KOPRI Repository

Identification of proteolytic bacteria from the Arctic Chukchi Sea expedition cruise and characterization of cold-active proteases

Cited 6 time in wos
Cited 7 time in scopus

Full metadata record

DC Field Value Language
dc.contributor.authorPark, Ha Ju-
dc.contributor.authorLee, Yung Mi-
dc.contributor.authorKim, Sunghui-
dc.contributor.authorWi, Ah Ram-
dc.contributor.authorHan, Se Jong-
dc.contributor.authorKim, Han-Woo-
dc.contributor.authorKim, Il-Chan-
dc.contributor.authorYim, Joung Han-
dc.contributor.authorKim, Dockyu-
dc.coverage.spatialChukchi Sea-
dc.coverage.spatialArctic-
dc.date.accessioned2017-08-03T12:52:48Z-
dc.date.available2017-08-03T12:52:48Z-
dc.date.issued2014-
dc.description.abstractChukchi Sea expedition cruise of the Korean icebreaker Araon in 2012, a total of 15,696 bacteria were randomly isolated from Marine Broth 2216 agar plates. Of these, 2,526 (16%) showed proteolytic activity and were identified as mainly <em>Alteromonas</em> (31%), <em>Staphylococcus</em> (27%), and <em>Pseudoalteromonas</em> (14%). Among the proteolytic strains, seven were selected based on their significant ability to grow and produce a halo on skim milk plates at low temperatures (<5°C) owing to cold-active proteases. These strains were affiliated with the genus <em>Pseudoalteromonas</em> and were divided into three groups based on phylogenetic analysis of the 16S rRNA genes. Profiling cell membrane fatty acids confirmed the 16S rRNA-based differentiation and revealed the accordance between the two analyses. Seven genes for serine protease precursors were amplified from the corresponding strains, and based on sequence similarities, these genes were divided into three groups that were identical to those identified by the 16S rRNA phylogenetic analysis. Three protease genes from the representative strains of each group were composed of 2,127-2,130 bp, encoding 708-709 amino acids, and these genes yielded products with calculated molecular weights of approximately 72.3-72.8 kDa. Amino acid sequence analysis suggested that the precursors are members of the subtilase serine endo- and exo-peptidase clan and contain four domains (signal peptide, N-terminal prosequence, catalytic domain, and two pre-peptidase C-terminal domains). Upon expression in <em>E. coli,</em> each recombinant protease exhibited proteolytic activity on zymogram gels.-
dc.languageEnglish-
dc.subjectMicrobiology-
dc.subject.classificationAraon-
dc.titleIdentification of proteolytic bacteria from the Arctic Chukchi Sea expedition cruise and characterization of cold-active proteases-
dc.typeArticle-
dc.identifier.bibliographicCitationPark, Ha Ju, et al. 2014. "Identification of proteolytic bacteria from the Arctic Chukchi Sea expedition cruise and characterization of cold-active proteases". <em>Journal of Microbiolog</em>, 52(10): 825-833.-
dc.citation.titleJournal of Microbiolog-
dc.citation.volume52-
dc.citation.number10-
dc.citation.page825-833-
dc.identifier.doi10.1007/s12275-014-4226-6-
dc.coverage.x75°N-
dc.coverage.x76°08'N-
dc.coverage.x74°18'N-
dc.coverage.x78°14'N-
dc.coverage.y175°00'W-
dc.coverage.y174°56'W-
dc.coverage.y162°29'W-
dc.coverage.y169°30'W-
dc.coverage.z150m-
dc.coverage.z500m-
dc.coverage.z40m-
dc.coverage.z500m-
dc.subject.keywordArctic-
dc.subject.keywordCold-active enzyme-
dc.subject.keywordExpedition cruise-
dc.subject.keywordProtease-
dc.subject.keywordPseudoalteromonas-
dc.subject.keywordAraon-
dc.coverage.degreeX76.1333333333333-
dc.coverage.degreeX74.3-
dc.coverage.degreeX78.2333333333333-
dc.coverage.degreeX75-
dc.coverage.degreeY-174.933333333333-
dc.coverage.degreeY-162.483333333333-
dc.coverage.degreeY-169.5-
dc.coverage.degreeY-175-
dc.identifier.scopusid2-s2.0-84919950713-
dc.identifier.wosid000342392100003-
Appears in Collections  
2011-2016, Exploration of Future Resources in The Polar Oceans and Study on Their Utilization (K-POD) (11-16) / Yim; Joung Han (PM11090; PM12030; PM13030; PM14050; PM15050)
Files in This Item

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse