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Identification of a novel member of the TGF-beta superfamily highly expressed in human placenta

Open access
Lawton, Lee N, Bonaldo, Maria de Fatima, Jelenc, Pierre C, Qiu, Ling, Baumes, Susan A, Marcelino, Rudy A, de Jesus, Gracielle M, Wellington, Sandra, Knowles, James A, Warburton, Dorothy, Brown, Stephen, Soares, Marcelo Bento·1997·Gene

Abstract

While conducting a gene discovery effort targeted to transcripts of the prevalent and intermediate frequency classes in placenta throughout gestation, we identified a novel member of the TGF-beta superfamily that is expressed at high levels in human placenta. Hence, we named this factor 'Placental Transforming Growth Factor Beta' (PTGFB). The full-length sequence of the 1.2-kb PTGFB mRNA has the potential of encoding a putative pre-pro-PTGFB protein of 295 amino acids and a putative mature PTGFB protein of 112 amino acids. Multiple sequence alignments of PTGFB and representative members of all TGF-beta subfamilies evidenced a number of conserved residues, including the seven cysteines that are almost invariant in all members of the TGF-beta superfamily. The single-copy PTGFB gene was shown to be composed of only two exons of 309 bp and 891 bp, separated by a 2.9-kb intron. The gene was localized to chromosome 19p12-13.1 by fluorescence in-situ hybridization. Northern analyses revealed a complex tissue-specific pattern of expression and a second transcript of 1.9 kb that is predominant in adult skeletal muscle. Most importantly, the 1.2-kb PTGFB transcript was shown to be expressed in placenta at much higher levels than in any other human fetal or adult tissue surveyed.

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Metadata

Authors
Lawton, L. N., Bonaldo, M. D. F., Jelenc, P. C., Qiu, L., Baumes, S. A., Marcelino, R. A., de Jesus, G. M., Wellington, S., Knowles, J. A., Warburton, D., Brown, S., & Soares, M. B.
Venue
Gene
Publisher
Elsevier BV
Published
1997-12
Volume
203
Issue
1
Pages
17-26
ISSN
0378-1119 (ISSN-L)
OpenAlex
W2014629059
Cited by
207
References
0
FWCI
1.13
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: Identification of a novel member of the TGF-beta superfamily highly expressed in human placenta. https://app.cochat.ai/papers/10.1016/s0378-1119(97)00485-x
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Lawton, L. N., Bonaldo, M. D. F., Jelenc, P. C., Qiu, L., Baumes, S. A., Marcelino, R. A., de Jesus, G. M., Wellington, S., Knowles, J. A., Warburton, D., Brown, S., & Soares, M. B. (1997). Identification of a novel member of the TGF-beta superfamily highly expressed in human placenta. Gene. https://doi.org/10.1016/s0378-1119(97)00485-x

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