Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
The ability to equalize the DNA binding stability of comprehensive sets of oligonucleotides is imperative for the application of sequencing by hybridization technology. By substitution of ribonucleotides into an oligonucleotide composed of deoxyribonucleotides, and vice versa, the duplex stability of the oligonucleotide is changed linearly with the number of serial alternations of sugar configurations within the molecule. Since this effort occurs independently of the actual base sequence, any set of oligonucleotides could be adjusted to a defined level of binding stability.
Download full-text PDF |
Source |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC145665 | PMC |
http://dx.doi.org/10.1093/nar/24.3.430 | DOI Listing |
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