| UniProt ID | SIR1_YEAST | |
|---|---|---|
| UniProt AC | P21691 | |
| Protein Name | Regulatory protein SIR1 | |
| Gene Name | SIR1 | |
| Organism | Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast). | |
| Sequence Length | 654 | |
| Subcellular Localization | Nucleus. Chromosome, centromere. Associated primarily with the HMR-E silencer at the HMR locus. | |
| Protein Description | Involved in the establishment, but not the maintenance, of heterochromatic silencing at the cryptic mating-type loci HMR and HML. Is recruited by interacting with the ORC1 subunit of the origin recognition complex (ORC), which binds to HML-I or HMR-E silencers, DNA elements that direct the formation of silent chromatin at the mating-type loci. Establishes transcriptional silencing by recruiting the three other SIR proteins, SIR2, SIR3, and SIR4, that function directly in silenced chromatin and establish repression. Also found in centromeric chromatin. Binds to and helps retain CAC1, a subunit of chromatin assembly factor I (CAF-I) at centromeric loci independent on the other SIR proteins.. | |
| Protein Sequence | MLQINSRLAVIDGWLVDTVKRKPINFRSPEVRLLLPNDDDYKKLSQQNLVDWTRLKKDSNSVLVGVKSMELFKHIKLVLREFFLLEDGRIILKRIRSKLRYKVVKKLTCKCCRLYLPKWGTVYIHPMLKDKEKPLAGVCEFSLDVNPDREYPLIEINVSHQYIIIEGFLLYLNERRLYRWNDNNLRSQVGLTKWAHLRKTYNPVSLDILYSLNSNFYFVKDDLLFQLLGKRVFVKFCKVMENGKCGKAPLWYRVKRTTTAKATHIAYAISNSTAPDSFKSKNNDYRFIVREKPIVENTISNLDYSDIKKQQFTEAEVVKRKISADISQIENVHTQFNSQKEKNNIRVNKVSSEVLDQISKFPVSRVTLLLMSAGQDKNYIELVEELARRLEKICIEKTTQSLEEIRDTFQANPEMQASFDKEYYQSIEEYKITLELIKEDLLITLIKQMENMWAAEKKFSTEEEYVSPRFLVADGFLIDLAEEKPINPKDPRLLTLLKDHQRAMIDQMNLVKWNDFKKYQDPIPLKAKTLFKFCKQIKKKFLRGADFKLHTLPTEANLKYEPERMTVLCSCVPILLDDQTVQYLYDDSIIPEFEATSSYATKQSKCGRKMSLQMEPDLLFQEAIRRMRHLTAYDVLRRNYIAAFEELYMGNCND | |
| Overview of Protein Modification Sites with Functional and Structural Information | ||
|
|
||
* ASA = Accessible Surface Area
| Locations | Modification | Substrate Peptides & Secondary Structure |
ASA (%) | Reference | Orthologous Protein Cluster |
|---|---|---|---|---|---|
| 272 | Phosphorylation | IAYAISNSTAPDSFK HHHHHHCCCCCCCHH | 21.11 | 27017623 | |
| 273 | Phosphorylation | AYAISNSTAPDSFKS HHHHHCCCCCCCHHC | 46.60 | 27017623 | |
| 285 | Phosphorylation | FKSKNNDYRFIVREK HHCCCCCCEEEEECC | 15.00 | 27017623 |
| Modified Location | Modified Residue | Modification | Type of Upstream Proteins | Gene Name of Upstream Proteins | UniProt AC of Upstream Proteins | Sources |
|---|---|---|---|---|---|---|
Oops, there are no upstream regulatory protein records of SIR1_YEAST !! | ||||||
| Modified Location | Modified Residue | Modification | Function | Reference | ||
|---|---|---|---|---|---|---|
Oops, there are no descriptions of PTM sites of SIR1_YEAST !! | ||||||
* Distance = the distance between SAP position and PTM sites.
| Modified Location | Modification | Variant Position (Distance <= 10) |
Residue Change | SAP | Related Disease | Reference |
|---|---|---|---|---|---|---|
Oops, there are no SNP-PTM records of SIR1_YEAST !! | ||||||
| Kegg Drug | ||||||
|---|---|---|---|---|---|---|
| DrugBank | ||||||
| There are no disease associations of PTM sites. | ||||||
loading...
