摘要:
Systems, methods and computer readable media for characterizing a chemical array. At least one metric indicative of accuracy of location of features on the chemical array by a feature extraction process used to extract signals from features of the chemical array may be generated, as well as additional metrics adapted to identify errors caused by a particular process used in generating the signals on the array. A quality control report may be generated to contain at least one metric indicative of accuracy of location and said at least one additional metric. Customized quality control reports may be generated by providing for user selection of at least one metric adapted to identify errors caused by a particular process used in generating signals on a chemical array, from plurality of metrics, and including such selections in the quality control report generated. Systems, methods and computer readable media are provided for characterizing a chemical array by generating metrics adapted to identify errors caused by a particular process used in generating the signals on the array, generating a quality control report containing at least one of the metrics, and outputting the quality control report.
摘要:
Systems, methods and computer readable media for extracting data from features on a chemical array, using a feature extraction module including feature extraction algorithms configured to calculate characteristics of array features. A reference table is provided that associates probe names of probes contained on the array with at least one additional identifier. The reference table is accessible by the feature extraction module to convert any one of the at least one additional identifiers to the probe names, and the probe names to at least one of the at least one additional identifiers.
摘要:
A method and system for quantify random errors, sequence-dependent trends, and spatial-intensity trends in one or more channels of microarray data sets. The method and system of one embodiment of the present invention is directed to a method for quantifying random errors, sequence-dependent trends, and spatial-intensity trends present in microarray data sets. An additive error equation is employed to quantify background noise present in feature intensities due to random errors, sequence-dependent trends, and spatial-intensity trends.
摘要:
A method and system for determining a biopolymer array substrate thickness dependent optimal focus distance for scanning a molecular array by a molecular array scanner are disclosed. Also disclosed are methods of determining the thickness of a biopolymer array substrate using a position sensitive device (PSD) component of a biopolymer array scanner. Further methods include determining the thickness of said biopolymeric array and automatically selecting an optimal focus distance using the determined thickness and a calibration function on thickness versus optimal focus distance. The subject invention finds use in a variety of different applications, including both genomic and proteomic applications.
摘要:
Methods, systems and computer readable media for controlling an instrument in communication with a host computer are provided. Operations of an instrument that must be completed on schedule are controlled via an embedded controller embedded in the instrument. A complete status packet is sent to a host computer from the embedded controller Periodically, the embedded controller repeats the sending of a complete status packet to the host computer, wherein status values in the complete status packet are updated with each iteration of sending a complete status packet.
摘要:
Methods, systems and computer readable media for removing trends in signal intensity values from features on a chemical array. Inputted signal values from features on the array are surface fitted to calculate a surface approximation. The surface approximation is normalized and used to de-trend the signal intensity values from the features.
摘要:
Embodiments of the present invention include methods and systems for analysis of comparative genomic hybridization (“CGH”) data, including CGH data obtained from microarray experiments.
摘要:
Methods, systems and computer readable media for calling out genetic aberrations. Log ratio noise associated with log ratio signals read from respective probes on at least one array for signals representative of the same chromosomal locations in a test sample of nucleic acids and a reference sample of nucleic acids applied to the at least one array are estimated. Outliers for log ratio values from the reference sample to outliers for log ratio values from the test sample are compared. A copy number of one or more of the chromosomal locations in the test sample is outputted relative to the reference sample for viewing by a user.
摘要:
Automated methods and systems for determining an in-focus-distance for a position on the surface of a molecular array substrate using a molecular array scanner are provided. A signal from a first position of an array substrate is detected and noise is filtered out of the detected signal using a symmetrical filter to produce an in-focus-distance. In one embodiment, the in-focus-distance is utilized as an estimated in-focus-distance at a second position of the array substrate. The method finds use in maintaining the focus of a light source while scanning the array by the scanner. Also provided are methods of assaying a sample using the methods and systems of the invention, and kits for performing the invention. The subject invention finds use in a variety of different applications, including both genomics and proteomics applications.
摘要:
A method and system for determining a biopolymer array substrate thickness dependent optimal focus distance for scanning a molecular array by a molecular array scanner are provided. A reference substrate is automatically scanned at successively greater distances of the stage from a light gathering medium, such as an optical fiber, or z-positions, to produce data providing a functional relationship between z-position and measured signal intensities. The data is then processed by an array substrate thickness dependent focus-finding routine that selects an optimal focus-distance for data scans which is optimized for the thickness of the reference substrate. Also provided are methods of determining the thickness of a biopolymer array substrate using a position sensitive device (PSD) component of a biopolymer array scanner. Further methods include determining the thickness of said biopolymeric array and automatically selecting an optimal focus distance using the determined thickness and a calibration function on thickness versus optimal focus distance. The subject invention finds use in a variety of different applications, including both genomic and proteomic applications.