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795 changes: 357 additions & 438 deletions
795
...is/multiSpecies/microbiomeModelingToolbox/additionalAnalysis/calculateReactionAbundance.m
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...ultiSpecies/microbiomeModelingToolbox/additionalAnalysis/fastCalculateReactionAbundance.m
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| function ReactionAbundance = fastCalculateReactionAbundance(abundancePath, modelPath, rxnsList, numWorkers) | ||
| % Part of the Microbiome Modeling Toolbox. This function calculates and | ||
| % plots the total abundance of reactions of interest in a given microbiome | ||
| % sample based on the strain-level composition. | ||
| % Reaction presence or absence in each strain is derived from the reaction content | ||
| % of the respective AGORA model. | ||
| % | ||
| % USAGE | ||
| % | ||
| % ReactionAbundance = fastCalculateReactionAbundance(abundancePath, modelPath, rxnsList, numWorkers) | ||
| % | ||
| % INPUTS: | ||
| % abundancePath: Path to the .csv file with the abundance data. | ||
| % Example: 'cobratoolbox/papers/018_microbiomeModelingToolbox/examples/normCoverage.csv' | ||
| % modelPath: Folder containing the strain-specific AGORA models | ||
| % OPTIONAL INPUTS: | ||
| % rxnsList: List of reactions for which the abundance | ||
| % should be calculated (if left empty: all | ||
| % reactions in all models) | ||
| % numWorkers: Number of workers used for parallel pool. If | ||
| % left empty, the parallel pool will not be | ||
| % started. Parallellization is recommended if | ||
| % all reactions are computed. | ||
| % | ||
| % OUTPUT: | ||
| % ReactionAbundance Table with total abundance for each microbiome | ||
| % and reaction | ||
| % | ||
| % .. Author: - Almut Heinken, 04/2021 | ||
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| % read the csv file with the abundance data | ||
| abundance = readtable(abundancePath, 'ReadVariableNames', false); | ||
| abundance = table2cell(abundance); | ||
| if isnumeric(abundance{2, 1}) | ||
| abundance(:, 1) = []; | ||
| end | ||
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| % load the models | ||
| for i = 2:size(abundance, 1) | ||
| model = readCbModel([modelPath filesep abundance{i, 1} '.mat']); | ||
| modelsList{i, 1} = model; | ||
| end | ||
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| if ~exist('rxnsList', 'var') || isempty(rxnsList) % define reaction list if not entered | ||
| fprintf('No reaction list entered. Abundances will be calculated for all reactions in all models. \n') | ||
| % get model list from abundance input file | ||
| for i = 2:size(abundance, 1) | ||
| model = modelsList{i, 1}; | ||
| rxnsList = vertcat(model.rxns, rxnsList); | ||
| end | ||
| rxnsList = unique(rxnsList); | ||
| end | ||
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| % load the models found in the individuals and extract which reactions are | ||
| % in which model | ||
| for i = 2:size(abundance, 1) | ||
| model = modelsList{i, 1}; | ||
| ReactionPresence{i, 1} = abundance{i, 1}; | ||
| for j = 1:length(rxnsList) | ||
| ReactionPresence{1, j + 1} = rxnsList{j}; | ||
| if ~isempty(find(ismember(model.rxns, rxnsList{j}))) | ||
| ReactionPresence{i, j + 1} = '1'; | ||
| else | ||
| ReactionPresence{i, j + 1} = '0'; | ||
| end | ||
| end | ||
| end | ||
| ReactionPresence{1,1}='Strains'; | ||
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| % prepare table for the total abundance | ||
| ReactionAbundance = {}; | ||
| for i = 1:length(rxnsList) | ||
| ReactionAbundance{1, i + 1} = rxnsList{i}; | ||
| end | ||
| for i = 2:size(abundance, 2) | ||
| ReactionAbundance{i, 1} = abundance{1, i}; | ||
| end | ||
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| % use parallel pool if workers specified as input | ||
| if exist('numWorkers', 'var') && numWorkers > 0 | ||
| poolobj = gcp('nocreate'); | ||
| if isempty(poolobj) | ||
| parpool(numWorkers) | ||
| end | ||
| end | ||
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| clear abundance | ||
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| totalAbun={}; | ||
| parfor i = 2:size(ReactionAbundance, 1) | ||
| i | ||
| % reload the file to avoid running out of memory | ||
| abundance = readtable(abundancePath, 'ReadVariableNames', false); | ||
| abundance = table2cell(abundance); | ||
| if isnumeric(abundance{2, 1}) | ||
| abundance(:, 1) = []; | ||
| end | ||
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| % temporarily store reaction abundances | ||
| totalAbun{i} = zeros(length(rxnsList), 1); | ||
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| for j = 2:size(abundance, 1) | ||
| % find all reactions present in the strain | ||
| presentRxns = find(strcmp(ReactionPresence(j,2:end),'1')); | ||
