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The ORF Finder (Open Reading Frame Finder) [16] is a graphical analysis tool which finds all open reading frames of a selectable minimum size in a user's sequence or in a sequence already in the database. This tool identifies all open reading frames using the standard or alternative genetic codes.
The gene finder is based on a hidden Markov model (HMM) that is automatically estimated for a new genome. Prokaryotes [8] [9] EuGene: Integrative gene finding: Prokaryotes, Eukaryotes [10] [11] FGENESH: HMM-based gene structure prediction: multiple genes, both chains: Eukaryotes [12] FrameD: Find genes and frameshift in G+C rich prokaryote ...
An upstream open reading frame (uORF) is an open reading frame (ORF) within the 5' untranslated region (5'UTR) of an mRNA. uORFs can regulate eukaryotic gene expression. [1] [2] Translation of the uORF typically inhibits downstream expression of the primary ORF. However, in some genes such as yeast GCN4, translation of specific uORFs may ...
Ab Initio gene prediction is an intrinsic method based on gene content and signal detection. Because of the inherent expense and difficulty in obtaining extrinsic evidence for many genes, it is also necessary to resort to ab initio gene finding, in which the genomic DNA sequence alone is systematically searched for certain tell-tale signs of protein-coding genes.
The largest known nidovirus, planarian secretory cell nidovirus (PSCNV), with a 41kb genome, has a non-canonical genome structure in which ORF1a, ORF1b, and downstream ORFs containing structural proteins are fused and expressed as a single large ORF encoding a polyprotein of over 13,000 amino acids.
Second Version of GLIMMER i.e., GLIMMER 2.0 was released in 1999 and it was published in the paper Improved microbial identification with GLIMMER. [4] This paper [4] provides significant technical improvements such as using interpolated context model instead of interpolated Markov model and resolving overlapping genes which improves the accuracy of GLIMMER.
Computational approaches, primarily by sequence analysis, have shown the existence of AREs in approximately 5 to 8% of human 3′-UTRs and the presence of one or more miRNA targets in as many as 60% or more of human 3′-UTRs. Software can rapidly compare millions of sequences at once to find similarities between various 3′ UTRs within the ...
OrthoFinder workflow and outputs. OrthoFinder is a command-line software tool for comparative genomics. [1] [2] OrthoFinder determines the correspondence between genes in different organisms (also known as orthology analysis).