Abstract: Disclosed herein are methods, compositions, and systems for determining specific microbial taxa, within a complex consortia of mixed taxa, which are interacting with each other in an environment of interest. In some embodiments, after diluting a sample comprising multiple different taxa of microorganisms, dilutions of the sample are cultivated for determining taxonomic information and interactions of multiple taxa of microorganisms in the sample.

Abstract: The present invention provides for a method for screening for gene function for a bacteriophage, the method comprising: (1) (a) providing one or more host organism, such as a species or strain, libraries, (b) providing randomly barcoded transposon sequencing (such as RB-TnSeq), and (c) screening for loss-of-function (LOF) mutant phenotypes; or (2) (a) providing one or more DNA barcoded overexpression strain libraries (such as Dub-seq) using DNA of the host organism and/or phage, and (b) screening for gain-of-function (GOF).

Abstract: The present invention provides for a nucleic acid encoding a bacteriophage genome comprising a unique n-mer barcode inserted in a non-essential location or gene location within the bacteriophage genome, or a bacteriophage comprising the nucleic acid thereof

Abstract: Disclosed herein are methods, compositions, and systems for determining specific microbial taxa, within a complex consortia of mixed taxa, which are interacting with each other in an environment of interest. In some embodiments, after diluting a sample comprising multiple different taxa of microorganisms, dilutions of the sample are cultivated for determining taxonomic information and interactions of multiple taxa of microorganisms in the sample.

Abstract: Disclosed herein are methods, compositions, and systems for determining specific microbial taxa, within a complex consortia of mixed taxa, which are interacting with each other in an environment of interest. In some embodiments, after diluting a sample comprising multiple different taxa of microorganisms, dilutions of the sample are cultivated for determining taxonomic information and interactions of multiple taxa of microorganisms in the sample.

Abstract: Disclosed herein are barcoded expression libraries comprising a plurality of expression vectors, wherein each expression vector comprises a nucleic acid fragment flanked by a first barcode and a second barcode. Further disclosed herein are methods of making the barcoded expression libraries and methods of conducting functional analysis using the barcoded expression libraries.

Abstract: The present disclosure provides nucleic acids encoding an RNA recognition sequence positioned proximal to an insertion site for the insertion of a sequence of interest; and host cells genetically modified with the nucleic acids. The present disclosure also provides methods of modifying the activity of a target RNA, and kits and compositions for carrying out the methods.

Abstract: Provided herein are nucleic acid constructs that contain a synthetic control element that includes a cis-regulator of translation, and an adapter translation-coupled regulator of transcription. Further provided herein are nucleic acid constructs that contain nucleic acid sequences under the control of the synthetic control elements. Also provided are compositions and methods related to the nucleic acid constructs.

Abstract: Provided herein are nucleic acid constructs that contain a synthetic control element that includes a cis-regulator of translation, and an adapter translation-coupled regulator of transcription. Further provided herein are nucleic acid constructs that contain nucleic acid sequences under the control of the synthetic control elements. Also provided are compositions and methods related to the nucleic acid constructs.

Abstract: The present disclosure provides nucleic acids encoding an RNA recognition sequence positioned proximal to an insertion site for the insertion of a sequence of interest; and host cells genetically modified with the nucleic acids. The present disclosure also provides methods of modifying the activity of a target RNA, and kits and compositions for carrying out the methods.

Abstract: A system and method for simulating the operation of biochemical networks includes a computer having a computer memory used to store a set of objects, each object representing a biochemical mechanism in the biochemical network to be simulated. Most objects have one or more associated signals, representing quantities or concentrations of associated proteins, positions of associated molecules, or other information concerning the state of a biochemical network. Each object has an associated set of methods. These methods include methods for determining reaction probabilities for biochemical reactions associated with the objects, and reaction simulation methods for simulating performance of those biochemical reactions.