Albert J. Poustka

Monte Carlo analysis of an ODE Model of the Sea Urchin Endomesoderm Network (2009)

Kühn, Clemens, Wierling, Christoph, Kühn, Alexander, Klipp, Edda, Panopoulou, Georgia, Lehrach, Hans, ...

Abstract Background Gene Regulatory Networks (GRNs) control the differentiation, specification and function of cells at the genomic level. The levels of interactions within large GRNs are of enormous...

Deeply conserved chordate noncoding sequences preserve genome synteny but do not drive gene duplicate retention (2009)

Hufton, Andrew L., Mathia, Susanne, Braun, Helene, Georgi, Udo, Lehrach, Hans, Vingron, Martin, ...

Animal genomes possess highly conserved cis-regulatory sequences that are often found near genes that regulate transcription and development. Researchers have proposed that the strong conservation of...

In-depth, high-accuracy proteomics of sea urchin tooth organic matrix (2008)

Mann, Karlheinz, Poustka, Albert J, Mann, Matthias

Abstract Background The organic matrix contained in biominerals plays an important role in regulating mineralization and in determining biomineral properties. However, most components of biomineral...

The sea urchin (Strongylocentrotus purpuratus) test and spine proteomes (2008)

Mann, Karlheinz, Poustka, Albert J, Mann, Matthias

Abstract Background The organic matrix of biominerals plays an important role in biomineral formation and in determining biomineral properties. However, most components of biomineral matrices remain...

GOblet: Annotation of anonymous sequence data with Gene Ontology and Pathway terms (2008)

Groth, Detlef, Hartmann, Stefanie, Panopoulou, Georgia, Poustka, Albert J., Hennig, Steffen

The functional annotation of genomic data has become a major task for the ever-growing number of sequencing projects. In order to address this challenge, we recently developed GOblet, a free web...

Ca 2+ signaling occurs via second messenger release from intraorganelle synthesis sites (2008)

Davis, Lianne C., Morgan, Anthony J., Ruas, Margarida, Wong, Julian L., Graef, Richard M., Poustka, Albert J., ...

Cyclic ADP-ribose is an important Ca2+-mobilizing cytosolic messenger synthesized from β-NAD+ by ADP-ribosyl cyclases (ARCs). However, the focus upon ectocellular mammalian ARCs (CD38 and CD157) has...

GOblet : annotation of anonymous sequence data with Gene Ontology and pathway terms (2008)

Groth, Detlef, Hartmann, Stefanie, Panopoulou, Georgia, Poustka, Albert J., Hennig, Steffen

The functional annotation of genomic data has become a major task for the ever-growing number of sequencing projects. In order to address this challenge, we recently developed GOblet, a free web...

Evolution of a core gene network for skeletogenesis in chordates (2008)

Hecht, Jochen, Stricker, Sigmar, Wiecha, Ulrike, Stiege, Asita, Panopoulou, Georgia, Podsiadlowski, Lars, ...

The skeleton is one of the most important features for the reconstruction of vertebrate phylogeny but few data are available to understand its molecular origin. In mammals the Runt genes are central...

Early vertebrate whole genome duplications were predated by a period of intense genome rearrangement (2008)

Hufton, Andrew L., Groth, Detlef, Vingron, Martin, Lehrach, Hans, Poustka, Albert J., Panopoulou, Georgia

Researchers, supported by data from polyploid plants, have suggested that whole genome duplication (WGD) may induce genomic instability and rearrangement, an idea which could have important...

The sea urchin (Strongylocentrotus purpuratus) test and spine proteomes (2008)

Mann, Karlheinz, Poustka, Albert J., Mann, Matthias

Background The organic matrix of biominerals plays an important role in biomineral formation and in determining biomineral properties. However, most components of biomineral matrices remain unknown...

In-depth, high-accuracy proteomics of sea urchin tooth organic matrix (2008)

Mann, Karlheinz, Poustka, Albert J., Mann, Matthias

Background The organic matrix contained in biominerals plays an important role in regulating mineralization and in determining biomineral properties. However, most components of biomineral matrices...

