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A Schnurri/Mad/Medea complex attenuates the dorsal-twist gradient readout at vnd.
Crocker J, Erives A. Crocker J, et al. Among authors: erives a. Dev Biol. 2013 Jun 1;378(1):64-72. doi: 10.1016/j.ydbio.2013.03.002. Epub 2013 Mar 13. Dev Biol. 2013. PMID: 23499655
Thus, a low threshold response adapted for an early temporal onset may be inappropriate when the desired spatial response is a spatially-limited, high-threshold expression pattern. Here, we identify such a case with the Drosophila vnd locus, which is a
Thus, a low threshold response adapted for an early temporal onset may be inappropriate when the desired spatial response is a
Characterization of a maternal T-Box gene in Ciona intestinalis.
Erives A, Levine M. Erives A, et al. Dev Biol. 2000 Sep 1;225(1):169-78. doi: 10.1006/dbio.2000.9815. Dev Biol. 2000. PMID: 10964472
The CiVegTR protein binds to specific sequences within a minimal, 262-bp enhancer that mediates Ci-snail expression in the tail muscles. ...These results suggest that CiVegTR encodes a component of the classical muscle determinant that was first identified in ascidi …
The CiVegTR protein binds to specific sequences within a minimal, 262-bp enhancer that mediates Ci-snail expression in the tail muscl …
Lineage-specific regulation of the Ciona snail gene in the embryonic mesoderm and neuroectoderm.
Erives A, Corbo JC, Levine M. Erives A, et al. Dev Biol. 1998 Feb 15;194(2):213-25. doi: 10.1006/dbio.1997.8810. Dev Biol. 1998. PMID: 9501022
The snail gene encodes a highly conserved, zinc-finger transcription factor that has been implicated in the specification of mesodermal and neuronal tissues in a variety of organisms. ...A minimal, 504-bp cis-regulatory sequence from the Ci-sna promoter regio …
The snail gene encodes a highly conserved, zinc-finger transcription factor that has been implicated in the specification of mesoderm …
Evolution acts on enhancer organization to fine-tune gradient threshold readouts.
Crocker J, Tamori Y, Erives A. Crocker J, et al. Among authors: erives a. PLoS Biol. 2008 Nov 4;6(11):e263. doi: 10.1371/journal.pbio.0060263. PLoS Biol. 2008. PMID: 18986212 Free PMC article.
The NEEs share a common organization of binding sites and as a set would be useful to study the relationship between CRM organization and CRM activity across evolving lineages. ...We show that the individual NEE modules across a genome in any one lineage have …
The NEEs share a common organization of binding sites and as a set would be useful to study the relationship between CRM organ …
Coordinate enhancers share common organizational features in the Drosophila genome.
Erives A, Levine M. Erives A, et al. Proc Natl Acad Sci U S A. 2004 Mar 16;101(11):3851-6. doi: 10.1073/pnas.0400611101. Epub 2004 Mar 16. Proc Natl Acad Sci U S A. 2004. PMID: 15026577 Free PMC article.
The evolution of animal diversity depends on changes in the regulation of a relatively fixed set of protein-coding genes. To understand how these changes might arise, we examined the organization of shared sequence motifs in four coordinately regulated neurogenic enhancers …
The evolution of animal diversity depends on changes in the regulation of a relatively fixed set of protein-coding genes. To understa …
Non-homologous structured CRMs from the Ciona genome.
Erives A. Erives A. J Comput Biol. 2009 Feb;16(2):369-77. doi: 10.1089/cmb.2008.20TT. J Comput Biol. 2009. PMID: 19193153
These results suggest that organization of binding sites over the length of the enhancer sequence is a critical aspect of gene regulatory biology. The extent to which this is a general principle will facilitate our ability to identify, decipher, and categorize the r …
These results suggest that organization of binding sites over the length of the enhancer sequence is a critical aspect of gene regula …
Temporal expression patterns of 39 Brachyury-downstream genes associated with notochord formation in the Ciona intestinalis embryo.
Hotta K, Takahashi H, Erives A, Levine M, Satoh N. Hotta K, et al. Among authors: erives a. Dev Growth Differ. 1999 Dec;41(6):657-64. doi: 10.1046/j.1440-169x.1999.00467.x. Dev Growth Differ. 1999. PMID: 10646795
Gene expression is restricted to notochord precursor cells, and Ci-Bra plays a key role in notochord differentiation. In a previous study, nearly 50 cDNA clones for potential Ci-Bra-downstream genes that are expressed in notochord cells were isolated. ...
Gene expression is restricted to notochord precursor cells, and Ci-Bra plays a key role in notochord differentiation. In a pre …
Dorsoventral patterning of the vertebrate neural tube is conserved in a protochordate.
Corbo JC, Erives A, Di Gregorio A, Chang A, Levine M. Corbo JC, et al. Among authors: erives a. Development. 1997 Jun;124(12):2335-44. Development. 1997. PMID: 9199360
Here we analyze the expression of HNF-3beta and snail homologues in the ascidian, Ciona intestinalis, a member of the subphylum Urochordata, the earliest branch in the chordate phylum. ...We propose that precursors of the floor plate and neural crest were present in a
Here we analyze the expression of HNF-3beta and snail homologues in the ascidian, Ciona intestinalis, a member of the subphylum Uroch …
Evolution of the holozoan ribosome biogenesis regulon.
Brown SJ, Cole MD, Erives AJ. Brown SJ, et al. Among authors: erives aj. BMC Genomics. 2008 Sep 24;9:442. doi: 10.1186/1471-2164-9-442. BMC Genomics. 2008. PMID: 18816399 Free PMC article.
RESULTS: Here we present genome-wide analyses indicating that a distinct mode of RiBi regulation co-evolved with the E(CG)-binding, Myc:Max bHLH heterodimer complex in a stem-holozoan, the ancestor of both Metazoa and Choanoflagellata, the protozoan group most close …
RESULTS: Here we present genome-wide analyses indicating that a distinct mode of RiBi regulation co-evolved with the E(CG)-binding, M …
Temporal regulation of the muscle gene cascade by Macho1 and Tbx6 transcription factors in Ciona intestinalis.
Kugler JE, Gazdoiu S, Oda-Ishii I, Passamaneck YJ, Erives AJ, Di Gregorio A. Kugler JE, et al. Among authors: erives aj. J Cell Sci. 2010 Jul 15;123(Pt 14):2453-63. doi: 10.1242/jcs.066910. J Cell Sci. 2010. PMID: 20592183 Free PMC article.
For over a century, muscle formation in the ascidian embryo has been representative of 'mosaic' development. The molecular basis of muscle-fate predetermination has been partly elucidated with the discovery of Macho1, a maternal zinc-finger transcription factor nece …
For over a century, muscle formation in the ascidian embryo has been representative of 'mosaic' development. The molecular basis of m …
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