J 2009

Heterologous expression and molecular characterization of the NAD(P)H:acceptor oxidoreductase (FerB) of Paracoccus denitrificans

TESAŘÍK, Radek, Vojtěch SEDLÁČEK, Jana PLOCKOVÁ, Michaela WIMMEROVÁ, Jaroslav TURÁNEK et. al.

Basic information

Original name

Heterologous expression and molecular characterization of the NAD(P)H:acceptor oxidoreductase (FerB) of Paracoccus denitrificans

Name in Czech

Heterologni exprese a molekularni charakterizace NAD(P)H:acceptor oxidoreductasy (FerB) z Paracoccus denitrificans

Authors

TESAŘÍK, Radek (203 Czech Republic), Vojtěch SEDLÁČEK (203 Czech Republic), Jana PLOCKOVÁ (203 Czech Republic), Michaela WIMMEROVÁ (203 Czech Republic), Jaroslav TURÁNEK (203 Czech Republic) and Igor KUČERA (203 Czech Republic, guarantor)

Edition

Protein Expression and Purification, Elsevier, 2009, 1046-5928

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 1.563

RIV identification code

RIV/00216224:14310/09:00029452

Organization unit

Faculty of Science

UT WoS

000272103000016

Keywords in English

Quinone reductase; Protein expression in E. coli; His-tag fusion; Light scattering; Cross-linking; FT-IR spectrometry; Differential scanning calorimetry; Thermal inactivation

Tags

International impact, Reviewed
Změněno: 29/3/2010 11:04, prof. RNDr. Michaela Wimmerová, Ph.D.

Abstract

V originále

FerB is a flavoenzyme capable of reducing quinones, ferric complexes and chromate. Its expression in Escherichia coli as a hexahistidine fusion resulted in a functional product only when the tag was placed on the C-terminus. The molecular mass values estimated by gel permeation chromatography were compatible with the existence of either dimer or trimer, whereas the light scattering data, together with cross-linking experiments which yielded exclusively monomer and dimer bands on dodecyl sulfate-polyacrylamide gels, strongly supported a dimeric nature of both native and tagged form of FerB. These two proteins also exhibited almost identical secondary structures as judged by Fourier transform infra red spectrometry. The presence of tag, however, shifted the thermal denaturation curve towards lower temperatures and decreased the thermoresistance of enzyme activity. Despite somewhat lower thermal stability, the fusion protein is considered a better candidate for crystallization than the wild-type one due to a more negative value of its second optical virial coefficient.

In Czech

Heterologni exprese a molekularni charakterizace NAD(P)H:acceptor oxidoreductasy (FerB) z Paracoccus denitrificans

Links

GA525/07/1069, research and development project
Name: Struktura, funkce a regulace FerB, širokospecifické bakteriální oxidoreduktasy s možným významem pro ekotechnologii
Investor: Czech Science Foundation, Structure, function and regulation of FerB, a broad-specificity bacterial oxidoreductase of a potential ecotechnological relevance
MSM0021622413, plan (intention)
Name: Proteiny v metabolismu a při interakci organismů s prostředím
Investor: Ministry of Education, Youth and Sports of the CR, Proteins in metabolism and interaction of organisms with the environment