Early vertebrate whole genome duplications were predated by a period of intense genome rearrangement (2008)

Hufton, Andrew L., Groth, Detlef, Vingron, Martin, Lehrach, Hans, Poustka, Albert J., Panopoulou, Georgia

Researchers, supported by data from polyploid plants, have suggested that whole genome duplication (WGD) may induce genomic instability and rearrangement, an idea which could have important...

A global view of gene expression in lithium and zinc treated sea urchin embryos: new components of gene regulatory networks (2007)

Poustka, Albert J, Kühn, Alexander, Groth, Detlef, Weise, Vesna, Yaguchi, Shunsuke, Burke, Robert D, ...

Abstract Background The genome of the sea urchin Strongylocentrotus purpuratus has recently been sequenced because it is a major model system for the study of gene regulatory networks. Embryonic...

A global view of gene expression in lithium and zinc treated sea urchin embryos: new components of gene regulatory networks (2007)

Poustka, Albert J., Kühn, Alexander, Groth, Detlef, Weise, Vesna, Yaguchi, Shunsuke, Burke, Robert D., ...

Background The genome of the sea urchin Strongylocentrotus purpuratus has recently been sequenced because it is a major model system for the study of gene regulatory networks. Embryonic expression...

Gene identification and analysis of transcripts differentially regulated in fracture healing by EST sequencing in the domestic sheep (2006)

Hecht, Jochen, Kuhl, Heiner, Haas, Stefan A, Bauer, Sebastian, Poustka, Albert J, Lienau, Jasmin, ...

Abstract Background The sheep is an important model animal for testing novel fracture treatments and other medical applications. Despite these medical uses and the well known economic and cultural...

Gene identification and analysis of transcripts differentially regulated in fracture healing by EST sequencing in the domestic sheep (2006)

Hecht, Jochen, Kuhl, Heiner, Haas, Stefan A ., Bauer, Sebastian, Poustka, Albert J., Lienau, Jasmin, ...

Background The sheep is an important model animal for testing novel fracture treatments and other medical applications. Despite these medical uses and the well known economic and cultural importance...

Gene identification and analysis of transcripts differentially regulated in fracture healing by EST sequencing in the domestic sheep (2006)

Hecht, Jochen, Kuhl, Heiner, Haas, Stefan A ., Bauer, Sebastian, Poustka, Albert J., Lienau, Jasmin, ...

Background The sheep is an important model animal for testing novel fracture treatments and other medical applications. Despite these medical uses and the well known economic and cultural importance...

Gene identification and analysis of transcripts differentially regulated in fracture healing by EST sequencing in the domestic sheep (2006)

Hecht, Jochen, Kuhl, Heiner, Haas, Stefan A ., Bauer, Sebastian, Poustka, Albert J., Lienau, Jasmin, ...

Background The sheep is an important model animal for testing novel fracture treatments and other medical applications. Despite these medical uses and the well known economic and cultural importance...

Gene identification and analysis of transcripts differentially regulated in fracture healing by EST sequencing in the domestic sheep (2006)

Hecht, Jochen, Kuhl, Heiner, Haas, Stefan A ., Bauer, Sebastian, Poustka, Albert J., Lienau, Jasmin, ...

Background The sheep is an important model animal for testing novel fracture treatments and other medical applications. Despite these medical uses and the well known economic and cultural importance...

Timing and mechanism of ancient vertebrate genome duplications – the adventure of a hypothesis (2005)

Panopoulou, Georgia, Poustka, Albert J.

Complete genome doubling has long-term consequences for the genome structure and the subsequent evolution of an organism. It has been suggested that two genome duplications occurred at the origin of...

Nodal/activin signaling establishes oral-aboral polarity in the early sea urchin embryo (2004)

Flowers,Vera Lynn, Courteau,Girard R., Poustka,Albert J., Weng,Wei, Venuti,Judith M.

Components of the Wnt signaling pathway are involved in patterning the sea urchin primary or animal-vegetal (AV) axis, but the molecular cues that pattern the secondary embryonic axis, the...

On the origin of the chordate central nervous system : expression of onecut in the sea urchin embryo (2004)

Poustka,Albert J., Kühn,Alexander, Radosavljevic,Vesna, Wellenreuther,Ruth, Lehrach,Hans, Panopoulou,Georgia

We identified a transcription factor of the onecut class in the sea urchin Strongylocentrotus purpuratus that represents an ortholog of the mammalian gene HNF6, the founding member of the onecut...

