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GO Term History: Displaying 42 audit records for all terms for the date 2006-08-15

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Introduction

This page displays the differences recorded in the full Gene Ontology OBO v1.2 file as audited by the UniProt-GOA database during its daily update cycle.
If there is any delay in uploading the current OBO file, the changes displayed and the date recorded for these changes may not correspond to when the changes to the OBO file were committed.

All changes

Timestamp GO ID GO Term Name Action Category Detail
2006-08-15 GO:0007399 nervous system development Updated DEFINITION The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
2006-08-15 GO:0006694 steroid biosynthetic process Updated DEFINITION The chemical reactions and pathways resulting in the formation of steroids, compounds with a 1,2,cyclopentanoperhydrophenanthrene nucleus; includes de novo formation and steroid interconversion by modification.
2006-08-15 GO:0001843 neural tube closure Updated DEFINITION The last step in the formation of the neural tube, where the paired neural folds are brought together and fuse at the dorsal midline.
2006-08-15 GO:0014020 primary neural tube formation Updated DEFINITION The formation of the neural tube from an epithelial cell sheet (the neuroepithelium or neural plate). In primary neurulation, the cells surrounding the neural plate direct the neural plate cells to proliferate, invaginate, and pich off from the surface to form a hollow epithelial tube. Primary neurulation is the typical mechanism of formation of the anterior neural tube.
2006-08-15 GO:0032157 prospore contractile ring Added DEFINITION A contractile ring, i.e. a cytoskeletal structure composed of actin filaments and myosin, that forms beneath the plasma membrane of the prospore envelope in meiotic cells in preparation for completing cytokinesis.
2006-08-15 GO:0032165 prospore septin filament array Added DEFINITION Arrays of septin filaments, or bars, found in a series of filamentous structures; observed in the prospore membrane during spore formation.
2006-08-15 GO:0032169 prospore septin ring Added DEFINITION A tight ring-shaped structure that forms in the division plane at the site of cytokinesis in a prospore; composed of septins as well as septin-associated proteins.
2006-08-15 GO:0032170 pseudohyphal septin ring Added DEFINITION A tight ring-shaped structure that forms in the division plane at the junction between the mother cell and a pseudohyphal projection; composed of septins as well as septin-associated proteins.
2006-08-15 GO:0014021 secondary neural tube formation Updated DEFINITION The formation of the neural tube by coalescence of mesenchymal cells followed by their conversion to epithelial cells to form a solid cord that subsequently hollows out (cavitates) to create a hollow tube. Secondary neurulation is the typical mechanism of formation of the neural tube posterior to the posterior neuropore in mammals.
2006-08-15 GO:0032158 septin band Added DEFINITION A diffuse ring composed of a series of septin bars that run parallel to the long axis of the cell. This type of septin structure has been observed in a number of locations associated with polarized grown and/or deposition of new membrane, but not with with cytokinesis, such as at the shmoo (mating projection) neck, at the junction between the mother cell and the germ tube (hypha) of a fungal cell growing filamentously.
2006-08-15 GO:0032159 septin cap Added DEFINITION A faint structure formed of septins found at the leading edge of growth in germ tubes and hyphae in fungal cells growing filamentiously. This cap of septins colocalizes with a region of the plasma membrane that is rich in ergosterol.
2006-08-15 GO:0032173 septin collar Added DEFINITION A tubular, hourglass-shaped structure composed of highly ordered arrays of septin filaments; in budding yeast cells, the septin collar forms from the initial septin ring by expanding into the daughter cell.
2006-08-15 GO:0031105 septin complex Updated DEFINITION Any of several heterooligomeric complexes containing multiple septins.
2006-08-15 GO:0032174 cellular bud neck septin collar Added DEFINITION A tubular structure with flared ends, shaped like an hourglass and composed of highly ordered arrays of septin filaments, that forms at the bud neck of a dividing cell. In S. cerevisiae, this structure is located at the bud neck throughout most of the cell cycle and the septins are fixed within the structure, not exchanging with soluble septins. This septin structure acts as a scaffold for other proteins that function at the bud neck.
2006-08-15 GO:0000144 cellular bud neck septin ring Updated DEFINITION A ring-shaped structure that forms at the site of cytokinesis; composed of members of the conserved family of filament forming proteins called septins as well as septin-associated proteins. In S. cerevisiae, this structure forms at the time of bud emergence and the septins show a high rate of exchange.
2006-08-15 GO:0000399 cellular bud neck septin structure Added DEFINITION Any of a series of septin structures that are localized in the bud neck of a budding fungal cell during the cell cycle.