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| for k = 1:length(presentRxns) | ||
| % summarize total abundance | ||
| totalAbun{i}(presentRxns(k),1) = totalAbun{i}(presentRxns(k),1) + str2double(abundance{j,i}); | ||
| end | ||
| end | ||
| end | ||
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| % collect the temporarily stored abundances to put together the table | ||
| for i = 2:size(ReactionAbundance, 1) | ||
| ReactionAbundance(i,2:end) = num2cell(totalAbun{i}); | ||
| end | ||
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| end |
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78 changes: 78 additions & 0 deletions
78
src/analysis/multiSpecies/microbiomeModelingToolbox/mgPipe/buildModelStorage.m
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| function [exch,modelStoragePath] = buildModelStorage(microbeNames,modPath) | ||
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| currentDir=pwd; | ||
| mkdir('modelStorage') | ||
| cd('modelStorage') | ||
| modelStoragePath = pwd; | ||
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| exch = {}; | ||
| for j = 1:size(microbeNames, 1) | ||
| model = readCbModel([modPath filesep microbeNames{j,1} '.mat']); | ||
| %exch = union(exch, model.mets(find(sum(model.S(:, strncmp('EX_', model.rxns, 3)), 2) ~= 0))); | ||
| exStruct = findSExRxnInd(model); | ||
| new_exch = findMetsFromRxns(model,model.rxns(exStruct.ExchRxnBool & ~exStruct.biomassBool)); | ||
| exch = union(exch,new_exch); | ||
| end | ||
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| % get already built reconstructions | ||
| dInfo = dir(modelStoragePath); | ||
| modelList={dInfo.name}; | ||
| modelList=modelList'; | ||
| modelList=strrep(modelList,'.mat',''); | ||
| microbesNames=setdiff(microbeNames,modelList); | ||
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| if length(microbesNames)>0 | ||
| %% create a new extracellular space [u] for microbes | ||
| for j = 1:size(microbeNames, 1) | ||
| model = readCbModel([modPath filesep microbeNames{j,1} '.mat']); | ||
| % temp fix | ||
| if isfield(model,'C') | ||
| model=rmfield(model,'C'); | ||
| model=rmfield(model,'d'); | ||
| end | ||
| % | ||
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| % removing possible constraints of the bacs | ||
| selExc = findExcRxns(model); | ||
| Reactions2 = model.rxns(find(selExc)); | ||
| allex = Reactions2(strmatch('EX', Reactions2)); | ||
| biomass = allex(find(strncmp(allex,'bio',3))); | ||
| finrex = setdiff(allex, biomass); | ||
| model = changeRxnBounds(model, finrex, -1000, 'l'); | ||
| model = changeRxnBounds(model, finrex, 1000, 'u'); | ||
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| % removing blocked reactions from the bacs | ||
| %BlockedRxns = identifyFastBlockedRxns(model,model.rxns, printLevel); | ||
| %model= removeRxns(model, BlockedRxns); | ||
| %BlockedReaction = findBlockedReaction(model,'L2') | ||
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| model = convertOldStyleModel(model); | ||
| exmod = model.rxns(strncmp('EX_', model.rxns, 3)); % find exchange reactions | ||
| eMets = model.mets(~cellfun(@isempty, strfind(model.mets, '[e]'))); % exchanged metabolites | ||
| dummyMicEU = createModel(); | ||
| %dummyMicEU = makeDummyModel(2 * size(eMets, 1), size(eMets, 1)); | ||
| dummyMicEUmets = [strcat(strcat(microbeNames{j, 1}, '_'), regexprep(eMets, '\[e\]', '\[u\]')); regexprep(eMets, '\[e\]', '\[u\]')]; | ||
| dummyMicEU = addMultipleMetabolites(dummyMicEU,dummyMicEUmets); | ||
| nMets = numel(eMets); | ||
| S = [speye(nMets);-speye(nMets)]; | ||
| lbs = repmat(-1000,nMets,1); | ||
| ubs = repmat(1000,nMets,1); | ||
| names = strcat(strcat(microbeNames{j, 1}, '_'), 'IEX_', regexprep(eMets, '\[e\]', '\[u\]'), 'tr'); | ||
| dummyMicEU = addMultipleReactions(dummyMicEU,names,dummyMicEUmets,S,'lb',lbs,'ub',ubs); | ||
| model = removeRxns(model, exmod); | ||
| model.rxns = strcat(strcat(microbeNames{j, 1}, '_'), model.rxns); | ||
| model.mets = strcat(strcat(microbeNames{j, 1}, '_'), regexprep(model.mets, '\[e\]', '\[u\]')); % replace [e] with [u] | ||
| [model] = mergeTwoModels(dummyMicEU, model, 2, false, false); | ||
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| %finish up by A: removing duplicate reactions | ||
| %We will lose information here, but we will just remove the duplicates. | ||
| [model,rxnToRemove,rxnToKeep]= checkDuplicateRxn(model,'S',1,0,1); | ||
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| writeCbModel(model,'format','mat','fileName',[microbeNames{j,1} '.mat']); % store model | ||
| end | ||
| end | ||
|
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| cd(currentDir) | ||
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| end |
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