Expression of an NK2 homeodomain gene in the apical ectoderm defines a new territory in the early sea urchin embryo (2004)

Takacs,Carter M., Amore,Gabriele, Oliveri,Paola, Poustka,Albert J., Wang,Diana, Burke,Robert D., ...

We have identified an NK2 family homeodomain transcription factor, SpNK2.1, in the sea urchin Strongylocentrotus purpuratus whose transcripts are initially detected within the apical plate ectoderm...

Cloning of a novel phospholipase C-delta isoform from Pacific purple sea urchin (Strongylocentrotus purpuratus) gametes and its expression during early embryonic development (2004)

Coward,Kevin, Owen,Helen, Poustka,Albert J., Hibbitt,Olivia, Tunwell,Richard, Kubota,Hiroki, ...

Calcium (Ca2+) is a ubiquitous intracellular messenger, controlling a diverse range of cellular processes, including fertilization and development of the embryo. One of the key mechanisms involved in...

Cloning of a novel phospholipase C-delta isoform from Pacific purple sea urchin (Strongylocentrotus purpuratus) gametes and its expression during early embryonic development (2004)

Coward, Kevin, Owen, Helen, Poustka, Albert J., Hibbitt, Olivia, Tunwell, Richard, Kubota, Hiroki, ...

Calcium (Ca2+) is a ubiquitous intracellular messenger, controlling a diverse range of cellular processes, including fertilization and development of the embryo. One of the key mechanisms involved in...

Nodal/activin signaling establishes oral-aboral polarity in the early sea urchin embryo (2004)

Flowers, Vera Lynn, Courteau, Girard R., Poustka, Albert J., Weng, Wei, Venuti, Judith M.

Components of the Wnt signaling pathway are involved in patterning the sea urchin primary or animal-vegetal (AV) axis, but the molecular cues that pattern the secondary embryonic axis, the...

On the origin of the chordate central nervous system : expression of onecut in the sea urchin embryo (2004)

Poustka, Albert J., Kühn, Alexander, Radosavljevic, Vesna, Wellenreuther, Ruth, Lehrach, Hans, Panopoulou, Georgia

We identified a transcription factor of the onecut class in the sea urchin Strongylocentrotus purpuratus that represents an ortholog of the mammalian gene HNF6, the founding member of the onecut...

Expression of an NK2 homeodomain gene in the apical ectoderm defines a new territory in the early sea urchin embryo (2004)

Takacs, Carter M., Amore, Gabriele, Oliveri, Paola, Poustka, Albert J., Wang, Diana, Burke, Robert D., ...

We have identified an NK2 family homeodomain transcription factor, SpNK2.1, in the sea urchin Strongylocentrotus purpuratus whose transcripts are initially detected within the apical plate ectoderm...

Generation, annotation, evolutionary analysis, and database integration of 20,000 unique sea urchin EST clusters (2003)

Poustka,Albert J., Groth,Detlef, Hennig,Steffen, Thamm,Sabine, Cameron,Andrew, Beck,Alfred, ...

Together with the hemichordates, sea urchins represent basal groups of nonchordate invertebrate deuterostomes that occupy a key position in bilaterian evolution. Because sea urchin embryos are also...

New evidence for genome-wide duplications at the origin of vertebrates using an amphioxus gene set and completed animal genomes (2003)

Panopoulou,Georgia, Hennig,Steffen, Groth,Detlef, Krause,Antje, Poustka,Albert J., Herwig,Ralf, ...

The 2R hypothesis predicting two genome duplications at the origin of vertebrates is highly controversial. Studies published so far include limited sequence data from organisms close to the...

Generation, annotation, evolutionary analysis, and database integration of 20,000 unique sea urchin EST clusters (2003)

Poustka, Albert J., Groth, Detlef, Hennig, Steffen, Thamm, Sabine, Cameron, Andrew, Beck, Alfred, ...

