BAIT

SBA1

CST18, L000004284, L000002999, S000029122, YKL117W

Co-chaperone that binds and regulates Hsp90 family chaperones; plays a role in determining prion variants; important for pp60v-src activity in yeast; homologous to the mammalian p23 proteins, and like p23 can regulate telomerase activity; protein abundance increases in response to DNA replication stress

GO Process (4)

GO Function (1)

GO Component (2)

Gene Ontology Biological Process

negative regulation of DNA binding [IDA]

positive regulation of telomere maintenance via telomerase [IDA, IMP]

protein folding [IMP, IPI]

regulation of telomerase activity [IDA, IMP]

Gene Ontology Molecular Function

chaperone binding [IMP, IPI]

Gene Ontology Cellular Component

cytoplasm [IDA]

nucleus [IDA]

SGD Alliance of Genome Resources Entrez Gene RefSeq UniprotKB

Saccharomyces cerevisiae (S288c)

PREY

DGR2

YKL121W

Protein of unknown function; null mutant is resistant to 2-deoxy-D-glucose and displays abnormally elongated buds; DGR2 has a paralog, YMR102C, that arose from the whole genome duplication

GO Process (0)

GO Function (0)

GO Component (0)

SGD Alliance of Genome Resources Entrez Gene RefSeq UniprotKB

Saccharomyces cerevisiae (S288c)

Synthetic Lethality

A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.

Publication

Global Functional Map of the p23 Molecular Chaperone Reveals an Extensive Cellular Network.

Echtenkamp FJ, Zelin E, Oxelmark E, Woo JI, Andrews BJ, Garabedian M, Freeman BC

In parallel with evolutionary developments, the Hsp90 molecular chaperone system shifted from a simple prokaryotic factor into an expansive network that includes a variety of cochaperones. We have taken high-throughput genomic and proteomic approaches to better understand the abundant yeast p23 cochaperone Sba1. Our work revealed an unexpected p23 network that displayed considerable independence from known Hsp90 clients. Additionally, our ... [more]

Mol. Cell Jul. 22, 2011; 43(2);229-41 [Pubmed: 21777812]

Throughput

High Throughput

Ontology Terms

inviable (APO:0000112)

Additional Notes

Related interactions

Interaction	Experimental Evidence Code	Dataset	Throughput	Score	Curated By	Notes
SBA1 DGR2	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.	Michaelis AC (2023)	High	2	BioGRID	3615853
SBA1 DGR2	Reconstituted Complex Reconstituted Complex An interaction is inferred between proteins in vitro. This can include proteins in recombinant form or proteins isolated directly from cells with recombinant or purified bait. For example, GST pull-down assays where a GST-tagged protein is first isolated and then used to fish interactors from cell lysates are considered reconstituted complexes (e.g. PUBMED: 14657240, Fig. 4A or PUBMED: 14761940, Fig. 5). This can also include gel-shifts, surface plasmon resonance, isothermal titration calorimetry (ITC) and bio-layer interferometry (BLI) experiments. The bait-hit directionality may not be clear for 2 interacting proteins. In these cases the directionality is up to the discretion of the curator.	Echtenkamp FJ (2011)	High	-	BioGRID	-
SBA1 DGR2	Two-hybrid Two-hybrid Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.	Echtenkamp FJ (2011)	High	-	BioGRID	-

Curated By

BioGRID

Interaction Summary