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D9380

Sigma-Aldrich

DNA Polymerase I from Escherichia coli lysogenic for NM 964

buffered aqueous glycerol solution

Sinônimo(s):

Kornberg Polymerase

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About This Item

Número CAS:
Número da licença da enzima:
Número MDL:
Código UNSPSC:
12352204
NACRES:
NA.53

grau

for molecular biology

forma

buffered aqueous glycerol solution

peso molecular

109 kDa

concentração

5,000-15,000 units/mL

nº de adesão UniProt

atividade externa

Endonuclease, none detected

Condições de expedição

wet ice

temperatura de armazenamento

−20°C

Informações sobre genes

Escherichia coli K12 ... polA(948356)

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Descrição geral

DNA polymerase I (holoenzyme) has 5′→3′ and 3′→5′ exonuclease activities in addition to its synthetic activity. This bifunctional activity enables the enzyme to use nicks or gaps in double stranded DNA as starting points for DNA synthesis. The 5′→3′ exonuclease activity degrades the DNA strand complementary to the template strand beginning at the nick. DNA synthesis begins at the 3′-end of the nick and produces a new strand of DNA complementary to the template. The net result is the movement of the polymerase along the template strand (nick translation) until the DNA complementary to the template (from the site of the original nick to the 5′-end of the template strand) is replaced.

Aplicação

DNA Polymerase I from Escherichia coli has been used to study the effects of the anti-tumor drug cis-diaminedichloroplatinum (II) on the enzyme activity.
Suitable for:
  • Highly specific DNA probes by nick translation
  • In vitro synthesis of complementary cDNA strand
  • In vitro synthesis of DNA
  • Produce blunt ends from 5′ and 3′ overhangs

Componentes

DNase Polymerase I is supplied in a solution of 50% glycerol containing 100 mM potassium phosphate buffer (pH 6.5), and 1 mM dithiothreitol.

Definição da unidade

One unit converts 10 nanomoles of deoxyribonucleoside triphosphates into acid insoluble material in 30 min at 37 °C.

Pictogramas

Health hazard

Palavra indicadora

Danger

Frases de perigo

Declarações de precaução

Classificações de perigo

Resp. Sens. 1

Código de classe de armazenamento

10 - Combustible liquids

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)


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Lehman, I.R., et al.
The Enzymes, 14A, 16-38 (1981)
Inhibition of Escherichia coli DNA polymerase-I by the anti-cancer drug cis-diaminedichloroplatinum(II): what roles do polymerases play in cis-platin-induced cytotoxicity?
Rebecca K
Febs Letters (1999)
H Okayama et al.
Molecular and cellular biology, 2(2), 161-170 (1982-02-01)
A widely recognized difficulty of presently used methods for cDNA cloning is obtaining cDNA segments that contain the entire nucleotide sequence of the corresponding mRNA. The cloning procedure described here mitigates this shortcoming. Of the 10(5) plasmid-cDNA recombinants obtained per
Micrococcus luteus deoxyribonucleic acid polymerase. Studies of the enzymic reaction and properties of the deoxyribonucleic acid product.
S J Harwood et al.
The Journal of biological chemistry, 245(21), 5614-5624 (1970-11-10)
J M D'Alessio et al.
Nucleic acids research, 16(5), 1999-2014 (1988-03-25)
A simple method for generating cDNA libraries has been described (1) in which RNase H-DNA polymerase I-mediated second-strand cDNA synthesis primes from an RNA oligonucleotide derived from the 5' (capped) end of mRNA. The size of this oligonucleotide and the

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