Together with the hemichordates, sea urchins represent basal groups of nonchordate invertebrate deuterostomes that occupy a key position in bilaterian evolution. Because sea urchin embryos are also...

New evidence for genome-wide duplications at the origin of vertebrates using an amphioxus gene set and completed animal genomes (2003)

Panopoulou, Georgia, Hennig, Steffen, Groth, Detlef, Krause, Antje, Poustka, Albert J., Herwig, Ralf, ...

The 2R hypothesis predicting two genome duplications at the origin of vertebrates is highly controversial. Studies published so far include limited sequence data from organisms close to the...

New Evidence for Genome-Wide Duplications at the Origin of Vertebrates Using an Amphioxus Gene Set and Completed Animal Genomes (2003)

Panopoulou, Georgia, Hennig, Steffen, Groth, Detlef, Krause, Antje, Poustka, Albert J., Herwig, Ralf, ...

The 2R hypothesis predicting two genome duplications at the origin of vertebrates is highly controversial. Studies published so far include limited sequence data from organisms close to the...

Generation, Annotation, Evolutionary Analysis, and Database Integration of 20,000 Unique Sea Urchin EST Clusters (2003)

Poustka, Albert J., Groth, Detlef, Hennig, Steffen, Thamm, Sabine, Cameron, Andrew, Beck, Alfred, ...

Together with the hemichordates, sea urchins represent basal groups of nonchordate invertebrate deuterostomes that occupy a key position in bilaterian evolution. Because sea urchin embryos are also...

brachyury Target Genes in the Early Sea Urchin Embryo Isolated by Differential Macroarray Screening (2002)

Rast,Jonathan P., Cameron,R. Andrew, Poustka,Albert J., Davidson,Eric H.

Brachyury is a transcription factor that functions in gastrulation and endoderm development throughout the Bilateria. Here, we identify genes that are expressed downstream of brachyury during...

Brachyury Target Genes in the Early Sea Urchin Embryo Isolated by Differential Macroarray Screening (2002)

Rast,Jonathan P., Cameron,R. Andrew, Poustka,Albert J., Davidson,Eric H.

Brachyury is a transcription factor that functions in gastrulation and endoderm development throughout the Bilateria. Here, we identify genes that are expressed downstream of brachyury during...

brachyury Target Genes in the Early Sea Urchin Embryo Isolated by Differential Macroarray Screening (2002)

Rast, Jonathan P., Cameron, R. Andrew, Poustka, Albert J., Davidson, Eric H.

Brachyury is a transcription factor that functions in gastrulation and endoderm development throughout the Bilateria. Here, we identify genes that are expressed downstream of brachyury during...

Brachyury Target Genes in the Early Sea Urchin Embryo Isolated by Differential Macroarray Screening (2002)

Rast, Jonathan P., Cameron, R. Andrew, Poustka, Albert J., Davidson, Eric H.

Brachyury is a transcription factor that functions in gastrulation and endoderm development throughout the Bilateria. Here, we identify genes that are expressed downstream of brachyury during...

A sea urchin genome project: Sequence scan, virtual map, and additional resources (2000)

Cameron, R. Andrew, Mahairas, Gregory, Rast, Jonathan P., Martinez, Pedro, Biondi, Ted R., Swartzell, Steven, ...

Results of a first-stage Sea Urchin Genome Project are summarized here. The species chosen was Strongylocentrotus purpuratus, a research model of major importance in developmental and molecular...

A sea urchin genome project: Sequence scan, virtual map, and additional resources

Cameron, R. Andrew, Mahairas, Gregory, Rast, Jonathan P., Martinez, Pedro, Biondi, Ted R., Swartzell, Steven, ...

Results of a first-stage Sea Urchin Genome Project are summarized here. The species chosen was Strongylocentrotus purpuratus, a research model of major importance in developmental and molecular...

Large-Scale Clustering of cDNA-Fingerprinting Data

Herwig, Ralf, Poustka, Albert J., Müller, Christine, Bull, Christof, Lehrach, Hans, O'Brien, John

Clustering is one of the main mathematical challenges in large-scale gene expression analysis. We describe a clustering procedure based on a sequential k-means algorithm with additional refinements...