2006-08-15 GO:0032177 cellular bud neck split septin rings Added DEFINITION Two separate septin rings that are formed from the septin collar at the time of cytokinesis in cells that divide by budding. These two rings are thought to delineate a special compartment in which factors involved in cytokinesis are concentrated.
2006-08-15 GO:0005826 actomyosin contractile ring Updated DEFINITION A cytoskeletal structure composed of actin filaments and myosin that forms beneath the plasma membrane of many cells, including animal cells and yeast cells, in a plane perpendicular to the axis of the spindle, i.e. the cell division plane. Ring contraction is associated with centripetal growth of the membrane that divides the cytoplasm of the two daughter cells. In animal cells, the contractile ring is located inside the plasma membrane at the location of the cleavage furrow. In budding fungal cells, e.g. mitotic S. cerevisiae cells, the contractile ring forms beneath the plasma membrane at the mother-bud neck before mitosis.
2006-08-15 GO:0032179 germ tube Added DEFINITION The slender tubular outgrowth first produced by most spores in germination.
2006-08-15 GO:0032171 germ tube septin cap Added DEFINITION A faint structure formed of septins found at the leading edge of growth in germ tubes of fungal cells growing filamentiously. This cap of septins colocalizes with a region of the plasma membrane that is rich in ergosterol.
2006-08-15 GO:0032172 germ tube septin ring Added DEFINITION A tight ring-shaped structure that forms in the division plane within the germ tube of filamentous fungi at sites where a septum will form; composed of septins as well as septin-associated proteins.
2006-08-15 GO:0032163 hyphal septin band Added DEFINITION A septin band, i.e. a diffuse ring composed of a series of septin bars running parallel to the long axis of the cell, located at the junction between the mother cell and the germ tube (hypha) of a fungal cell growing filamentously.
2006-08-15 GO:0032164 hyphal septin cap Added DEFINITION A faint structure formed of septins found at the leading edge of growth in hyphae of fungal cells growing filamentiously. This cap of septins colocalizes with a region of the plasma membrane that is rich in ergosterol.
2006-08-15 GO:0032168 hyphal septin ring Added DEFINITION A tight ring-shaped structure that forms in the division plane within hyphae of filamentous fungi at sites where a septum will form; composed of septins as well as septin-associated proteins.
2006-08-15 GO:0005770 late endosome Updated DEFINITION A prelysosomal endocytic organelle differentiated from early endosomes by lower lumenal pH and different protein composition. Late endosomes are more spherical than early endosomes and are mostly juxtanuclear, being concentrated near the microtubule organizing center.
2006-08-15 GO:0032162 mating projection septin band Added DEFINITION A septin band, i.e. a diffuse ring composed of a series of septin bars running parallel to the long axis of the cell, located at the neck of a shmoo (mating projection).
2006-08-15 GO:0032175 mating projection septin ring Added DEFINITION A septin ring, i.e. a ring-shaped structure composed of septins and septin-associated proteins, located at the neck of a shmoo (mating projection). The septin ring in the neck of a shmoo may act as a barrier to localize mating factors in the shmoo tip.
2006-08-15 GO:0032178 medial membrane band Added DEFINITION A sterol rich region of the plasma membrane which forms at the cell surface overlying the contractile ring and spreads into the invaginating plasma membrane surrounding the septum.
2006-08-15 GO:0032130 medial membrane band assembly Added DEFINITION The formation of sterol rich region of the plasma membrane at the cell surface overlying the contractile ring.
2006-08-15 GO:0032152 meiotic septin complex Added DEFINITION A heterooligomeric septin complex that acts during meiotic cell division.
2006-08-15 GO:0014005 microglia development Updated DEFINITION The process aimed at the progression of a microglial cell over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell.
2006-08-15 GO:0032151 mitotic septin complex Added DEFINITION A heterooligomeric septin complex that acts during mitotic cell division.
2006-08-15 GO:0032156 septin cytoskeleton Added DEFINITION The part of the cytoskeleton (the internal framework of a cell) composed of septins and associated proteins. Includes septin cytoskeleton-associated complexes.
2006-08-15 GO:0032160 septin filament array Added DEFINITION Arrays of septin filaments, or bars, found in a series of filamentous structures. Such structures have been observed in the prospore membrane during spore formation in S. cerevisiae and in the chlamydospore membrane during chlamydospore formation in C. albicans.
2006-08-15 GO:0032166 chlamydospore septin filament array Added DEFINITION Arrays of septin filaments, or bars, found in a series of filamentous structures. observed in the chlamydospore membrane during chlamydospore formation.
