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Linear array of conserved sequence motifs to discriminate protein subfamilies: study on pyridine nucleotide-disulfide reductases

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dc.creator Ávila, César L.
dc.creator De Las Rivas, Javier
dc.date 2008-04-03T12:44:54Z
dc.date 2008-04-03T12:44:54Z
dc.date 2007-03-16
dc.date.accessioned 2017-01-31T01:01:27Z
dc.date.available 2017-01-31T01:01:27Z
dc.identifier BMC Bioinformatics 8: 96 (2007)
dc.identifier 1471-2105
dc.identifier http://hdl.handle.net/10261/3434
dc.identifier 10.1186/1471-2105-8-96
dc.identifier.uri http://dspace.mediu.edu.my:8181/xmlui/handle/10261/3434
dc.description This is an Open Access article distributed under the terms of the Creative Commons Attribution License.-- et al.
dc.description [Background]: The pyridine nucleotide disulfide reductase (PNDR) is a large and heterogeneous protein family divided into two classes (I and II), which reflect the divergent evolution of its characteristic disulfide redox active site. However, not all the PNDR members fit into these categories and this suggests the need of further studies to achieve a more comprehensive classification of this complex family.
dc.description [Results]: A workflow to improve the clusterization of protein families based on the array of linear conserved motifs is designed. The method is applied to the PNDR large family finding two main groups, which correspond to PNDR classes I and II. However, two other separate protein clusters, previously classified as class I in most databases, are outgrouped: the peroxide reductases (NAOX, NAPE) and the type II NADH dehydrogenases (NDH-2). In this way, two novel PNDR classes III and IV for NAOX/NAPE and NDH-2 respectively are proposed. By knowledge-driven biochemical and functional data analyses done on the new class IV, a linear array of motifs putatively related to Cu(II)-reductase activity is detected in a specific subset of NDH-2.
dc.description [Conclusion]: The results presented are a novel contribution to the classification of the complex and large PNDR protein family, supporting its reclusterization into four classes. The linear array of motifs detected within the class IV PNDR subfamily could be useful as a signature for a particular subgroup of NDH-2.
dc.description This research was supported by grants PIP 6399 from Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), PICT 22221 from Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT), and 26/D-313 from Secretaría de Ciencia y Técnica de la Universidad Nacional de Tucumán (CIUNT) all in Argentina.
dc.description Peer reviewed
dc.format 915080 bytes
dc.format application/pdf
dc.language eng
dc.publisher BioMed Central
dc.relation Publisher’s version
dc.relation http://dx.doi.org/10.1186/1471-2105-8-96
dc.rights openAccess
dc.title Linear array of conserved sequence motifs to discriminate protein subfamilies: study on pyridine nucleotide-disulfide reductases
dc.type Artículo


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