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. 2019 Jul 12;24(14):2542. doi: 10.3390/molecules24142542

Table 2.

The NMR related information of the related proton signals in the small molecules in the serum samples.

Metabolites Moieties 1H Shift(δ) Peak Num Structure
Lipid CH3 0.891(t) 1
CH3CH2CH2 1.210(m)
(CH2)n 1.221(m)
CH3CH2(CH2)n 1.232(m)
CH2 CH2CO 1.590(m)
CH2C=C 2.018(m)
CH2COO 2.238(m)
C=CCH2C=C 2.742(m)
C=CCH2C=C 2.749(m)
C=CCH2C=C 2.761(m)
Isoleucine δCH3 0.943(t) 2 graphic file with name molecules-24-02542-i001.jpg
βCH3 1.000(d)
Γ′CH3 1.008(d)
γCH2 1.284(m)
γCH2 1.459(m)
βCH 1.961(m)
Leucine δCH3 0.955(d) 3 graphic file with name molecules-24-02542-i002.jpg
δ′CH3 0.965(d)
δCH3 0.975(d)
γCH 1.691(m)
βCH2 1.707(m)
αCH 3.685(dd)
αCH 3.753(d)
Valine γ′CH3 0.988(d) 4 graphic file with name molecules-24-02542-i003.jpg
CH3 1.020(d)
CH3 1.040(d)
γCH3 1.052(d)
βCH 2.285(m)
αCH 3.570(d)
αCH 3.617(d)
Isobutyrate CH3 1.361(d) 5
3-hydroxybutyrate γCH3 1.200(d) 6 graphic file with name molecules-24-02542-i004.jpg
αCH2 2.293(m)
αCH2 2.380(m)
βCH 4.131(m)
Lactate βCH3 1.341(d) 7 graphic file with name molecules-24-02542-i005.jpg
αCH 4.108(q)
Lysine half δCH2 1.434(m) 8 graphic file with name molecules-24-02542-i006.jpg
half δCH2 1.689(m)
γCH2 1.719(m)
half βCH2 1.886(m)
half βCH2 1.897(m)
εCH2 3.031(t)
αCH 3.767(t)
Alanine βCH3 1.480(d) 9 graphic file with name molecules-24-02542-i007.jpg
γCH2 1.492(m)
αCH 3.783(q)
NAG CH3 2.041(s) 10
Arginine γCH2 1.681(m) 11 graphic file with name molecules-24-02542-i008.jpg
γCH2 1.730(m)
βCH2 1.926(m)
δCH2 3.257(t)
αCH 3.774(m)
Acetate CH3 1.914(s) 12 graphic file with name molecules-24-02542-i009.jpg
Acetoacetate CH3 2.273(s) 13 graphic file with name molecules-24-02542-i010.jpg
CH2 3.441(s)
OAG CH3 2.140(s) 14
Glutamine γCH2 2.411(m) 15 graphic file with name molecules-24-02542-i011.jpg
γCH2 2.465(m)
αCH2 3.677(t)
Threonine γCH3 1.329(d) 16 graphic file with name molecules-24-02542-i012.jpg
αCH 3.487(d)
αCH 3.593(d)
Pyruvate CH2 2.318(s) 17 graphic file with name molecules-24-02542-i013.jpg
CH3 2.372(s)
Glutamate βCH2 2.077(m) 18 graphic file with name molecules-24-02542-i014.jpg
γCH2 2.351(m)
αCH 3.786(t)
Succinate CH2 2.395(s) 19 graphic file with name molecules-24-02542-i015.jpg
2-ketoglutarate αCH2 2.437(t) 20 graphic file with name molecules-24-02542-i016.jpg
Methionine αCH2 3.858(m) 21
βCH2 2.166(t)
γCH2 2.657(t)
δCH2 2.142(s)
Citrate half CH2 2.523(d) 22 graphic file with name molecules-24-02542-i017.jpg
half CH2 2.657(d)
Tyrosine half βCH2 3.058(dd) 23 graphic file with name molecules-24-02542-i018.jpg
half βCH2 3.158(dd)
β′CH2 3.199(dd)
αCH 3.951(dd)
Asparagine half βCH2 2.836(dd) 25 graphic file with name molecules-24-02542-i019.jpg
half βCH2 2.941(dd)
βCH2 2.948(dd)
αCH 3.997(dd)
Dimethylglycine N-CH3 2.930(s) 26 graphic file with name molecules-24-02542-i020.jpg
CH2 3.723(s)
2-ketoisovalerate γCH3 1.111(d) 27 graphic file with name molecules-24-02542-i021.jpg
βCH 3.020(m)
Creatine CH3 3.040(s) 28 graphic file with name molecules-24-02542-i022.jpg
CH2 3.938(s)
Creatinine CH3 3.051(s) 29 graphic file with name molecules-24-02542-i023.jpg
CH2 4.066(s0
Phenylalanine βCH2 3.119(dd) 30 graphic file with name molecules-24-02542-i024.jpg
B′CH2 3.260(dd)
αCH 3.962(dd)
αCH 3.991(dd)
Choline N(CH3)3 3.208(s) 31 graphic file with name molecules-24-02542-i025.jpg
NCH2 3.657(m)
OCH 4.072(m)
Phosphocholine N(CH3)3 3.218(s) 32 graphic file with name molecules-24-02542-i026.jpg
N CH2 3.585(m)
OCH2 4.142(m)
Glycerophosphochline N(CH3)3 3.233(s) 33
α-glucose H4 3.429(t) 35 graphic file with name molecules-24-02542-i027.jpg
H2 3.542(dd)
H3 3.708(t)
half CH2-C6 3.732(dd)
H5 3.822(dd)
H6 3.840(dd)
β-glucose H2 3.242(dd) 35
H4 3.398(t)
H5 3.468(dd) graphic file with name molecules-24-02542-i028.jpg
H3 3.503(t)
H6 3.743(dd)
H6 3.898(dd)
Betaine N(CH3)3 3.271(s) 36
OCH2 3.915(s)
Taurine CH2SO3 3.271(t) 37 graphic file with name molecules-24-02542-i029.jpg
CH2SO3 3.414(t)
Scyllo-inositol CHOH 3.355(s) 38 graphic file with name molecules-24-02542-i030.jpg
Glycine CH2 3.558(s) 39 graphic file with name molecules-24-02542-i031.jpg
Glycerol half CH2 3.552(dd) 40 graphic file with name molecules-24-02542-i032.jpg
half CH2 3.649(dd)
CH 3.795(m)
Triglycerides CH2O 4.072(m) 41 graphic file with name molecules-24-02542-i033.jpg

Note: The peak assignments were identified based on former publications [12,13,15,18,24,25,26].