Serine/threonine-protein kinase chk1; Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. Binds to and phosphorylates CDC25. This leads to negative regulation of CDC25 and prevents mitotic entry.

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

Serine/threonine-protein kinase chk1; Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. Binds to and phosphorylates CDC25. This leads to negative regulation of CDC25 and prevents mitotic entry.

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

Serine/threonine-protein kinase chk1; Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. Binds to and phosphorylates CDC25. This leads to negative regulation of CDC25 and prevents mitotic entry.

Cullin-4; Required, indirectly, for activation of ribonucleotide reductase through the degradation of the protein spd1, thereby supplying deoxyribonucleotides for DNA replication and repair. Also has a role as a scaffold for assembling ubiquitin ligases. Component of the rik1-associated E3 ubiquitin ligase complex that shows ubiquitin ligase activity and is required for histone H3K9 methylation. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting swi6/HP1 to methylated histones which leads to transcriptional silencing within centromeric heterochroma [...]

Serine/threonine-protein kinase chk1; Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. Binds to and phosphorylates CDC25. This leads to negative regulation of CDC25 and prevents mitotic entry.

DNA topoisomerase 1; Releases the supercoiling and torsional tension of DNA introduced during the DNA replication and transcription by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA-(3'-phosphotyrosyl)- enzyme intermediate and the expulsion of a 5'-OH DNA strand. TThe free DNA strand then rotates around the intact phosphodiester bond on the opposing strand, thus rem [...]

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

Serine/threonine-protein kinase chk1; Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. Binds to and phosphorylates CDC25. This leads to negative regulation of CDC25 and prevents mitotic entry.

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

Cullin-4; Required, indirectly, for activation of ribonucleotide reductase through the degradation of the protein spd1, thereby supplying deoxyribonucleotides for DNA replication and repair. Also has a role as a scaffold for assembling ubiquitin ligases. Component of the rik1-associated E3 ubiquitin ligase complex that shows ubiquitin ligase activity and is required for histone H3K9 methylation. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting swi6/HP1 to methylated histones which leads to transcriptional silencing within centromeric heterochroma [...]

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

Ubiquitin-like protein 1; Belongs to the ubiquitin family.

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

RING-box protein pip1; Component of E3 ubiquitin ligase SCF complexes, which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. Seems to recruit the E2 ubiquitination enzyme, like UBC3/CDC34, to the complex and brings it into close proximity to the substrate. Component of the rik1-associated E3 ubiquitin ligase complex that shows ubiquitin ligase activity and is required for histone H3K9 methylation. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting swi6/HP1 to methylated histones which leads to transcriptional s [...]

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

NEDD8-activating enzyme E1 catalytic subunit; Catalytic subunit of the dimeric uba3-ula1 E1 enzyme. E1 activates NEDD8/ubl1 by first adenylating its C-terminal glycine residue with ATP, thereafter linking this residue to the side chain of the catalytic cysteine, yielding a NEDD8-uba3 thioester and free AMP. E1 finally transfers NEDD8 to the catalytic cysteine of ubc12 (By similarity).

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

NEDD8-conjugating enzyme ubc12; Accepts the ubiquitin-like protein NEDD8/RUB1 from the UBA3- ULA1 E1 complex and catalyzes its covalent attachment to other proteins; Belongs to the ubiquitin-conjugating enzyme family. UBC12 subfamily.

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

Serine/threonine-protein kinase chk1; Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. Binds to and phosphorylates CDC25. This leads to negative regulation of CDC25 and prevents mitotic entry.

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

Cullin-4; Required, indirectly, for activation of ribonucleotide reductase through the degradation of the protein spd1, thereby supplying deoxyribonucleotides for DNA replication and repair. Also has a role as a scaffold for assembling ubiquitin ligases. Component of the rik1-associated E3 ubiquitin ligase complex that shows ubiquitin ligase activity and is required for histone H3K9 methylation. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting swi6/HP1 to methylated histones which leads to transcriptional silencing within centromeric heterochroma [...]

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

Ubiquitin-like protein 1; Belongs to the ubiquitin family.

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

RING-box protein pip1; Component of E3 ubiquitin ligase SCF complexes, which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. Seems to recruit the E2 ubiquitination enzyme, like UBC3/CDC34, to the complex and brings it into close proximity to the substrate. Component of the rik1-associated E3 ubiquitin ligase complex that shows ubiquitin ligase activity and is required for histone H3K9 methylation. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting swi6/HP1 to methylated histones which leads to transcriptional s [...]

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

NEDD8-activating enzyme E1 catalytic subunit; Catalytic subunit of the dimeric uba3-ula1 E1 enzyme. E1 activates NEDD8/ubl1 by first adenylating its C-terminal glycine residue with ATP, thereafter linking this residue to the side chain of the catalytic cysteine, yielding a NEDD8-uba3 thioester and free AMP. E1 finally transfers NEDD8 to the catalytic cysteine of ubc12 (By similarity).

Cullin-3; Probable core component of multiple cullin-RING-based BC3B (BTB-CUL3-BTB) E3 ubiquitin-protein ligase complexes which mediate the ubiquitination and subsequent proteasomal degradation of target proteins. As a scaffold protein may contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The functional specificity of the BC3B complex depends on the substrate recognition component (By similarity). Involved in ubiquitin-mediated degradation of btb3.

NEDD8-conjugating enzyme ubc12; Accepts the ubiquitin-like protein NEDD8/RUB1 from the UBA3- ULA1 E1 complex and catalyzes its covalent attachment to other proteins; Belongs to the ubiquitin-conjugating enzyme family. UBC12 subfamily.

Cullin-4; Required, indirectly, for activation of ribonucleotide reductase through the degradation of the protein spd1, thereby supplying deoxyribonucleotides for DNA replication and repair. Also has a role as a scaffold for assembling ubiquitin ligases. Component of the rik1-associated E3 ubiquitin ligase complex that shows ubiquitin ligase activity and is required for histone H3K9 methylation. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting swi6/HP1 to methylated histones which leads to transcriptional silencing within centromeric heterochroma [...]

Serine/threonine-protein kinase chk1; Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA. May also negatively regulate cell cycle progression during unperturbed cell cycles. Binds to and phosphorylates CDC25. This leads to negative regulation of CDC25 and prevents mitotic entry.

Cullin-4; Required, indirectly, for activation of ribonucleotide reductase through the degradation of the protein spd1, thereby supplying deoxyribonucleotides for DNA replication and repair. Also has a role as a scaffold for assembling ubiquitin ligases. Component of the rik1-associated E3 ubiquitin ligase complex that shows ubiquitin ligase activity and is required for histone H3K9 methylation. H3K9me represents a specific tag for epigenetic transcriptional repression by recruiting swi6/HP1 to methylated histones which leads to transcriptional silencing within centromeric heterochroma [...]

Cullin-1; Core component of multiple cullin-RING-based SCF (SKP1-CUL1- F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of target proteins. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. SCF(pop1-pop2) is required for the maintenance of ploidy and directs ubiquitination of cig2; Belongs to the cullin family.