conserved sequence


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conserved sequence

[kən′sərvd ′sē·kwəns]
(evolution)
A sequence of nucleotides in genetic material or of amino acids in a polypeptide chain that has changed only slightly or not at all during an evolutionary period of time.
References in periodicals archive ?
Our genomic imprinting study focused on highly conserved sequence characteristics in the set of particular species being studied.
1997) suggest that though CSB1 is the least conserved sequence block, it is functionally the most important element.
Three species were only detected termination-associated sequence domain (TAS) and conserved sequence blocks domain (CSB-1, CSB-2 and CSB-3).
PCR amplifications for detection of the presence of CP sequences in the transgenic plants were achieved with the primer: the forward primer 5'- ctcgagatgacagtaaaaaag-3' (underlined XhoI site added) and reverse primer 5'-tctagactatatatactctgggaac -3' (underlined XbaI site added), which corresponded to aiiA core conserved sequence.
HEV infection was confirmed by using nested PCR amplification of a conserved sequence within the HEV open reading frame (ORF) 2-3 overlapping region (8).
The slow-evolving SSU rRNA is often the best marker for molecular phylogenetic analysis as it is ubiquitous with multiple copies highly conserved sequence and has exactly the same function in all cells.
However, the patient's serum but not CSF tested positive for flavivirus RNA when a universal flavivirus reverse transcription (RT)-PCR assay that targets the conserved sequence of the NS5 region was used (3).
The terminus of the 3' NCR has a conserved sequence and secondary structure.
The duplication of a conserved sequence at the start of ORF1 and ORF2 is characteristic of caliciviruses and is seen in all 4 genera, NoV, sapovirus, lagovirus, and vesivirus (5,26-28).
For this procedure, universal morbillivirus primers based on the conserved sequence of a 457-bp fragment of the phosphoprotein gene (6,8) were used.
The 3' conserved sequence of class I integrons is characterized by antibiotic resistance gene qacE?