Terminology Service < Semantic Lookup Platform

All terms in GO

Label	Id	Description
sterol desaturase activity	GO_0070704	[Catalysis of the introduction of a double bond into a sterol molecule.]
oxidoreductase activity, acting on paired donors, with oxidation of a pair of donors resulting in the reduction of molecular oxygen to two molecules of water	GO_0016717	[Catalysis of an oxidation-reduction (redox) reaction in which hydrogen or electrons are transferred from each of two donors, and molecular oxygen is reduced to two molecules of water.]
C-8 sterol isomerase activity	GO_0000247	[Catalysis of the reaction which results in unsaturation at C-7 in the B ring of sterols.]
C-5 sterol desaturase activity	GO_0000248	[Catalysis of the reaction: 5,7,24(28)-ergostatrienol + O2 + NADPH = 5,7,22,24(28)-ergostatetraenol + 2 H2O + NADP+.]
delta24(24-1) sterol reductase activity	GO_0000246	[Catalysis of the reaction: ergosterol + NADP(+) = ergosta-5,7,22,24(24(1))-tetraen-3beta-ol + H(+) + NADPH.]
commitment complex	GO_0000243	[A spliceosomal complex that is formed by association of the U1 snRNP with the 5' splice site of an unspliced intron in an RNA transcript.]
U2-type spliceosomal complex	GO_0005684	[Any spliceosomal complex that forms during the splicing of a messenger RNA primary transcript to excise an intron that has canonical consensus sequences near the 5' and 3' ends.]
U1 snRNP	GO_0005685	[A ribonucleoprotein complex that contains small nuclear RNA U1.]
spliceosomal tri-snRNP complex assembly	GO_0000244	[The formation of a tri-snRNP complex containing U4 and U6 (or U4atac and U6atac) snRNAs and U5 snRNAs and associated proteins. This includes reannealing of U4 and U6 (or U4atac and U6atac) snRNAs released from previous rounds of splicing to reform the U4/U6 snRNP (or U4atac/U6atac snRNP) as well as the subsequent association of the U5 snRNP with the U4/U6 snRNP (or U4atac/U6atac snRNP) to form a tri-snRNP that is ready to reassemble into another spliceosome complex.]
diakinesis	GO_0000241	[The cell cycle phase which follows diplotene during prophase I of meiosis, the separation of homologous chromosomes is complete and crossing over has occurred.]
meiosis I cell cycle phase	GO_0098764	[A meiotic cell cycle phase prior to a during which some part of meiosis I nuclear division or the proceeding cytokinesis occurs.]
meiotic prophase I	GO_0007128	[The cell cycle phase which is the first stage of meiosis I and during which chromosomes condense and the two daughter centrioles and their asters migrate toward the poles of the cell.]
diplotene	GO_0000240	[The cell cycle phase which follows pachytene during prophase I of meiosis, during which the homologous chromosomes begin to separate and the synaptonemal complex dissolves.]
zygotene	GO_0000238	[The cell cycle phase which follows leptotene during prophase I of meiosis, and during which each chromosome pairs with its homolog; the two become aligned and crossing over may occur.]
pachytene	GO_0000239	[The cell cycle phase which follows zygotene during prophase I of meiosis, and during which crossing over occurs between a chromatid in one partner and another chromatid in the homologous chromosome.]
mitotic prometaphase	GO_0000236	[The cell cycle phase in higher eukaryotes which follows mitotic prophase and during which the nuclear envelope is disrupted and breaks into membrane vesicles, and the spindle microtubules enter the nuclear region. Kinetochores mature on each centromere and attach to some of the spindle microtubules. Kinetochore microtubules begin the process of aligning chromosomes in one plane halfway between the poles.]
mitotic cell cycle phase	GO_0098763	[One of the distinct periods or stages into which the mitotic cell cycle is divided. Each phase is characterized by the occurrence of specific biochemical and morphological events.]
leptotene	GO_0000237	[The cell cycle phase which is the first stage of prophase I in meiosis, and during which the chromosomes first become visible.]
phosphoethanolamine N-methyltransferase activity	GO_0000234	[Catalysis of the reaction: S-adenosyl-L-methionine + ethanolamine phosphate = S-adenosyl-L-homocysteine + N-methylethanolamine phosphate.]
cytoplasmic microtubule	GO_0005881	[Any microtubule in the cytoplasm of a cell.]