dbPAF Protein Information


Tag Content
dbPAF ID dbPAF-0001320
Uniprot Accession O35815; ATX3_RAT;
Genbank Protein ID NP_067734.1;
Genbank Nucleotide ID NM_021702.1;
Protein Name Ataxin-3
Protein Synonyms/Alias Machado-Joseph disease protein 1 homolog;
Gene Name Atxn3
Gene Synonyms/Alias Mjd;Sca3;
Organism Rattus norvegicus(Rat)
NCBI Taxa ID 10116
Functional Description
(View all)
Deubiquitinating enzyme involved in protein homeostasis maintenance, transcription, cytoskeleton regulation, myogenesis and degradation of misfolded chaperone substrates. Binds long polyubiquitin chains and trims them, while it has weak or no activity against chains of 4 or less ubiquitins. Involved in degradation of misfolded chaperone substrates via its interaction with STUB1/CHIP: recruited to monoubiquitinated STUB1/CHIP, and restricts the length of ubiquitin chain attached to STUB1/CHIP substrates and preventing further chain extension. In response to misfolded substrate ubiquitination, mediates deubiquitination of monoubiquitinated STUB1/CHIP. Interacts with key regulators of transcription and represses transcription: acts as a histone-binding protein that regulates transcription (By similarity).
Phosphorylation Sites
dbPAF PTMs: 2
PositionPeptidesSourceReferences ( PMIDs )
261QLSMQGSSRGMCEDSPhosphoSitePlus22135298
268SRGMCEDSPQTSSTDPhosphoSitePlus22135298
Sequence
(Fasta)
MESIFHEKQE GSLCAQHCLN NLLQGEYFSP VELSSIAHQL DEEERLRMAE GGVTSEDYRT 60
FLQQPSGNMD DSGFFSIQVI SNALKVWGLE LILFNSPEYQ RLRIDPINER SFICNYKEHW 120
FTVRKLGKQW FNLNSLLTGP ELISDTYLAL FLAQLQQEGY SIFVVKGDLP DCEADQLLQM 180
IKVQQMHRPK LIGEELAHLK EQSALKADLE RVLEAADGPG MFDDDEDDLQ RALAMSRQEI 240
DMEDEEADLR RAIQLSMQGS SRGMCEDSPQ TSSTDLSSEE LRKRREAYFE KQQHQQQEAD 300
RPGYLSYPCE RPTTSSGGLR SNQAGNAMSE EDVLRATVTV SLETAKDSLK AERKK 356
Keyword

KW-0181--Complete proteome
KW-0378--Hydrolase
KW-1017--Isopeptide bond
KW-0539--Nucleus
KW-0597--Phosphoprotein
KW-0645--Protease
KW-1185--Reference proteome
KW-0677--Repeat
KW-0788--Thiol protease
KW-0804--Transcription
KW-0805--Transcription regulation
KW-0832--Ubl conjugation
KW-0833--Ubl conjugation pathway

Interpro

IPR006155--Josephin
IPR003903--UIM_dom

PROSITE

PS50957--JOSEPHIN
PS50330--UIM

Pfam

PF02099--Josephin
PF02809--UIM

Gene Ontology

GO:0005829--C:cytosol
GO:0005759--C:mitochondrial matrix
GO:0031966--C:mitochondrial membrane
GO:0042405--C:nuclear inclusion body
GO:0005634--C:nucleus
GO:0051117--F:ATPase binding
GO:0042802--F:identical protein binding
GO:1990380--F:Lys48-specific deubiquitinase activity
GO:0061578--F:Lys63-specific deubiquitinase activity
GO:0008242--F:omega peptidase activity
GO:0001012--F:RNA polymerase II regulatory region DNA binding
GO:0031625--F:ubiquitin protein ligase binding
GO:0004843--F:ubiquitin-specific protease activity
GO:0030036--P:actin cytoskeleton organization
GO:0034605--P:cellular response to heat
GO:0071218--P:cellular response to misfolded protein
GO:0035640--P:exploration behavior
GO:0070932--P:histone H3 deacetylation
GO:0045104--P:intermediate filament cytoskeleton organization
GO:0000226--P:microtubule cytoskeleton organization
GO:0006515--P:misfolded or incompletely synthesized protein catabolic process
GO:0035520--P:monoubiquitinated protein deubiquitination
GO:0043161--P:proteasome-mediated ubiquitin-dependent protein catabolic process
GO:0071108--P:protein K48-linked deubiquitination
GO:0070536--P:protein K63-linked deubiquitination
GO:0010810--P:regulation of cell-substrate adhesion
GO:0006355--P:regulation of transcription, DNA-templated
GO:0006351--P:transcription, DNA-templated