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Identification of transthyretin in fish (Sparus aurata): cDNA cloning and characterisation

dc.contributor.authorSantos, CRA
dc.contributor.authorPower, DM
dc.date.accessioned2018-12-07T14:57:50Z
dc.date.available2018-12-07T14:57:50Z
dc.date.issued1999-05
dc.description.abstractTransthyretin (TTR) has been proposed to have first evolved in reptiles and is one of the three plasma proteins important in the transport of thyroid hormones in higher vertebrates. A full-length cDNA encoding TTR was isolated from a sea bream (Sparus aurata) liver cDNA library using a homologous TTR cDNA probe generated by RT-PCR. Comparison of the deduced amino acid sequence of sea bream TTR with other published sequences, revealed an overall identity of 47-54%, although the amino acids in the active binding site were almost 100% conserved. Distribution of TTR was studied in sea bream adult tissue by RT-PCR and was detected in liver, brain, pituitary, gills, kidney, intestine and testis although northern blot analysis only revealed TTR in the liver, suggesting that in sea bream, liver is the main source of this protein. TTR was also expressed in larvae from the first day post-hatch (48h post-fertilisation), Analysis of thyroxine (T-4) and triiodo-L-thyronine (T-3) binding to sea bream serum proteins demonstrated that both T-4 and T-3 bind to albumin and TTR. By demonstrating the existence of TTR in teleost fish this study indicates TTR must have evolved in a common fish ancestor of the tetrapod evolutionary line.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1210/en.140.5.2430
dc.identifier.issn0013-7227
dc.identifier.issn1945-7170
dc.identifier.urihttp://hdl.handle.net/10400.1/11723
dc.language.isoeng
dc.peerreviewedyes
dc.publisherEndocrine Society
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectThyroid-hormone-binding
dc.subjectThyroxine transport
dc.subjectGene-expression
dc.subjectChoroid-Plexus
dc.subjectPlasma-proteins
dc.subjectEvolution
dc.subjectPrealbumin
dc.subjectBrain
dc.subjectLiver
dc.subjectMarsupials
dc.titleIdentification of transthyretin in fish (Sparus aurata): cDNA cloning and characterisation
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage2433
oaire.citation.issue5
oaire.citation.startPage2430
oaire.citation.titleEndocrinology
oaire.citation.volume140
person.familyNameSantos
person.familyNamePower
person.givenNameCecilia
person.givenNameDeborah Mary
person.identifier.ciencia-id761A-7ED2-D68F
person.identifier.ciencia-id891A-8A44-3CAE
person.identifier.orcid0000-0001-6074-7825
person.identifier.orcid0000-0003-1366-0246
person.identifier.ridC-9032-2016
person.identifier.scopus-author-id7201458751
person.identifier.scopus-author-id7101806760
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication0f8d7c69-8b13-4668-a14b-2d4d6741a6dd
relation.isAuthorOfPublicationc68f5ffb-63f6-4c70-8957-29e464fb59c0
relation.isAuthorOfPublication.latestForDiscovery0f8d7c69-8b13-4668-a14b-2d4d6741a6dd

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