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Protein

26S proteasome regulatory subunit 8 homolog B

Gene

RPT6B

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

The 26S proteasome is involved in the ATP-dependent degradation of ubiquitinated proteins. The regulatory (or ATPase) complex confers ATP dependency and substrate specificity to the 26S complex.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi202 – 209ATPSequence analysis8

GO - Molecular functioni

GO - Biological processi

Keywordsi

LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

ReactomeiR-ATH-1236978 Cross-presentation of soluble exogenous antigens (endosomes)
R-ATH-174184 Cdc20:Phospho-APC/C mediated degradation of Cyclin A
R-ATH-349425 Autodegradation of the E3 ubiquitin ligase COP1
R-ATH-5632684 Hedgehog 'on' state
R-ATH-5687128 MAPK6/MAPK4 signaling
R-ATH-5689603 UCH proteinases
R-ATH-5689880 Ub-specific processing proteases
R-ATH-68949 Orc1 removal from chromatin
R-ATH-69017 CDK-mediated phosphorylation and removal of Cdc6
R-ATH-69229 Ubiquitin-dependent degradation of Cyclin D1
R-ATH-983168 Antigen processing: Ubiquitination & Proteasome degradation

Names & Taxonomyi

Protein namesi
Recommended name:
26S proteasome regulatory subunit 8 homolog B
Alternative name(s):
26S proteasome AAA-ATPase subunit RPT6b
26S proteasome subunit 8 homolog B
Regulatory particle triple-A ATPase subunit 6b
Gene namesi
Name:RPT6B
Synonyms:SUG1
Ordered Locus Names:At5g20000
ORF Names:F28I16.150
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 5

Organism-specific databases

AraportiAT5G20000
TAIRilocus:2147685 AT5G20000

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cell wall Cytoskeleton Vacuole Chloroplast Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertion Graphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Nucleus, Proteasome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved1 Publication
ChainiPRO_00003914882 – 41926S proteasome regulatory subunit 8 homolog BAdd BLAST418

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Cross-linki406Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in ubiquitin)By similarity

Keywords - PTMi

Isopeptide bond, Ubl conjugation

Proteomic databases

PaxDbiQ94BQ2
PRIDEiQ94BQ2

Expressioni

Gene expression databases

ExpressionAtlasiQ94BQ2 baseline and differential
GenevisibleiQ94BQ2 AT

Interactioni

Subunit structurei

Component of the 19S regulatory particle (RP/PA700) base subcomplex of the 26S proteasome. The 26S proteasome is composed of a core protease (CP), known as the 20S proteasome, capped at one or both ends by the 19S regulatory particle (RP/PA700). The RP/PA700 complex is composed of at least 17 different subunits in two subcomplexes, the base and the lid, which form the portions proximal and distal to the 20S proteolytic core, respectively.2 Publications

GO - Molecular functioni

Protein-protein interaction databases

BioGridi17398, 1 interactor
IntActiQ94BQ2, 2 interactors
STRINGi3702.AT5G20000.1

Structurei

3D structure databases

ProteinModelPortaliQ94BQ2
SMRiQ94BQ2
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the AAA ATPase family.Curated

Phylogenomic databases

eggNOGiKOG0728 Eukaryota
COG1222 LUCA
HOGENOMiHOG000225143
InParanoidiQ94BQ2
KOiK03066
OMAiLHEQGSH
OrthoDBiEOG09360CE6
PhylomeDBiQ94BQ2

Family and domain databases

InterProiView protein in InterPro
IPR005937 26S_Psome_P45-like
IPR003593 AAA+_ATPase
IPR003959 ATPase_AAA_core
IPR003960 ATPase_AAA_CS
IPR027417 P-loop_NTPase
PfamiView protein in Pfam
PF00004 AAA, 1 hit
SMARTiView protein in SMART
SM00382 AAA, 1 hit
SUPFAMiSSF52540 SSF52540, 1 hit
TIGRFAMsiTIGR01242 26Sp45, 1 hit
PROSITEiView protein in PROSITE
PS00674 AAA, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q94BQ2-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAAVGVEARP PVTAMEETCN VKGAAAKQGE GLNKYYLQHL DELQRLQREK
60 70 80 90 100
SYNLNRLEAQ RNELNSRVRM LREELQLLQE PGSYVGEVVK VMGKNKVLVK
110 120 130 140 150
VHPEGKYVVD IDKSIDITKL TPSTRVALRN DSYVLHLVLP SKVDPLVNLM
160 170 180 190 200
KVEKVPDSTY DMIGGLDQQI KEIKEVIELP IKHPELFESL GIAQPKGVLL
210 220 230 240 250
YGPPGTGKTL LARAVAHHTD CTFIRVSGSE LVQKYIGEGS RMVRELFVMA
260 270 280 290 300
REHAPSIIFM DEIDSIGSAR MESGSGNGDS EVQRTMLELL NQLDGFEASN
310 320 330 340 350
KIKVLMATNR IDILDQALLR PGRIDRKIEF PNPNEESRFD ILKIHSRKMN
360 370 380 390 400
LMRGIDLKKI AEKMNGASGA ELKAVCTEAG MFALRERRVH VTQEDFEMAV
410
AKVMKKDTEK NMSLRKLWK
Length:419
Mass (Da):47,157
Last modified:December 1, 2001 - v1
Checksum:iB464FB8131048F1F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF296836 Genomic DNA No translation available.
CP002688 Genomic DNA Translation: AED92778.1
AY039965 mRNA Translation: AAK64142.1
AY079403 mRNA Translation: AAL85134.1
AK226206 mRNA Translation: BAE98371.1
AY087503 mRNA Translation: AAM65046.1
RefSeqiNP_197500.1, NM_122007.4
UniGeneiAt.51251

Genome annotation databases

EnsemblPlantsiAT5G20000.1; AT5G20000.1; AT5G20000
GeneIDi832122
GrameneiAT5G20000.1; AT5G20000.1; AT5G20000
KEGGiath:AT5G20000

Similar proteinsi

Entry informationi

Entry nameiPRS8B_ARATH
AccessioniPrimary (citable) accession number: Q94BQ2
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 9, 2010
Last sequence update: December 1, 2001
Last modified: May 23, 2018
This is version 112 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. SIMILARITY comments
    Index of protein domains and families

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