New Evidence for Genome-Wide Duplications at the Origin of Vertebrates Using an Amphioxus Gene Set and Completed Animal Genomes

Panopoulou, Georgia, Hennig, Steffen, Groth, Detlef, Krause, Antje, Poustka, Albert J., Herwig, Ralf, ...

The 2R hypothesis predicting two genome duplications at the origin of vertebrates is highly controversial. Studies published so far include limited sequence data from organisms close to the...

Generation, Annotation, Evolutionary Analysis, and Database Integration of 20,000 Unique Sea Urchin EST Clusters

Poustka, Albert J., Groth, Detlef, Hennig, Steffen, Thamm, Sabine, Cameron, Andrew, Beck, Alfred, ...

Together with the hemichordates, sea urchins represent basal groups of nonchordate invertebrate deuterostomes that occupy a key position in bilaterian evolution. Because sea urchin embryos are also...

A sea urchin genome project: Sequence scan, virtual map, and additional resources

Cameron, R. Andrew, Mahairas, Gregory, Rast, Jonathan P., Martinez, Pedro, Biondi, Ted R., Swartzell, Steven, ...

Results of a first-stage Sea Urchin Genome Project are summarized here. The species chosen was Strongylocentrotus purpuratus, a research model of major importance in developmental and molecular...

Large-Scale Clustering of cDNA-Fingerprinting Data

Herwig, Ralf, Poustka, Albert J., Müller, Christine, Bull, Christof, Lehrach, Hans, O'Brien, John

Clustering is one of the main mathematical challenges in large-scale gene expression analysis. We describe a clustering procedure based on a sequential k-means algorithm with additional refinements...

New Evidence for Genome-Wide Duplications at the Origin of Vertebrates Using an Amphioxus Gene Set and Completed Animal Genomes

Panopoulou, Georgia, Hennig, Steffen, Groth, Detlef, Krause, Antje, Poustka, Albert J., Herwig, Ralf, ...

The 2R hypothesis predicting two genome duplications at the origin of vertebrates is highly controversial. Studies published so far include limited sequence data from organisms close to the...

Generation, Annotation, Evolutionary Analysis, and Database Integration of 20,000 Unique Sea Urchin EST Clusters

Poustka, Albert J., Groth, Detlef, Hennig, Steffen, Thamm, Sabine, Cameron, Andrew, Beck, Alfred, ...

Together with the hemichordates, sea urchins represent basal groups of nonchordate invertebrate deuterostomes that occupy a key position in bilaterian evolution. Because sea urchin embryos are also...

A global view of gene expression in lithium and zinc treated sea urchin embryos: new components of gene regulatory networks

Poustka, Albert J, Kühn, Alexander, Groth, Detlef, Weise, Vesna, Yaguchi, Shunsuke, Burke, Robert D, ...

Novel territory-specific markers from the sea urchin Strongylocentrotus purpuratus have been identified using screens for genes that are differentially expressed in lithium-treated embryos, which...

Evolution of a Core Gene Network for Skeletogenesis in Chordates

Hecht, Jochen, Stricker, Sigmar, Wiecha, Ulrike, Stiege, Asita, Panopoulou, Georgia, Podsiadlowski, Lars, ...

The skeleton is one of the most important features for the reconstruction of vertebrate phylogeny but few data are available to understand its molecular origin. In mammals the Runt genes are central...

Ca2+ Signaling Occurs via Second Messenger Release from Intraorganelle Synthesis Sites

Davis, Lianne C., Morgan, Anthony J., Ruas, Margarida, Wong, Julian L., Graeff, Richard M., Poustka, Albert J., ...

Cyclic ADP-ribose is an important Ca2+-mobilizing cytosolic messenger synthesized from β-NAD+ by ADP-ribosyl cyclases (ARCs). However, the focus upon ectocellular mammalian ARCs (CD38 and CD157) has...

Early vertebrate whole genome duplications were predated by a period of intense genome rearrangement

Hufton, Andrew L., Groth, Detlef, Vingron, Martin, Lehrach, Hans, Poustka, Albert J., Panopoulou, Georgia

Researchers, supported by data from polyploid plants, have suggested that whole genome duplication (WGD) may induce genomic instability and rearrangement, an idea which could have important...