BAIT
NHP6A
L000001244, L000001245, YPR052C
High-mobility group (HMG) protein; binds to and remodels nucleosomes; involved in recruiting FACT and other chromatin remodelling complexes to chromosomes; functionally redundant with Nhp6Bp; required for transcriptional initiation fidelity of some tRNA genes; homologous to mammalian HMGB1 and HMGB2; NHP6A has a paralog, NHP6B, that arose from the whole genome duplication; protein abundance increases in response to DNA replication stress
GO Process (6)
GO Function (3)
GO Component (2)
Gene Ontology Biological Process
- DNA replication-independent nucleosome organization [IDA]
- RNA polymerase II transcriptional preinitiation complex assembly [IDA]
- RNA polymerase III transcriptional preinitiation complex assembly [IDA, IGI]
- chromatin remodeling [IGI]
- maintenance of transcriptional fidelity during DNA-templated transcription elongation from RNA polymerase III promoter [IDA]
- mismatch repair [IC]
Gene Ontology Molecular Function
Gene Ontology Cellular Component
Saccharomyces cerevisiae (S288c)
PREY
POB3
FACT complex subunit POB3, L000003326, YML069W
Subunit of the heterodimeric FACT complex (Spt16p-Pob3p); FACT associates with chromatin via interaction with Nhp6Ap and Nhp6Bp, and reorganizes nucleosomes to facilitate access to DNA by RNA and DNA polymerases; protein abundance increases in response to DNA replication stress
GO Process (4)
GO Function (3)
GO Component (4)
Gene Ontology Biological Process
Gene Ontology Molecular Function
Gene Ontology Cellular Component
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
Spt16-Pob3 and the HMG protein Nhp6 combine to form the nucleosome-binding factor SPN.
Yeast Spt16/Cdc68 and Pob3 form a heterodimer that acts in both DNA replication and transcription. This is supported by studies of new alleles of SPT16 described here. We show that Spt16-Pob3 enhances HO transcription through a mechanism that is affected by chromatin modification, since some of the defects caused by mutations can be suppressed by deleting the histone deacetylase Rpd3. ... [more]
EMBO J. Jul. 02, 2001; 20(13);3506-17 [Pubmed: 11432837]
Throughput
- Low Throughput
Ontology Terms
- phenotype: inviable (APO:0000112)
- phenotype: heat sensitivity (APO:0000147)
Additional Notes
- both nph6a/b deleted
Related interactions
Interaction | Experimental Evidence Code | Dataset | Throughput | Score | Curated By | Notes |
---|---|---|---|---|---|---|
POB3 NHP6A | Reconstituted Complex Reconstituted Complex An interaction is detected between purified proteins in vitro. | Low | - | BioGRID | - |
Curated By
- BioGRID