Sirt7
entrez
303745
canonical
uniprot
B2RZ55
canonical
ensembl
ENSRNOG00000036683
resolver
ensembl
ENSRNOG00055030522
resolver
ensembl
ENSRNOG00060021286
resolver
ensembl
ENSRNOG00065004217
resolver
ensp
ENSRNOP00000051834
resolver
ensp
ENSRNOP00000102583
resolver
ensp
ENSRNOP00055043759
resolver
ensp
ENSRNOP00060030378
resolver
ensp
ENSRNOP00065004390
resolver
enst
ENSRNOT00000054951
resolver
enst
ENSRNOT00000152243
resolver
enst
ENSRNOT00055052956
resolver
enst
ENSRNOT00060036868
resolver
enst
ENSRNOT00065006154
resolver
genesymbol
Sirt7
resolver
uniprot
A0ABK0LBF7
resolver
uniprot
F1LQY4
resolver
uniprot_entry
A0ABK0LBF7_RAT
resolver
uniprot_entry
SIR7_RAT
resolver
uniprot_sec
F1LQY4
resolver
activity_regulation
ACTIVITY REGULATION: NAD-dependent protein-lysine deacetylase and deacylase activities are activated by nucleic acids. Histone deacetylase activity is activated by DNA. Protein-lysine deacylase activity is activated by RNA. H3K18Ac histone deacetylase activity is inhibited by methylation at Arg-390. H3K18Ac histone deacetylase activity is inhibited by deubiquitination by USP7. {ECO:0000250|UniProtKB:Q9NRC8}.
uniprot
proteins
amino_acid_sequence
MAAGGGLSRSERKAAERVRRLREEQQRERLRQVSRILRKAAAERSAEEGRLLAESEDLVTELQGRSRRREGLKRRQEEVCDDPEELRRKVRELAGAVRSARHLVVYTGAGISTAASIPDYRGPNGVWTLLQKGRPVSAADLSEAEPTLTHMSITQLHKHKLVQHVVSQNCDGLHLRSGLPRTAISELHGNMYIEVCTSCIPNREYVRVFDVTERTALHRHLTGRTCHKCGTQLRDTIVHFGERGTLGQPLNWEAATEAASKADTILCLGSSLKVLKKYPRLWCMTKPPSRRPKLYIVNLQWTPKDDWAALKLHGKCDDVMRLLMDELGLEIPVYNRWQDPIFSLATPLRAGEEGSHSRKSLCRSREEPPPGDQSAPLASATPILGGWFGRGCAKRAKRKKAA
uniprot
proteins
ec_number
2.3.1.-
uniprot
proteins
ec_number
2.3.1.286
uniprot
proteins
function
FUNCTION: NAD-dependent protein-lysine deacylase that can act both as a deacetylase or deacylase (desuccinylase, depropionylase, deglutarylase and dedecanoylase), depending on the context. Specifically mediates deacetylation of histone H3 at 'Lys-18' (H3K18Ac). In contrast to other histone deacetylases, displays strong preference for a specific histone mark, H3K18Ac, directly linked to control of gene expression. H3K18Ac is mainly present around the transcription start site of genes and has been linked to activation of nuclear hormone receptors; SIRT7 thereby acts as a transcription repressor. Moreover, H3K18 hypoacetylation has been reported as a marker of malignancy in various cancers and seems to maintain the transformed phenotype of cancer cells. Also able to mediate deacetylation of histone H3 at 'Lys-36' (H3K36Ac) in the context of nucleosomes. Also mediates deacetylation of non-histone proteins, such as ATM, CDK9, DDX21, DDB1, FBL, FKBP5/FKBP51, GABPB1, RAN, RRP9/U3-55K and POLR1E/PAF53. Enriched in nucleolus where it stimulates transcription activity of the RNA polymerase I complex. Acts by mediating the deacetylation of the RNA polymerase I subunit POLR1E/PAF53, thereby promoting the association of RNA polymerase I with the rDNA promoter region and coding region. In response to metabolic stress, SIRT7 is released from nucleoli leading to hyperacetylation of POLR1E/PAF53 and decreased RNA polymerase I transcription. Required to restore the transcription of ribosomal RNA (rRNA) at the exit from mitosis. Promotes pre-ribosomal RNA (pre-rRNA) cleavage at the 5'-terminal processing site by mediating deacetylation of RRP9/U3-55K, a core subunit of the U3 snoRNP complex. Mediates 'Lys-37' deacetylation of Ran, thereby regulating the nuclear export of NF-kappa-B subunit RELA/p65. Acts as a regulator of DNA damage repair by mediating deacetylation of ATM during the late stages of DNA damage response, promoting ATM dephosphorylation and deactivation. Suppresses the activity of the DCX (DDB1-CUL4-X-box) E3 ubiquitin-protein ligase complexes by mediating