Effects of ω-3 Polyunsaturated Fatty Acids on Plasma Proteome in Rett Syndrome
Table 1
Identification results of proteins differentially expressed in basal and in RTT before and after ω-3 PUFAs supplementation.
Experimental
Data bank exploration
Spot
Protein name
Untreated RTT
RTT after ω-3 supplementation
UniProt ID
Entry name
Mascot score
Sequence coverage (%)
Peptides matches
Theoretical pI/Mr (kDa)
ANOVA (P < 0.05)
Fold change*
Protein expression
ANOVA (P < 0.05)
Fold change**
Protein expression
1
Complement Factor B
0.042
+1.58
Upregulated
0.030
−1.40
Downregulated
P00751
CFAB
102
21
11/24
6.67/86.4
2
Fibrinogen alpha chain
0.009
+2.07
Upregulated
0.008
−2.04
Downregulated
P02671
FIBA
120
30
25/86
5.70/95.6
3
Albumin
0.016
+1.67
Upregulated
0.012
−1.66
Downregulated
P02768
ALBU
242
38
22/33
5.92/71.3
4
Alpha-1-antitrypsin
0.001
+1.97
Upregulated
0.019
−1.33
Downregulated
P01009
A1AT
235
60
26/69
5.37/46.8
5
Alpha-1-antitrypsin
0.003
+1.73
Upregulated
0.005
−1.47
Downregulated
P01009
A1AT
106
25
10/18
5.37/46.8
6
Vitamin D-binding protein
0.002
−1.52
Downregulated
0.001
+1.85
Upregulated
P02774
VTDB
123
35
14/40
5.40/54.5
7
Albumin (C terminal fragment)
0.027
+1.46
Upregulated
—
—
—
P02768
ALBU
79
18
9/25
5.92/71.3
8
Apolipoprotein A-IV
0.038
−1.45
Downregulated
0.029
+1.46
Upregulated
P06727
APOA4
107
36
13/48
5.28/45.3
9
Haptoglobin
0.010
+1.17
Upregulated
0.027
−1.15
Downregulated
P00738
HPT
58
16
9/23
6.13/45.8
10
Clusterin
0.013
−1.34
Downregulated
0.009
+1.50
Upregulated
P10909
CLUS
131
24
8/8
5.89/53.0
11
Transthyretin
0.012
+1.91
Upregulated
0.015
−1.79
Downregulated
P02766
TTHY
113
59
6/10
5.52/15.9
12
Apolipoprotein A-I
0.043
−1.50
Downregulated
0.024
+1.52
Upregulated
P02647
APOA1
253
70
27/69
5.56/30.7
13
Retinol-binding protein 4
0.001
−2.56
Downregulated
0.001
+2.59
Upregulated
P02753
RET4
112
46
8/18
5.76/23.3
14
Albumin (N terminal fragment)
0.021
+1.73
Upregulated
0.014
−1.78
Downregulated
P02768
ALBU
143
24
14/23
5.92/71.3
15
Haptoglobin
0.001
+1.81
Upregulated
0.003
−1.55
Downregulated
P00738
HPT
72
21
10/31
6.13/45.8
16
Transthyretin
0.044
−1.32
Downregulated
—
—
—
P02766
TTHY
120
68
7/15
5.52/15.9
Experimental section includes Spot ID, protein name, and the significant threshold level (P < 0.05). Variation in spot intensities represented by fold is expressed as ratio of RTT to control and as a ratio of RTT after ω-3 supplementation to RTT. Positive fold changes denote proteins upregulated, while negative fold changes denote decrease of protein expression levels. — denotes the absence of significant changes. Data bank exploration of proteins includes SwissProt data bank accession numbers and entry name, the Mascot score, the sequence coverage, the number of peptides matching the protein sequence, and theoretical pI/Mr × 10−3. *Comparisons versus healthy controls; **Comparisons versus untreated RTT.