2006-08-15 GO:0032161 cleavage apparatus septin structure Added DEFINITION Any of a series of structures composed of septins and septin-associated proteins localized to the cleavage plane which are involved in cytokinesis.
2006-08-15 GO:0032154 cleavage furrow Updated DEFINITION In animal cells, the first sign of cleavage, or cytokinesis, is the appearance of a shallow groove in the cell surface near the old metaphase plate. A contractile ring containing actin and myosin, is located just inside the plasma membrane at the location of the furrow. Ring contraction is associated with centripetal growth of the membrane that deepens the cleavage furrow and divides the cytoplasm of the two daughter cells. While the term "cleavage furrow" was initially associated with animal cells, such a structure occurs in many other types of cells, including unicellular protists.
2006-08-15 GO:0000142 cellular bud neck contractile ring Updated DEFINITION A contractile ring, i.e. a cytoskeletal structure composed of actin filaments and myosin, that forms beneath the plasma membrane at the mother-bud neck in mitotic cells that divide by budding in preparation for completing cytokinesis.
2006-08-15 GO:0032167 septin patch Added DEFINITION An amorphous-appearing accumulation of septin proteins at the future site of cytokinesis.
2006-08-15 GO:0005940 septin ring Updated DEFINITION A tight ring-shaped structure that forms in the division plane at the site of cytokinesis; composed of members of the conserved family of filament-forming proteins called septins as well as septin-associated proteins. This type of septin structure is observed at the bud neck of budding fungal cells, at the site of cell division in animal cells, at the junction between the mother cell and a pseudohyphal projection, and also within hyphae of filamentous fungi at sites where a septum will form.
2006-08-15 GO:0032176 split septin rings Added DEFINITION A pair of rings that flank the site of cell division, formed by splitting of the septin ring (or collar) prior to cytokinesis; this double ring structure is thought to trap proteins needed for cytokinesis or the formation of the new membrane or cell wall between the two septin rings. Split septin rings are known to occur in budding yeast cells and probably occur in other cell types as well.
2006-08-15 GO:0001840 neural plate development Updated DEFINITION The process whose specific outcome is the progression of the neural plate over time, from its formation to the mature structure. The neural plate is a flat, thickened layer of ectodermal cells. The underlying dorsal mesoderm signals the ectodermal cells above it to elongate into columnar neural plate cells. The neural plate subsequently develops into the neural tube, which gives rise to the central nervous system.

Definition/synonyms

Timestamp GO ID GO Term Name Action Category Detail
2006-08-15 GO:0007399 nervous system development Updated DEFINITION The process whose specific outcome is the progression of nervous tissue over time, from its formation to its mature state.
2006-08-15 GO:0006694 steroid biosynthetic process Updated DEFINITION The chemical reactions and pathways resulting in the formation of steroids, compounds with a 1,2,cyclopentanoperhydrophenanthrene nucleus; includes de novo formation and steroid interconversion by modification.
2006-08-15 GO:0001843 neural tube closure Updated DEFINITION The last step in the formation of the neural tube, where the paired neural folds are brought together and fuse at the dorsal midline.
2006-08-15 GO:0014020 primary neural tube formation Updated DEFINITION The formation of the neural tube from an epithelial cell sheet (the neuroepithelium or neural plate). In primary neurulation, the cells surrounding the neural plate direct the neural plate cells to proliferate, invaginate, and pich off from the surface to form a hollow epithelial tube. Primary neurulation is the typical mechanism of formation of the anterior neural tube.
2006-08-15 GO:0032157 prospore contractile ring Added DEFINITION A contractile ring, i.e. a cytoskeletal structure composed of actin filaments and myosin, that forms beneath the plasma membrane of the prospore envelope in meiotic cells in preparation for completing cytokinesis.
2006-08-15 GO:0032165 prospore septin filament array Added DEFINITION Arrays of septin filaments, or bars, found in a series of filamentous structures; observed in the prospore membrane during spore formation.
2006-08-15 GO:0032169 prospore septin ring Added DEFINITION A tight ring-shaped structure that forms in the division plane at the site of cytokinesis in a prospore; composed of septins as well as septin-associated proteins.
2006-08-15 GO:0032170 pseudohyphal septin ring Added DEFINITION A tight ring-shaped structure that forms in the division plane at the junction between the mother cell and a pseudohyphal projection; composed of septins as well as septin-associated proteins.
2006-08-15 GO:0014021 secondary neural tube formation Updated DEFINITION The formation of the neural tube by coalescence of mesenchymal cells followed by their conversion to epithelial cells to form a solid cord that subsequently hollows out (cavitates) to create a hollow tube. Secondary neurulation is the typical mechanism of formation of the neural tube posterior to the posterior neuropore in mammals.
