Cloning of CviPII nicking and modification system from chlorella virus NYs-1 and application of Nt.CviPII in random DNA amplification

Siu Hong Chan, Zhenyu Zhu, James L. Van Etten, Shuang Yong Xu

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The cloning and expression of the CviPII DNA nicking and modification system encoded by chlorella virus NYs-1 is described. The system consists of a co-linear MTase encoding gene (cviPIIM) and a nicking endonuclease encoding gene (cviPIINt) separated by 12 nt. M.CviPII possesses eight conserved amino acid motifs (I to VIII) typical of C5 MTases, but, like another chlorella virus MTase M.CviJI, lacks conserved motifs IX and X. In addition to modification of the first cytosine in CCD (D = A, G or T) sequences, M.CviPII modifies both the first two cytosines in CCAA and CCCG sites as well. Nt.CviPII has significant amino acid sequence similarity to Type II restriction endonuclease CviJI that recognizes an overlapping sequence (RG CY). Nt.CviPII was expressed in Escherichia coli with or without a His-tag in a host pre-modified by M.CviPII. Recombinant Nt.CviPII recognizes the DNA sequence CCD and cleaves the phosphodiester bond 5′ of the first cytosine while the other strand of DNA at this site is not affected. Nt.CviPII displays site preferences with CCR (R = A or G) sites preferred over CCT sites. Nt.CviPII is active from 16 to 65°C with a temperature optimum of 30-45°C. Nt.CviPII can be used to generate single-stranded DNAs (ssDNAs) for isothermal strand-displacement amplification. Nt.CviPII was used in combination with Bst DNA polymerase I large fragment to rapidly amplify anonymous DNA from genomic DNA or from a single bacterial colony.

Original languageEnglish (US)
Pages (from-to)6187-6199
Number of pages13
JournalNucleic acids research
Volume32
Issue number21
DOIs
StatePublished - Dec 1 2004

Fingerprint

Chlorella
Organism Cloning
Cytosine
Viruses
DNA
Type II Site Specific Deoxyribonucleases
DNA Polymerase I
Amino Acid Motifs
Endonucleases
Single-Stranded DNA
Genes
Amino Acid Sequence
Escherichia coli
Temperature

ASJC Scopus subject areas

  • Genetics

Cite this

Cloning of CviPII nicking and modification system from chlorella virus NYs-1 and application of Nt.CviPII in random DNA amplification. / Chan, Siu Hong; Zhu, Zhenyu; Van Etten, James L.; Xu, Shuang Yong.

In: Nucleic acids research, Vol. 32, No. 21, 01.12.2004, p. 6187-6199.

Research output: Contribution to journalArticle

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abstract = "The cloning and expression of the CviPII DNA nicking and modification system encoded by chlorella virus NYs-1 is described. The system consists of a co-linear MTase encoding gene (cviPIIM) and a nicking endonuclease encoding gene (cviPIINt) separated by 12 nt. M.CviPII possesses eight conserved amino acid motifs (I to VIII) typical of C5 MTases, but, like another chlorella virus MTase M.CviJI, lacks conserved motifs IX and X. In addition to modification of the first cytosine in CCD (D = A, G or T) sequences, M.CviPII modifies both the first two cytosines in CCAA and CCCG sites as well. Nt.CviPII has significant amino acid sequence similarity to Type II restriction endonuclease CviJI that recognizes an overlapping sequence (RG CY). Nt.CviPII was expressed in Escherichia coli with or without a His-tag in a host pre-modified by M.CviPII. Recombinant Nt.CviPII recognizes the DNA sequence CCD and cleaves the phosphodiester bond 5′ of the first cytosine while the other strand of DNA at this site is not affected. Nt.CviPII displays site preferences with CCR (R = A or G) sites preferred over CCT sites. Nt.CviPII is active from 16 to 65°C with a temperature optimum of 30-45°C. Nt.CviPII can be used to generate single-stranded DNAs (ssDNAs) for isothermal strand-displacement amplification. Nt.CviPII was used in combination with Bst DNA polymerase I large fragment to rapidly amplify anonymous DNA from genomic DNA or from a single bacterial colony.",
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N2 - The cloning and expression of the CviPII DNA nicking and modification system encoded by chlorella virus NYs-1 is described. The system consists of a co-linear MTase encoding gene (cviPIIM) and a nicking endonuclease encoding gene (cviPIINt) separated by 12 nt. M.CviPII possesses eight conserved amino acid motifs (I to VIII) typical of C5 MTases, but, like another chlorella virus MTase M.CviJI, lacks conserved motifs IX and X. In addition to modification of the first cytosine in CCD (D = A, G or T) sequences, M.CviPII modifies both the first two cytosines in CCAA and CCCG sites as well. Nt.CviPII has significant amino acid sequence similarity to Type II restriction endonuclease CviJI that recognizes an overlapping sequence (RG CY). Nt.CviPII was expressed in Escherichia coli with or without a His-tag in a host pre-modified by M.CviPII. Recombinant Nt.CviPII recognizes the DNA sequence CCD and cleaves the phosphodiester bond 5′ of the first cytosine while the other strand of DNA at this site is not affected. Nt.CviPII displays site preferences with CCR (R = A or G) sites preferred over CCT sites. Nt.CviPII is active from 16 to 65°C with a temperature optimum of 30-45°C. Nt.CviPII can be used to generate single-stranded DNAs (ssDNAs) for isothermal strand-displacement amplification. Nt.CviPII was used in combination with Bst DNA polymerase I large fragment to rapidly amplify anonymous DNA from genomic DNA or from a single bacterial colony.

AB - The cloning and expression of the CviPII DNA nicking and modification system encoded by chlorella virus NYs-1 is described. The system consists of a co-linear MTase encoding gene (cviPIIM) and a nicking endonuclease encoding gene (cviPIINt) separated by 12 nt. M.CviPII possesses eight conserved amino acid motifs (I to VIII) typical of C5 MTases, but, like another chlorella virus MTase M.CviJI, lacks conserved motifs IX and X. In addition to modification of the first cytosine in CCD (D = A, G or T) sequences, M.CviPII modifies both the first two cytosines in CCAA and CCCG sites as well. Nt.CviPII has significant amino acid sequence similarity to Type II restriction endonuclease CviJI that recognizes an overlapping sequence (RG CY). Nt.CviPII was expressed in Escherichia coli with or without a His-tag in a host pre-modified by M.CviPII. Recombinant Nt.CviPII recognizes the DNA sequence CCD and cleaves the phosphodiester bond 5′ of the first cytosine while the other strand of DNA at this site is not affected. Nt.CviPII displays site preferences with CCR (R = A or G) sites preferred over CCT sites. Nt.CviPII is active from 16 to 65°C with a temperature optimum of 30-45°C. Nt.CviPII can be used to generate single-stranded DNAs (ssDNAs) for isothermal strand-displacement amplification. Nt.CviPII was used in combination with Bst DNA polymerase I large fragment to rapidly amplify anonymous DNA from genomic DNA or from a single bacterial colony.

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