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. 2010 Jan 28;11(2):407–426. doi: 10.3390/ijms11020407

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© 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 3. — The sea urchin 1α fibrillar collagen chain. (A) Modular structure of the 1α chain. Domains are illustrated as in Figure 1. (B) the exon/intron structure of COLP1α, the gene encoding the S. purpuratus 1α chain. The COLP1α sequence is available using a sea urchin server (http://genome.ucsc.edu/cgi-bin/hgGateway; Scaffold69286:454253-495522 bp). Exons are represented by closed boxes. Below the COLP1α gene, the short and putative long mRNA isoforms are schematized. The four ESTs specific to the long 1α mRNA isoform are indicated with their accession number. (C) Northern-blot analysis of 1α mRNA. A short-exposure time of this Northern-blot was shown previously [34]. Here, we present different times of autoradiography, from 2 h to 72 h.