Cortical ER protein involved in ER-plasma membrane tethering; one of 6 proteins (Ist2p, Scs2p, Scs22p, Tcb1p, Tcb2p, Tcb3p) that connect ER to the plasma membrane (PM) and regulate PM phosphatidylinositol-4-phosphate (PI4P) levels by controlling access of Sac1p phosphatase to its substrate PI4P in the PM; localizes to the mother cell in small-budded cells and to the bud in medium- and large-budded cells; mRNA is transported to the bud tip by an actomyosin-driven process

GO Process (3)

GO Function (1)

GO Component (4)

Gene Ontology Biological Process

endoplasmic reticulum membrane organization [IGI]

protein localization to plasma membrane [IMP]

regulation of phosphatidylinositol dephosphorylation [IGI]

Gene Ontology Molecular Function

lipid binding [IDA]

Gene Ontology Cellular Component

cellular bud membrane [IDA]

cortical endoplasmic reticulum [IDA]

integral component of membrane [ISM]

plasma membrane [IDA]

SGD Alliance of Genome Resources Entrez Gene RefSeq UniprotKB

Saccharomyces cerevisiae (S288c)

Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

Publication

Protein interaction network revealed by quantitative proteomic analysis links TFIIB to multiple aspects of the transcription cycle.

O'Brien MJ, Ansari A

Although TFIIB is widely regarded as an initiation factor, recent reports have implicated it in multiple aspects of eukaryotic transcription. To investigate the broader role of TFIIB in transcription, we performed quantitative proteomic analysis of yeast TFIIB. We purified two different populations of TFIIB; one from soluble cell lysate, which is not engaged in transcription, and the other from the ... [more]

Biochim Biophys Acta Proteins Proteom Jan. 01, 2024; 1872(1);140968 [Pubmed: 37863410]

Throughput

High Throughput

Related interactions

Interaction	Experimental Evidence Code	Dataset	Throughput	Score	Curated By	Notes
SUA7 IST2	Affinity Capture-MS Affinity Capture-MS An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.	Gavin AC (2002)	High	-	BioGRID	-
IST2 SUA7	Negative Genetic Negative Genetic Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.	Costanzo M (2016)	High	-0.1576	BioGRID	2028676

Curated By

BioGRID

Interaction Summary

SUA7

Gene Ontology Biological Process

Gene Ontology Molecular Function

RNA polymerase II core binding [IDA, IPI]TBP-class protein binding [IDA, IPI]TBP-class protein binding RNA polymerase II transcription factor activity involved in preinitiation complex assembly [IDA, IMP]core RNA polymerase II recruiting transcription factor activity [IDA, IMP]

Gene Ontology Cellular Component

IST2

Gene Ontology Biological Process

Gene Ontology Molecular Function

lipid binding [IDA]

Gene Ontology Cellular Component

Affinity Capture-MS

Publication

Protein interaction network revealed by quantitative proteomic analysis links TFIIB to multiple aspects of the transcription cycle.

Throughput

Related interactions

Curated By

RNA polymerase II core binding [IDA, IPI]
TBP-class protein binding [IDA, IPI]
TBP-class protein binding RNA polymerase II transcription factor activity involved in preinitiation complex assembly [IDA, IMP]
core RNA polymerase II recruiting transcription factor activity [IDA, IMP]