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Biochem Biophys Res Commun 1999 May 10;2582:457-63. doi: 10.1006/bbrc.1999.0663.
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Sea urchin TgBMP2/4 gene encoding a bone morphogenetic protein closely related to vertebrate BMP2 and BMP4 with maximal expression at the later stages of embryonic development.

Hwang SL , Chen CA , Chen C .

We have cloned a gene fragment (named TgBMP2/4) that encodes a protein homologous to vertebrate bone morphogenetic protein (BMP) 2 and BMP4 in the sea urchin Tripneustes gratilla. This peptide sequence contains 204 amino acids with 7 conserved cysteine residues at the C-terminus of the coding region and a cluster of basic amino acids that may serve as a signal for proteolytic cleavage. Sequence comparison and phylogenetic analyses reveal that TgBMP2/4 is closely related to vertebrate BMP2 and BMP4 as well as to amphioxus BMP2/4, with similarity levels ranging from 90% to 94% at the mature C-terminal domain. Northern blot analyses show that a 6.3-kb TgBMP2/4 mRNA appears first at the mesenchyme blastula stage and increases to a maximal level at the gastrula and pluteus stages. This expression pattern is different from that of a BMP2/4-related gene previously found in sea urchin.

PubMed ID: 10329409
Article link: Biochem Biophys Res Commun

Genes referenced: bmp2 LOC100887844