deacetylation of DDB1, which prevents the interaction between DDB1 and CUL4 (CUL4A or CUL4B). Activates RNA polymerase II transcription by mediating deacetylation of CDK9, thereby promoting 'Ser-2' phosphorylation of the C-terminal domain (CTD) of RNA polymerase II. Deacetylates FBL, promoting histone-glutamine methyltransferase activity of FBL (By similarity). Acts as a regulator of mitochondrial function by catalyzing deacetylation of GABPB1 (By similarity). Regulates Akt/AKT1 activity by mediating deacetylation of FKBP5/FKBP51. Required to prevent R-loop-associated DNA damage and transcription-associated genomic instability by mediating deacetylation and subsequent activation of DDX21, thereby overcoming R-loop-mediated stalling of RNA polymerases. In addition to protein deacetylase activity, also acts as a protein-lysine deacylase (By similarity). Acts as a protein depropionylase by mediating depropionylation of Osterix (SP7), thereby regulating bone formation by osteoblasts (By similarity). Acts as a histone deglutarylase by mediating deglutarylation of histone H4 on 'Lys-91' (H4K91glu); a mark that destabilizes nucleosomes by promoting dissociation of the H2A-H2B dimers from nucleosomes. Acts as a histone desuccinylase: in response to DNA damage, recruited to DNA double-strand breaks (DSBs) and catalyzes desuccinylation of histone H3 on 'Lys-122' (H3K122succ), thereby promoting chromatin condensation and DSB repair (By similarity). Also promotes DSB repair by promoting H3K18Ac deacetylation, regulating non-homologous end joining (NHEJ). Along with its role in DNA repair, required for chromosome synapsis during prophase I of female meiosis by catalyzing H3K18Ac deacetylation (By similarity). Involved in transcriptional repression of LINE-1 retrotransposon via H3K18Ac deacetylation, and promotes their association with the nuclear lamina. Required to stabilize ribosomal DNA (rDNA) heterochromatin and prevent cellular senescence induced by rDNA instability (By similarity). Acts as a negative regulator of SIRT1 by preventing autodeacetylation of SIRT1, restricting SIRT1 deacetylase activity (By similarity). {ECO:0000250|UniProtKB:Q8BKJ9, ECO:0000250|UniProtKB:Q9NRC8}.
uniprot
proteins
mass_dalton
45113
uniprot
proteins
post_translational_modification
PTM: Phosphorylated during mitosis. {ECO:0000250|UniProtKB:Q9NRC8}.; PTM: Methylation at Arg-390 by PRMT6 inhibits the H3K18Ac histone deacetylase activity, promoting mitochondria biogenesis and maintaining mitochondria respiration. {ECO:0000250|UniProtKB:Q9NRC8}.; PTM: Ubiquitinated via 'Lys-63'-linked ubiquitin chains. Deubiquitinated by USP7, inhibiting the H3K18Ac histone deacetylase activity and regulating gluconeogenesis. Ubiquitinated by E3 ubiquitin-protein ligase complex containing FBXO7; leading to proteasomal degradation. {ECO:0000250|UniProtKB:Q9NRC8}.
uniprot
proteins
protein_family
Class IV subfamily
uniprot
proteins
protein_family
Sirtuin family
uniprot
proteins
pubmed
15057822
uniprot
proteins
pubmed
15489334
uniprot
proteins
sequence_length
402
uniprot
proteins
subcellular_location
SUBCELLULAR LOCATION: Nucleus, nucleolus {ECO:0000250|UniProtKB:Q9NRC8}. Nucleus, nucleoplasm {ECO:0000250|UniProtKB:Q9NRC8}. Chromosome {ECO:0000250|UniProtKB:Q9NRC8}. Cytoplasm {ECO:0000250|UniProtKB:Q9NRC8}. Note=Mainly localizes in the nucleolus and nucleoplasm. Associated with rDNA promoter and transcribed region. Associated with nucleolar organizer regions during mitosis. In response to stress, released from nucleolus to nucleoplasm. Associated with chromatin. In response to DNA damage, recruited to DNA double-strand breaks (DSBs) sites. Located close to the nuclear membrane when in the cytoplasm. {ECO:0000250|UniProtKB:Q9NRC8}.
uniprot
proteins