2006-08-15 GO:0032158 septin band Added DEFINITION A diffuse ring composed of a series of septin bars that run parallel to the long axis of the cell. This type of septin structure has been observed in a number of locations associated with polarized grown and/or deposition of new membrane, but not with with cytokinesis, such as at the shmoo (mating projection) neck, at the junction between the mother cell and the germ tube (hypha) of a fungal cell growing filamentously.
2006-08-15 GO:0032159 septin cap Added DEFINITION A faint structure formed of septins found at the leading edge of growth in germ tubes and hyphae in fungal cells growing filamentiously. This cap of septins colocalizes with a region of the plasma membrane that is rich in ergosterol.
2006-08-15 GO:0032173 septin collar Added DEFINITION A tubular, hourglass-shaped structure composed of highly ordered arrays of septin filaments; in budding yeast cells, the septin collar forms from the initial septin ring by expanding into the daughter cell.
2006-08-15 GO:0031105 septin complex Updated DEFINITION Any of several heterooligomeric complexes containing multiple septins.
2006-08-15 GO:0032174 cellular bud neck septin collar Added DEFINITION A tubular structure with flared ends, shaped like an hourglass and composed of highly ordered arrays of septin filaments, that forms at the bud neck of a dividing cell. In S. cerevisiae, this structure is located at the bud neck throughout most of the cell cycle and the septins are fixed within the structure, not exchanging with soluble septins. This septin structure acts as a scaffold for other proteins that function at the bud neck.
2006-08-15 GO:0000144 cellular bud neck septin ring Updated DEFINITION A ring-shaped structure that forms at the site of cytokinesis; composed of members of the conserved family of filament forming proteins called septins as well as septin-associated proteins. In S. cerevisiae, this structure forms at the time of bud emergence and the septins show a high rate of exchange.
2006-08-15 GO:0000399 cellular bud neck septin structure Added DEFINITION Any of a series of septin structures that are localized in the bud neck of a budding fungal cell during the cell cycle.
2006-08-15 GO:0032177 cellular bud neck split septin rings Added DEFINITION Two separate septin rings that are formed from the septin collar at the time of cytokinesis in cells that divide by budding. These two rings are thought to delineate a special compartment in which factors involved in cytokinesis are concentrated.
2006-08-15 GO:0005826 actomyosin contractile ring Updated DEFINITION A cytoskeletal structure composed of actin filaments and myosin that forms beneath the plasma membrane of many cells, including animal cells and yeast cells, in a plane perpendicular to the axis of the spindle, i.e. the cell division plane. Ring contraction is associated with centripetal growth of the membrane that divides the cytoplasm of the two daughter cells. In animal cells, the contractile ring is located inside the plasma membrane at the location of the cleavage furrow. In budding fungal cells, e.g. mitotic S. cerevisiae cells, the contractile ring forms beneath the plasma membrane at the mother-bud neck before mitosis.
2006-08-15 GO:0032179 germ tube Added DEFINITION The slender tubular outgrowth first produced by most spores in germination.
2006-08-15 GO:0032171 germ tube septin cap Added DEFINITION A faint structure formed of septins found at the leading edge of growth in germ tubes of fungal cells growing filamentiously. This cap of septins colocalizes with a region of the plasma membrane that is rich in ergosterol.
2006-08-15 GO:0032172 germ tube septin ring Added DEFINITION A tight ring-shaped structure that forms in the division plane within the germ tube of filamentous fungi at sites where a septum will form; composed of septins as well as septin-associated proteins.
2006-08-15 GO:0032163 hyphal septin band Added DEFINITION A septin band, i.e. a diffuse ring composed of a series of septin bars running parallel to the long axis of the cell, located at the junction between the mother cell and the germ tube (hypha) of a fungal cell growing filamentously.
2006-08-15 GO:0032164 hyphal septin cap Added DEFINITION A faint structure formed of septins found at the leading edge of growth in hyphae of fungal cells growing filamentiously. This cap of septins colocalizes with a region of the plasma membrane that is rich in ergosterol.
2006-08-15 GO:0032168 hyphal septin ring Added DEFINITION A tight ring-shaped structure that forms in the division plane within hyphae of filamentous fungi at sites where a septum will form; composed of septins as well as septin-associated proteins.
2006-08-15 GO:0005770 late endosome Updated DEFINITION A prelysosomal endocytic organelle differentiated from early endosomes by lower lumenal pH and different protein composition. Late endosomes are more spherical than early endosomes and are mostly juxtanuclear, being concentrated near the microtubule organizing center.
