein S100-A9 (S100 calcium-binding protein A9) Extracellular space 1.27 0.09 e−04 0.01 1.82 1.09 0.289 0.653 4 7 31

a Detected in the published T cell nucleus data sets of Han and co-workers (34, 35).

b Included but did not pass inclusion criteria.

c In one biological replicate only.

d Shared peptides with LEF1 (Q9UJU2) and TF7L2 (Q9NQB0) support this change.

e Mascot provided two additional sequences.