\documentclass[10pt,a4paper]{article}

% Packages
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\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
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%\usepackage[utf8x]{inputenc}    % For unicode character support
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\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{Verne89 (Verne89)}
\pdfinfo{
  /Title (template-for-biochemical-pathways.pdf)
  /Creator (Cheatography)
  /Author (Verne89 (Verne89))
  /Subject (Template for biochemical pathways Cheat Sheet)
}

% Lengths and widths
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\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
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\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
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\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
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\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Template for biochemical pathways Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Verne89 (Verne89)} via \textcolor{DarkBackground}{\uline{cheatography.com/32242/cs/9904/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Verne89 (Verne89) \\
  \uline{cheatography.com/verne89} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Published 19th November, 2016.\\
   Updated 19th November, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.


\begin{tabularx}{17.67cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{{\bf{How the template works}}}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{The template for studying biochemical pathways works in real, physical paper: you get to use a pencil, rubber, and a ruler, and start sketching the pathway/s you need to study in the format provided here. When you analyze what you have and rebuild it in a different format, you're learning it.} \tn 
% Row Count 6 (+ 6)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{17.67cm}}{\bf\textcolor{white}{Interpretation of the format provided}}  \tn
% Row 0
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{17.67cm}}{This is just a template for studying metabolic pathways, which uses the Krebs cycle to illustrate itself as an example. It uses alternate rows, as well as columns of input and columns of output. In the colored background rows we have the product of the previous reaction ( which is the reactive of the following reaction), next to the elements that are joined in the following reaction (INPUT), or those that are derived from the previous reaction (OUTPUT). The white rows contain the enzyme catalysing each reaction (with a number). These rows leave some space to the right to extra information, such as optimal conditions (pH, temperature, pressure ...), cofactors, the alpha of a reversible reaction (α), or whatever we want to study. As most biochemical reactions are reversible, those that are irreversible (in this case: 1, 3 and 4) are being put between brackets, because they are decisive.} \tn 
% Row Count 18 (+ 18)
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{17.67cm}{x{4.8923 cm} x{8.6037 cm} x{3.374 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{3}{x{17.67cm}}{\bf\textcolor{white}{Krebs Cycle - Template Example}}  \tn
% Row 0
\SetRowColor{LightBackground}
\seqsplit{Product/Reactive} & INPUT & OUTPUT \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
Step & Enzyme & Extra Info \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{Oxalacetate} & Acetyl-CoA + H`2`O & {\emph{BLANK}} \tn 
% Row Count 5 (+ 1)
% Row 3
\SetRowColor{white}
( {\bf{1}} ) & Citrate synthase &  \tn 
% Row Count 6 (+ 1)
% Row 4
\SetRowColor{LightBackground}
Citrate &  & HS-CoA + H\textasciicircum{}+\textasciicircum{} \tn 
% Row Count 8 (+ 2)
% Row 5
\SetRowColor{white}
{\bf{2}} & Aconitase &  \tn 
% Row Count 9 (+ 1)
% Row 6
\SetRowColor{LightBackground}
Isocitrate & NAD\textasciicircum{}+\textasciicircum{} &  \tn 
% Row Count 10 (+ 1)
% Row 7
\SetRowColor{white}
( {\bf{3}} ) & Isocitrate dehydrogenase &  \tn 
% Row Count 12 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{alpha-ketoglutarate} & HS-CoA + NAD\textasciicircum{}+\textasciicircum{} & NADH + CO`2` \tn 
% Row Count 14 (+ 2)
% Row 9
\SetRowColor{white}
( {\bf{4}} ) & Alpha-ketoglutarate dehydrogenase &  \tn 
% Row Count 16 (+ 2)
% Row 10
\SetRowColor{LightBackground}
\seqsplit{Succinyl-Coenzyme} A & ADP + Pi & CO`2` + NADH \tn 
% Row Count 18 (+ 2)
% Row 11
\SetRowColor{white}
{\bf{5}} & Succinyl coenzyme A synthetase &  \tn 
% Row Count 20 (+ 2)
% Row 12
\SetRowColor{LightBackground}
Succinate & Ubiquinone (Q) & ATP + HS-CoA \tn 
% Row Count 22 (+ 2)
% Row 13
\SetRowColor{white}
{\bf{6}} & Succinate dehydrogenase &  \tn 
% Row Count 24 (+ 2)
% Row 14
\SetRowColor{LightBackground}
Fumarate & H`2`O & QH`2` \tn 
% Row Count 25 (+ 1)
% Row 15
\SetRowColor{white}
{\bf{7}} & Fumarase &  \tn 
% Row Count 26 (+ 1)
% Row 16
\SetRowColor{LightBackground}
Malate & NAD\textasciicircum{}+\textasciicircum{} &  \tn 
% Row Count 27 (+ 1)
% Row 17
\SetRowColor{white}
{\bf{8}} & Malate dehydrogenase &  \tn 
% Row Count 28 (+ 1)
% Row 18
\SetRowColor{LightBackground}
\seqsplit{Oxalacetate} & {\emph{BLANK}} & NADH + H\textasciicircum{}+\textasciicircum{} \tn 
% Row Count 30 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}---}
\end{tabularx}
\par\addvspace{1.3em}



\end{document}