LONG LIFETIME ALPHA-HEMOLYSIN NANOPORES
Described herein are variants of alpha-hemolysin having at least one amino acid substitution at H35G, E111N, M113A, and/or K147N in the mature, wild-type alpha-hemolysin amino acid sequence. In certain examples, the variant may have a substitution at E111S, M113S, T145S, K147S, or L1351 in the matur...
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| creator | Harris, Corissa Porter, Marshall Ambroso, Mark Craig, Timothy DiPietro, Matthew |
| description | Described herein are variants of alpha-hemolysin having at least one amino acid substitution at H35G, E111N, M113A, and/or K147N in the mature, wild-type alpha-hemolysin amino acid sequence. In certain examples, the variant may have a substitution at E111S, M113S, T145S, K147S, or L1351 in the mature alpha-hemolysin amino acid sequence. The α-hemolysin variants may also include a substitution at H144A and/or a series of glycine residues spanning residues 127 to 131 of the mature, wild-type alpha hemolysin. Also provided are nanopore assemblies including the alpha-hemolysin variants, the assembly having an increased nanopore lifetime. Further, provided are variants that, in addition to providing increased lifetime, provide a decreased time-to-thread. Hence, the variants provided herein both increase nanopore lifetime and improve efficiency and accuracy of DNA sequencing reactions using nanopores comprising the variants. |
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In certain examples, the variant may have a substitution at E111S, M113S, T145S, K147S, or L1351 in the mature alpha-hemolysin amino acid sequence. The α-hemolysin variants may also include a substitution at H144A and/or a series of glycine residues spanning residues 127 to 131 of the mature, wild-type alpha hemolysin. Also provided are nanopore assemblies including the alpha-hemolysin variants, the assembly having an increased nanopore lifetime. Further, provided are variants that, in addition to providing increased lifetime, provide a decreased time-to-thread. Hence, the variants provided herein both increase nanopore lifetime and improve efficiency and accuracy of DNA sequencing reactions using nanopores comprising the variants.</description><language>eng</language><subject>BEER ; BIOCHEMISTRY ; CHEMISTRY ; COMPOSITIONS OR TEST PAPERS THEREFOR ; COMPOSITIONS THEREOF ; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES ; CULTURE MEDIA ; ENZYMOLOGY ; HUMAN NECESSITIES ; HYGIENE ; MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS ; MEDICAL OR VETERINARY SCIENCE ; METALLURGY ; MICROBIOLOGY ; MICROORGANISMS OR ENZYMES ; MUTATION OR GENETIC ENGINEERING ; ORGANIC CHEMISTRY ; PEPTIDES ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES ; PROCESSES OF PREPARING SUCH COMPOSITIONS ; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS ; SPIRITS ; VINEGAR ; WINE</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210729&DB=EPODOC&CC=US&NR=2021230683A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210729&DB=EPODOC&CC=US&NR=2021230683A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Harris, Corissa</creatorcontrib><creatorcontrib>Porter, Marshall</creatorcontrib><creatorcontrib>Ambroso, Mark</creatorcontrib><creatorcontrib>Craig, Timothy</creatorcontrib><creatorcontrib>DiPietro, Matthew</creatorcontrib><title>LONG LIFETIME ALPHA-HEMOLYSIN NANOPORES</title><description>Described herein are variants of alpha-hemolysin having at least one amino acid substitution at H35G, E111N, M113A, and/or K147N in the mature, wild-type alpha-hemolysin amino acid sequence. 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| subjects | BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS OR TEST PAPERS THEREFOR COMPOSITIONS THEREOF CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES CULTURE MEDIA ENZYMOLOGY HUMAN NECESSITIES HYGIENE MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS MEDICAL OR VETERINARY SCIENCE METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY PEPTIDES PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PROCESSES OF PREPARING SUCH COMPOSITIONS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE |
| title | LONG LIFETIME ALPHA-HEMOLYSIN NANOPORES |
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