\chapter{Glossary of Terms}
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    \begin{longtable}{ p{.25\textwidth} p{.70\textwidth} }%{ l r } 
        Abbreviation & Definition  \\
        \hline
        AdoHcy & \textit{S}-Adenosyl-\textsc{l}-homocysteine (also SAH)\\
        ADP & Adenosine diphosphate \\
        ADPr & ADP-ribosylation \\ 
        ATP & Adenosine triphosphate \\
        BLAST & Basic Local Alignment Search Tool \\ 
        CID & Collision-induced dissociation \\
        CIP & Calf intestinal alkaline phosphatase \\ 
        Da & Dalton (1 amu)\\
        ECD & Electron-capture dissociation \\
        EIC & Extracted ion chromatogram \\ 
        ETD & Electron-transfer dissociation \\
        ESI & Electropray ionization \\ 
        FT & Fourier transform  \\
        FWHM & Full width at half maximum \\ 
        Gal & galactose \\
        GalNAc & \textit{N}-acetylgalactosamine \\
        GlcNAc & \textit{N}-acetylglucosamine \\
        Glc & Glucose \\
        Gtf(s) & Glycosyltransferase(s) \\
        HCD & Higher-energy collisional dissociation \\ 
        HCF-1 & Host cell factor-1  \\
        HPLC & High Performance Liquid chromatography  \\
        HRV3C &  Human Rhinovirus 3C [protease] \\
        ICR & Ion cyclotron resonance \\
        IPTG & Isopropyl $\beta$-\textsc{d}-1-thiogalactopyranoside \\
        LB & Luria-Bertani broth \\
        LC & Liquid chromatography \\
        MS & Mass spectrometry \\
        MS\textsuperscript{n} & Tandem mass spectrometry (general) \\
        MS/MS & Tandem mass spectrometry (also MS\textsuperscript{2}) \\
        MWCO & Molecular weight cut-off \\
        NT-sugar & Nucleotide-sugar \\ 
        OGT & \textit{O}-linked-\textit{N}-acetylglucosaminetransferase \\
        PAGE & Polyacrylamide gel electrophoresis \\
        PARP & poly(ADP-ribosyl) polymerase \\ 
        pE & pyroglutamic acid (also pyroGlu) \\
        PIMT & Protein isoaspartyl methyltransferase \\
        PGP & Pyroglutamate aminopeptidase \\ 
        PMSF & Phenylmethylsulfonyl fluoride \\ 
        ppm & Parts-per-million \\
        PTM & Post-translational modification \\
        RMS & Root mean squared \\
        S/N & Signal-to-Noise ratio \\
        SAM & \textit{S}-adenosylmethionine \\
        SEC & Size-exclusion chromatography \\ 
        SDS & Sodium dodecyl sulfate \\
        SID & Stable isotope dilution \\ 
        STO & Single-turnover \\ 
        TBS & Tris-buffered saline \\
        THP & Tris(3-hydroxypropyl)phosphine \\
        TIC & Total ion chromatogram \\
        ToF & Time-of-Flight \\
        THP & Tris(3-hydroxypropyl)phosphine \\ 
        TPR(s) & Tetratricopeptide repeat(s) \\ 
        Tris & 2-amino-2-hydroxymethyl-propane-1,3-diol \\ 
        UDP & Uridine diphosphate \\
        UDP-5\textit{S}GlcNAc & Uridine diphosphate 5-thio-\textit{N}-acetylglucosamine \\
        UDP-Gal & Uridine 5'-diphosphogalactose \\
        UDP-GalNAc & Uridine 5'-diphosphate \textit{N}-acetylgalactosamine \\
        UDP-GlcNAc & Uridine 5'-diphosphate \textit{N}-acetylglucosamine \\
        UDP-Glc & Uridine 5'-diphosphoglucose \\
        uHPLC & Ultra High Performance Liquid chromatography \\
        `U' & Enzyme activity unit \\
        `wt' & Wild-type \\ 
        \hline
        \caption[List of abbreviated terms]{List of abbreviated terms}
        \label{tab:glossary}
    \end{longtable}
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  %  \begin{longtable}{ p{.4\textwidth} p{.4\textwidth} }%{ l r } 
  %      Amino acid & Abbreviation\\
  %      \hline
  %       Alanine & Ala (A)\\
  %       Arginine & Arg (R) \\ 
  %       Asparagine & Asn (N) \\
  %       Aspartic acid & Asp (D) \\
  %       Cysteine & Cys (C) \\ 
  %       Glutamine & Gln (Q)  \\
  %       Glutamic acid & Glu (E) \\
  %       Glycine & Gly (G) \\
  %       Histidine & His (H) \\
  %       Isoleucine & Ile (I) \\
  %       Leucine & Leu (L) \\
  %       Lysine & Lys (K) \\
  %       Methionine & Met (M) \\
  %       Phenylalanine & Phe (F) \\
  %       Proline & Pro (P) \\
  %       Serine & Ser (S) \\
  %       Threonine & Thr (T) \\
  %       Tryptophan & Trp (W) \\
  %       Tyrosine & Tyr (Y) \\
  %       Valine & Val (V) \\
  %     \hline
  %     \caption[List of amino acids]{List of amino acids.}
  %     \label{tab:listofAAs}
  %   \end{longtable}
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