MSA1 protein (Saccharomyces cerevisiae) - STRING interaction network
"MSA1" - Activator of G1-specific transcription factors, MBF and SBF in Saccharomyces cerevisiae
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Predicted Interactions
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Gene Fusion
MSA1Activator of G1-specific transcription factors, MBF and SBF; involved in regulation of the timing of G1-specific gene transcription and cell cycle initiation; localization is cell-cycle dependent and regulated by Cdc28p phosphorylation; Activator of G1-specific transcription factors, MBF and SBF. Promotes both the timing of G1-specific gene transcription and cell cycle initiation. Associates with SBF- and MBF-regulated target promoters and this binding is maximal during the G1 phase, prior to maximum budding. Affects cell cycle initiation by advancing the timing of transcription of G1- [...] (629 aa)    
Predicted Functional Partners:
Catalytic subunit of the main cell cycle cyclin-dependent kinase (CDK); alternately associates with G1 cyclins (CLNs) and G2/M cyclins (CLBs) which direct the CDK to specific substrates; This protein is essential for the completion of the start, the controlling event, in the cell cycle. More than 200 substrates have been identified (298 aa)
DNA binding component of the SBF complex (Swi4p-Swi6p), a transcriptional activator that in concert with MBF (Mbp1-Swi6p) regulates late G1-specific transcription of targets including cyclins and genes required for DNA synthesis and repair; Part of a complex involved in cell-cycle-dependent transcription. SWI4 and SWI6 are required for formation of the cell-cycle box factor-DNA complex. The repeated element in the upstream region of HO (5’-CACGAAAA-3’) is called the cell cycle box (CCB) (1093 aa)
Putative transcriptional activator; interacts with G1-specific transcription factor MBF and G1-specific promoters; MSA2 has a paralog, MSA1, that arose from the whole genome duplication (363 aa)
Transcription factor involved in regulation of cell cycle progression from G1 to S phase, forms a complex with Swi6p that binds to MluI cell cycle box regulatory element in promoters of DNA synthesis genes; Binds to MCB elements (Mlu I cell cycle box) found in the promoter of most DNA synthesis genes. Transcriptional activation by MBF has an important role in the transition from G1 to S phase. It may have a dual role in that it behaves as an activator of transcription at the G1-S boundary and as a repressor during other stages of the cell cycle (833 aa)
Transcription cofactor, forms complexes with Swi4p and Mbp1p to regulate transcription at the G1/S transition; involved in meiotic gene expression; cell wall stress induces phosphorylation by Mpk1p, which regulates Swi6p localization; Part of a complex involved in cell-cycle-dependent transcription. SWI4 and SWI6 are required for formation of the cell-cycle box factor-DNA complex. The repeated element in the upstream region of HO (5’-CACGAAAA-3’) is called the cell cycle box (CCB) (803 aa)
Single-stranded DNA origin-binding and annealing protein; required for the initiation of DNA replication; phosphorylated in S phase by cyclin-dependent kinases (Cdks), promoting origin binding, DNA replication and Dpb11p complex formation; component /.../e preloading complex; unphosphorylated or CDK-phosphorylated Sld2p binds to the MCM2-7 complex;required for the S phase checkpoint; Has a role in the initiation of DNA replication. Required at S-phase checkpoint. Also required for the proper activation of RAD53 in response to DNA damage and replication blocks (453 aa)
Protein phosphatase required for mitotic exit; required for rDNA segregation, cytokinesis, meiosis I spindle disassembly, environmental stress response; held in nucleolus by Cdc55p in early meiosis, liberated by FEAR and Mitotic Exit Network in anaphase, enabling it to effect a decrease in CDK/B-cyclin activity and mitotic exit; sequestered in metaphase II, released upon entry into anaphase II; human homolog CDC14A can complement thermosensitivity of yeast cdc14-1 mutant; Protein phosphatase which antagonizes mitotic cyclin- dependent kinase CDC28, the inactivation of which is essentia [...] (551 aa)
Essential ATP-binding protein required for DNA replication, component of the pre-replicative complex (pre-RC) which requires ORC to associate with chromatin and is in turn required for Mcm2-7p DNA association; homologous to S. pombe Cdc18p; Plays a crucial role in forming the pre-replicative complexes. Interacts with the origin recognition complex (ORC) and MCM2-7 helicase complex leading to the linking of those complexes and loading of the replicative helicase MCM2-7 onto the pre- replicative complexes. Required for the initiation of DNA replication and then actively participates in t [...] (513 aa)
Catalytic subunit of DNA polymerase (II) epsilon, a chromosomal DNA replication polymerase that exhibits processivity and proofreading exonuclease activity; also involved in DNA synthesis during DNA repair; interacts extensively with Mrc1p; DNA polymerase epsilon (DNA polymerase II) participates in chromosomal DNA replication. It is required during synthesis of the leading and lagging DNA strands at the replication fork and binds at/or near replication origins and moves along DNA with the replication fork. It has 3’-5’ proofreading exonuclease activity that correct errors arising durin [...] (2222 aa)
DDK (Dbf4-dependent kinase) catalytic subunit required for firing origins and replication fork progression in S phase through phosphorylation of Mcm2-7p complexes and Cdc45p; kinase activity correlates with cyclical DBF4 expression; Serine/threonine-protein kinase. Needed for the initiation of DNA synthesis during mitosis as well as for synaptonemal complex formation and commitment to recombination during meiosis. Required for HTA1-HTB1 locus transcription repression (507 aa)
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
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