Molecular characterisation of sea bream (Sparus aurata) transforming growth factor b1.

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Abstract

A transforming growth factor beta1 (TGF beta1) full length cDNA was characterised and sequenced from the head kidney of sea bream (Sparus aurata) previously challenged with a nodavirus. The cloned cDNA of 1778 bp contains a predicted open reading frame of 379 amino acids, which includes the mature peptide region of 112 amino acids. The regulating region of the peptide possesses four potential N-linked glycosylation sites (N-X-T/S), as well as an RGD integrin binding site, an RKKR tetrabasic cut site and nine conserved cysteines all characteristic of the TGF beta superfamily. Compared to other teleost TGF beta1 genes, the sea bream TGF beta1 is most closely related to hybrid striped bass (Morone saxatilis x M. chrysops) TGF beta1 (80% amino acid identity).

The genomic organisation of TGF beta1 was determined through the generation of contiguous PCR clones. The sea bream TGF beta1 gene is approximately 3.6 kb in length and consists of five coding regions. Two introns are absent in comparison to the genomic organisation of rainbow trout Oncorhynchus mykiss TGF,81, whilst an additional intron not present in other sequenced TGF beta genes, but present in the trout TGF beta1 gene, is conserved in sea bream.

A reverse transcription polymerase chain reaction (RT-PCR) assay was developed to study TGF beta expression in different sea bream tissues. Constitutive TGF beta1 expression was detected in the liver, brain, muscle, kidney, heart, gills and spleen of sea bream, as well as in head kidney macrophages and blood leucocytes. (C) 2002 Elsevier Science Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)405-421
Number of pages16
JournalFish & Shellfish Immunology
Volume14
DOIs
Publication statusPublished - 2003

Keywords

  • transforming growth factor beta
  • sea bream
  • cytokine
  • cDNA
  • gene
  • TROUT ONCORHYNCHUS-MYKISS
  • RESPIRATORY BURST ACTIVITY
  • NECROSIS-FACTOR-ALPHA
  • RAINBOW-TROUT
  • TGF-BETA
  • MESSENGER-RNA
  • CLONING
  • EXPRESSION
  • GENE
  • FISH

Cite this

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title = "Molecular characterisation of sea bream (Sparus aurata) transforming growth factor b1.",
abstract = "A transforming growth factor beta1 (TGF beta1) full length cDNA was characterised and sequenced from the head kidney of sea bream (Sparus aurata) previously challenged with a nodavirus. The cloned cDNA of 1778 bp contains a predicted open reading frame of 379 amino acids, which includes the mature peptide region of 112 amino acids. The regulating region of the peptide possesses four potential N-linked glycosylation sites (N-X-T/S), as well as an RGD integrin binding site, an RKKR tetrabasic cut site and nine conserved cysteines all characteristic of the TGF beta superfamily. Compared to other teleost TGF beta1 genes, the sea bream TGF beta1 is most closely related to hybrid striped bass (Morone saxatilis x M. chrysops) TGF beta1 (80{\%} amino acid identity).The genomic organisation of TGF beta1 was determined through the generation of contiguous PCR clones. The sea bream TGF beta1 gene is approximately 3.6 kb in length and consists of five coding regions. Two introns are absent in comparison to the genomic organisation of rainbow trout Oncorhynchus mykiss TGF,81, whilst an additional intron not present in other sequenced TGF beta genes, but present in the trout TGF beta1 gene, is conserved in sea bream.A reverse transcription polymerase chain reaction (RT-PCR) assay was developed to study TGF beta expression in different sea bream tissues. Constitutive TGF beta1 expression was detected in the liver, brain, muscle, kidney, heart, gills and spleen of sea bream, as well as in head kidney macrophages and blood leucocytes. (C) 2002 Elsevier Science Ltd. All rights reserved.",
keywords = "transforming growth factor beta, sea bream, cytokine, cDNA, gene, TROUT ONCORHYNCHUS-MYKISS, RESPIRATORY BURST ACTIVITY, NECROSIS-FACTOR-ALPHA, RAINBOW-TROUT, TGF-BETA, MESSENGER-RNA, CLONING, EXPRESSION, GENE, FISH",
author = "Secombes, {Christopher John}",
year = "2003",
doi = "10.1006/fsim.2002.0444",
language = "English",
volume = "14",
pages = "405--421",
journal = "Fish & Shellfish Immunology",
issn = "1050-4648",
publisher = "ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD",

}

TY - JOUR

T1 - Molecular characterisation of sea bream (Sparus aurata) transforming growth factor b1.

