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Mónica Estupiñán

Mónica Estupiñán
AZTI · Marine Research Division

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9
Publications
794
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63
Citations

Publications

Publications (9)
Article
Full-text available
Two Alteromonas sp. strains isolated from deep seawater were grown to promote the production of exopolysaccharides (EPS, E611 and E805), which were incorporated into chitosan solutions to develop films. The combination of the major marine polysaccharides (chitosan and the isolated bacterial EPS) resulted in the formation of homogenous, transparent,...
Article
Full-text available
Omega-3 long-chain polyunsaturated fatty acids (LC-PUFAs), such as eicosapentaenoic acid (EPA) (20:5n-3) and docosahexaenoic acid (DHA) (22:6n-3), are considered essential for human health. Microorganisms are the primary producers of omega-3 fatty acids in marine ecosystems, representing a sustainable source of these lipids, as an alternative to th...
Article
We recently described LipJ, a mesophilic esterase clustering in a specific clade of bacterial lipase family I.5, bearing the same structure but several distinct sequence motifs. Two mutagenesis approaches were used here to modify LipJ by addition of common features of family 1.5 lipases, searching for changes on the activity profile. Iterative satu...
Poster
Full-text available
This work describes the identification, cloning and biochemical characterization of a new thermophilic lipolytic enzyme from Bacillus sp. JR3, a strain isolated in a previous work from an ancient volcanic soil. The cloned enzyme, never described before and designated as LipG, has a 533 amino acid sequence and a theoretical mass of 56 kDa. Enzymatic...
Article
Full-text available
A search for extremophile enzymes from ancient volcanic soils in El Hierro Island (Canary Islands, Spain) allowed isolation of a microbial sporulated strain collection from which several enzymatic activities were tested. Isolates were obtained after sample cultivation under several conditions of nutrient contents and temperature. Among the bacteria...
Article
Full-text available
As previously reported, P. aeruginosa genes PA2077 and PA2078 code for 10S-DOX (10S-Dioxygenase) and 7,10-DS (7,10-Diol Synthase) enzymes involved in long-chain fatty acid oxygenation through the recently described oleate-diol synthase pathway. Analysis of the amino acid sequence of both enzymes revealed the presence of two heme-binding motifs (CXX...
Data
##Assembly-Data-START## Assembly Method :: VectorNTI Contig Express v. 10 Sequencing Technology :: Sanger dideoxy sequencing ##Assembly-Data-END##
Article
Pseudomonas aeruginosa displays the ability to perform bioconversion of oleic acid into a class of hydroxylated fatty acids known as oxylipins. A diol synthase activity is responsible for such a conversion, which proceeds through the dioxygenation of oleic acid to release hydroperoxide 10-H(P)OME ((10S)-hydroxy-(8E)-octadecenoic acid), followed by...
Article
Bacterial proteins of the FadL family have frequently been associated to the uptake of exogenous hydrophobic substrates. However, their outer membrane location and involvement in substrate uptake have been inferred mainly from sequence similarity to Escherichia coli FadL, the first well-characterized outer membrane transporters of Long-Chain Fatty...

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