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Sökning: WFRF:(Madrid Cristina) > (2004) > YdgT, the Hha paral...

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FältnamnIndikatorerMetadata
00002878naa a2200409 4500
001oai:DiVA.org:umu-16480
003SwePub
008071003s2004 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-164802 URI
040 a (SwePub)umu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Paytubi, Sònia4 aut
2451 0a YdgT, the Hha paralogue in Escherichia coli, forms heteromeric complexes with H-NS and StpA.
264 1c 2004
338 a print2 rdacarrier
520 a In enteric bacteria, proteins of the Hha/YmoA family play a role in the regulation of gene expression in response to environmental factors. Interaction of both Hha and YmoA with H-NS has been reported, and an Hha/H-NS complex has been shown to modulate expression in Escherichia coli of the haemolysin operon of plasmid pHly152. In addition to the hns gene, the chromosome of E. coli and other enteric bacteria also includes the stpA gene that encodes the StpA protein, an H-NS paralogue. We report here the identification of the Hha paralogue in E. coli, the YdgT protein. As Hha paralogue, YdgT appears to fulfil some of the functions reported for StpA as H-NS paralogue: YdgT is overexpressed in hha mutants and can compensate, at least partially, some of the hha-induced phenotypes. We also demonstrate that YdgT interacts both with H-NS and with StpA. Protein cross-linking studies showed that YdgT/H-NS heteromeric complexes are generated within the bacterial cell. The StpA protein, which is subjected to Lon-mediated turnover, was less stable in the absence of Hha or YdgT. Our findings suggest that Hha, YdgT and StpA may form complexes in vivo.
653 a Bacterial Proteins/genetics/*metabolism
653 a DNA-Binding Proteins/genetics/*metabolism
653 a Escherichia coli/genetics/growth & development/*metabolism
653 a Escherichia coli Proteins/genetics/*metabolism
653 a Gene Expression Regulation; Bacterial
653 a Hemolysin Proteins/metabolism
653 a Molecular Chaperones/genetics/*metabolism
653 a Mutation
7001 a Madrid, Cristina4 aut
7001 a Forns, Núria4 aut
7001 a Nieto, José María4 aut
7001 a Balsalobre, Carlos4 aut
7001 a Uhlin, Bernt Ericu Umeå universitet,Institutionen för molekylärbiologi (Medicinska fakulteten),Uhlin4 aut0 (Swepub:umu)beuh0001
7001 a Juárez, Antonio4 aut
7102 a Umeå universitetb Institutionen för molekylärbiologi (Medicinska fakulteten)4 org
7730 t Mol Microbiolg 54:1, s. 251-63q 54:1<251-63x 0950-382X
8564 u http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Retrieve&list_uids=15458420&dopt=Citation
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-16480

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