AU - Secombes, Christopher John

PY - 2003

Y1 - 2003

N2 - A transforming growth factor beta1 (TGF beta1) full length cDNA was characterised and sequenced from the head kidney of sea bream (Sparus aurata) previously challenged with a nodavirus. The cloned cDNA of 1778 bp contains a predicted open reading frame of 379 amino acids, which includes the mature peptide region of 112 amino acids. The regulating region of the peptide possesses four potential N-linked glycosylation sites (N-X-T/S), as well as an RGD integrin binding site, an RKKR tetrabasic cut site and nine conserved cysteines all characteristic of the TGF beta superfamily. Compared to other teleost TGF beta1 genes, the sea bream TGF beta1 is most closely related to hybrid striped bass (Morone saxatilis x M. chrysops) TGF beta1 (80% amino acid identity).The genomic organisation of TGF beta1 was determined through the generation of contiguous PCR clones. The sea bream TGF beta1 gene is approximately 3.6 kb in length and consists of five coding regions. Two introns are absent in comparison to the genomic organisation of rainbow trout Oncorhynchus mykiss TGF,81, whilst an additional intron not present in other sequenced TGF beta genes, but present in the trout TGF beta1 gene, is conserved in sea bream.A reverse transcription polymerase chain reaction (RT-PCR) assay was developed to study TGF beta expression in different sea bream tissues. Constitutive TGF beta1 expression was detected in the liver, brain, muscle, kidney, heart, gills and spleen of sea bream, as well as in head kidney macrophages and blood leucocytes. (C) 2002 Elsevier Science Ltd. All rights reserved.

AB - A transforming growth factor beta1 (TGF beta1) full length cDNA was characterised and sequenced from the head kidney of sea bream (Sparus aurata) previously challenged with a nodavirus. The cloned cDNA of 1778 bp contains a predicted open reading frame of 379 amino acids, which includes the mature peptide region of 112 amino acids. The regulating region of the peptide possesses four potential N-linked glycosylation sites (N-X-T/S), as well as an RGD integrin binding site, an RKKR tetrabasic cut site and nine conserved cysteines all characteristic of the TGF beta superfamily. Compared to other teleost TGF beta1 genes, the sea bream TGF beta1 is most closely related to hybrid striped bass (Morone saxatilis x M. chrysops) TGF beta1 (80% amino acid identity).The genomic organisation of TGF beta1 was determined through the generation of contiguous PCR clones. The sea bream TGF beta1 gene is approximately 3.6 kb in length and consists of five coding regions. Two introns are absent in comparison to the genomic organisation of rainbow trout Oncorhynchus mykiss TGF,81, whilst an additional intron not present in other sequenced TGF beta genes, but present in the trout TGF beta1 gene, is conserved in sea bream.A reverse transcription polymerase chain reaction (RT-PCR) assay was developed to study TGF beta expression in different sea bream tissues. Constitutive TGF beta1 expression was detected in the liver, brain, muscle, kidney, heart, gills and spleen of sea bream, as well as in head kidney macrophages and blood leucocytes. (C) 2002 Elsevier Science Ltd. All rights reserved.

KW - transforming growth factor beta

KW - sea bream

KW - cytokine

KW - cDNA

KW - gene

KW - TROUT ONCORHYNCHUS-MYKISS

KW - RESPIRATORY BURST ACTIVITY

KW - NECROSIS-FACTOR-ALPHA

KW - RAINBOW-TROUT

KW - TGF-BETA

KW - MESSENGER-RNA

KW - CLONING

KW - EXPRESSION

KW - GENE

KW - FISH

U2 - 10.1006/fsim.2002.0444

DO - 10.1006/fsim.2002.0444

M3 - Article

VL - 14

SP - 405

EP - 421

JO - Fish & Shellfish Immunology

JF - Fish & Shellfish Immunology

SN - 1050-4648

ER -