2006-08-15 GO:0032162 mating projection septin band Added DEFINITION A septin band, i.e. a diffuse ring composed of a series of septin bars running parallel to the long axis of the cell, located at the neck of a shmoo (mating projection).
2006-08-15 GO:0032175 mating projection septin ring Added DEFINITION A septin ring, i.e. a ring-shaped structure composed of septins and septin-associated proteins, located at the neck of a shmoo (mating projection). The septin ring in the neck of a shmoo may act as a barrier to localize mating factors in the shmoo tip.
2006-08-15 GO:0032178 medial membrane band Added DEFINITION A sterol rich region of the plasma membrane which forms at the cell surface overlying the contractile ring and spreads into the invaginating plasma membrane surrounding the septum.
2006-08-15 GO:0032130 medial membrane band assembly Added DEFINITION The formation of sterol rich region of the plasma membrane at the cell surface overlying the contractile ring.
2006-08-15 GO:0032152 meiotic septin complex Added DEFINITION A heterooligomeric septin complex that acts during meiotic cell division.
2006-08-15 GO:0014005 microglia development Updated DEFINITION The process aimed at the progression of a microglial cell over time, from initial commitment of the cell to a specific fate, to the fully functional differentiated cell.
2006-08-15 GO:0032151 mitotic septin complex Added DEFINITION A heterooligomeric septin complex that acts during mitotic cell division.
2006-08-15 GO:0032156 septin cytoskeleton Added DEFINITION The part of the cytoskeleton (the internal framework of a cell) composed of septins and associated proteins. Includes septin cytoskeleton-associated complexes.
2006-08-15 GO:0032160 septin filament array Added DEFINITION Arrays of septin filaments, or bars, found in a series of filamentous structures. Such structures have been observed in the prospore membrane during spore formation in S. cerevisiae and in the chlamydospore membrane during chlamydospore formation in C. albicans.
2006-08-15 GO:0032166 chlamydospore septin filament array Added DEFINITION Arrays of septin filaments, or bars, found in a series of filamentous structures. observed in the chlamydospore membrane during chlamydospore formation.
2006-08-15 GO:0032161 cleavage apparatus septin structure Added DEFINITION Any of a series of structures composed of septins and septin-associated proteins localized to the cleavage plane which are involved in cytokinesis.
2006-08-15 GO:0032154 cleavage furrow Updated DEFINITION In animal cells, the first sign of cleavage, or cytokinesis, is the appearance of a shallow groove in the cell surface near the old metaphase plate. A contractile ring containing actin and myosin, is located just inside the plasma membrane at the location of the furrow. Ring contraction is associated with centripetal growth of the membrane that deepens the cleavage furrow and divides the cytoplasm of the two daughter cells. While the term "cleavage furrow" was initially associated with animal cells, such a structure occurs in many other types of cells, including unicellular protists.
2006-08-15 GO:0000142 cellular bud neck contractile ring Updated DEFINITION A contractile ring, i.e. a cytoskeletal structure composed of actin filaments and myosin, that forms beneath the plasma membrane at the mother-bud neck in mitotic cells that divide by budding in preparation for completing cytokinesis.
2006-08-15 GO:0032167 septin patch Added DEFINITION An amorphous-appearing accumulation of septin proteins at the future site of cytokinesis.
2006-08-15 GO:0005940 septin ring Updated DEFINITION A tight ring-shaped structure that forms in the division plane at the site of cytokinesis; composed of members of the conserved family of filament-forming proteins called septins as well as septin-associated proteins. This type of septin structure is observed at the bud neck of budding fungal cells, at the site of cell division in animal cells, at the junction between the mother cell and a pseudohyphal projection, and also within hyphae of filamentous fungi at sites where a septum will form.
2006-08-15 GO:0032176 split septin rings Added DEFINITION A pair of rings that flank the site of cell division, formed by splitting of the septin ring (or collar) prior to cytokinesis; this double ring structure is thought to trap proteins needed for cytokinesis or the formation of the new membrane or cell wall between the two septin rings. Split septin rings are known to occur in budding yeast cells and probably occur in other cell types as well.
2006-08-15 GO:0001840 neural plate development Updated DEFINITION The process whose specific outcome is the progression of the neural plate over time, from its formation to the mature structure. The neural plate is a flat, thickened layer of ectodermal cells. The underlying dorsal mesoderm signals the ectodermal cells above it to elongate into columnar neural plate cells. The neural plate subsequently develops into the neural tube, which gives rise to the central nervous system.
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