Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

E3 ubiquitin-protein ligase KEG

Gene

KEG

Organism
Arabidopsis thaliana (Mouse-ear cress)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Mediates E2-dependent protein ubiquitination. Acts as a negative regulator of abscisic acid signaling. Required for ABI5 degradation, by mediating its ubiquitination. Together with EDR1, may regulate endocytic trafficking and/or the formation of signaling complexes on trans-Golgi network (TGN)/ early endosome (EE) vesicles during stress responses.3 Publications

Catalytic activityi

ATP + a protein = ADP + a phosphoprotein.

Pathwayi: protein ubiquitination

This protein is involved in the pathway protein ubiquitination, which is part of Protein modification.
View all proteins of this organism that are known to be involved in the pathway protein ubiquitination and in Protein modification.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei176ATPPROSITE-ProRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri10 – 56RING-typePROSITE-ProRule annotationAdd BLAST47
Nucleotide bindingi147 – 155ATPPROSITE-ProRule annotation9

GO - Molecular functioni

  • ATP binding Source: UniProtKB-KW
  • ligase activity Source: UniProtKB-KW
  • protein kinase activity Source: TAIR
  • protein self-association Source: TAIR
  • protein serine/threonine kinase activity Source: GO_Central
  • ubiquitin-protein transferase activity Source: TAIR
  • zinc ion binding Source: InterPro

GO - Biological processi

  • abscisic acid-activated signaling pathway Source: TAIR
  • defense response Source: TAIR
  • developmental growth Source: TAIR
  • endosomal transport Source: TAIR
  • late endosome to vacuole transport Source: TAIR
  • negative regulation of abscisic acid-activated signaling pathway Source: TAIR
  • protein ubiquitination Source: TAIR
  • response to abscisic acid Source: TAIR
  • secretion by cell Source: TAIR
Complete GO annotation...

Keywords - Molecular functioni

Kinase, Ligase, Serine/threonine-protein kinase, Transferase

Keywords - Biological processi

Abscisic acid signaling pathway, Ubl conjugation pathway

Keywords - Ligandi

ATP-binding, Metal-binding, Nucleotide-binding, Zinc

Enzyme and pathway databases

UniPathwayiUPA00143.

Names & Taxonomyi

Protein namesi
Recommended name:
E3 ubiquitin-protein ligase KEG (EC:2.7.11.1, EC:6.3.2.-)
Alternative name(s):
Protein KEEP ON GOING
RING finger protein KEG
Gene namesi
Name:KEG
Ordered Locus Names:At5g13530
ORF Names:T6I14.60, T6I14.70
OrganismiArabidopsis thaliana (Mouse-ear cress)
Taxonomic identifieri3702 [NCBI]
Taxonomic lineageiEukaryotaViridiplantaeStreptophytaEmbryophytaTracheophytaSpermatophytaMagnoliophytaeudicotyledonsGunneridaePentapetalaerosidsmalvidsBrassicalesBrassicaceaeCamelineaeArabidopsis
Proteomesi
  • UP000006548 Componenti: Chromosome 5

Organism-specific databases

TAIRiAT5G13530.

Subcellular locationi

  • Golgi apparatustrans-Golgi network 1 Publication
  • Early endosome 1 Publication

GO - Cellular componenti

  • early endosome Source: TAIR
  • trans-Golgi network Source: TAIR
Complete GO annotation...

Keywords - Cellular componenti

Endosome, Golgi apparatus

Pathology & Biotechi

Disruption phenotypei

Plants are seedling lethal and are hypersensitive to glucose and abscisic acid. High accumulation of ABI5.2 Publications

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi29 – 31CGH → AGA: Small sterile plants unable to polyubiquitinate ABI5. 1 Publication3
Mutagenesisi176K → R: Loss of kinase activity associated with the loss of ABA-induced KEG autoubiquitination and subsequent degradation. 1 Publication1
Mutagenesisi1144G → S in keg-4/supp69; confers resistance to 6% glucose and suppresses abscisic acid signaling. Suppression of EDR1 disruption- (edr1-) mediated disease resistance. Reduced endosomal localization but increased localization to the endoplasmic reticulum and cytosol. 2 Publications1

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00003561721 – 1625E3 ubiquitin-protein ligase KEGAdd BLAST1625

Post-translational modificationi

Autophosphotylated and autoubiquitinated in vitro.2 Publications
Phosphorylation enhances self-ubiquitination.2 Publications
Autoubiquitinated in response to abscisic acid (ABA) and subsequently targeted to proteolysis.2 Publications

Keywords - PTMi

Phosphoprotein, Ubl conjugation

Proteomic databases

PaxDbiQ9FY48.

PTM databases

iPTMnetiQ9FY48.

Expressioni

Tissue specificityi

Expressed in all tissues of young seedlings. In flowering plants, only detected in the youngest part of the stem, anthers and the receptacle of immature siliques. Not found in mature leave, older parts of the stem, flower parts other than anthers or mature siliques.1 Publication

Developmental stagei

Expressed mainly in the actively growing and dividing cells.1 Publication

Gene expression databases

ExpressionAtlasiQ9FY48. baseline and differential.
GenevisibleiQ9FY48. AT.

Interactioni

Subunit structurei

Interacts with ABI5 and EDR1.2 Publications

Binary interactionsi

WithEntry#Exp.IntActNotes
ABI5Q9SJN02EBI-1955729,EBI-1778690

GO - Molecular functioni

  • protein self-association Source: TAIR

Protein-protein interaction databases

BioGridi16475. 10 interactors.
IntActiQ9FY48. 1 interactor.
STRINGi3702.AT5G13530.1.

Structurei

3D structure databases

ProteinModelPortaliQ9FY48.
SMRiQ9FY48.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini141 – 427Protein kinasePROSITE-ProRule annotationAdd BLAST287
Repeati467 – 496ANK 1Add BLAST30
Repeati510 – 540ANK 2Add BLAST31
Repeati544 – 573ANK 3Add BLAST30
Repeati579 – 608ANK 4Add BLAST30
Repeati612 – 641ANK 5Add BLAST30
Repeati647 – 676ANK 6Add BLAST30
Repeati685 – 720ANK 7Add BLAST36
Repeati725 – 754ANK 8Add BLAST30
Repeati758 – 787ANK 9Add BLAST30
Repeati791 – 826ANK 10Add BLAST36
Repeati832 – 863ANK 11Add BLAST32

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Compositional biasi88 – 107Asp-richAdd BLAST20
Compositional biasi1494 – 1497Poly-Glu4

Domaini

The RING-type zinc finger domain mediates binding to an E2 ubiquitin-conjugating enzyme.By similarity

Sequence similaritiesi

Contains 11 ANK repeats.PROSITE-ProRule annotation
Contains 1 protein kinase domain.PROSITE-ProRule annotation
Contains 1 RING-type zinc finger.PROSITE-ProRule annotation

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri10 – 56RING-typePROSITE-ProRule annotationAdd BLAST47

Keywords - Domaini

ANK repeat, Repeat, Zinc-finger

Phylogenomic databases

eggNOGiKOG0198. Eukaryota.
KOG0504. Eukaryota.
KOG4185. Eukaryota.
COG0666. LUCA.
HOGENOMiHOG000084006.
InParanoidiQ9FY48.
KOiK16279.
OMAiTEPRWGW.
OrthoDBiEOG0936005Q.
PhylomeDBiQ9FY48.

Family and domain databases

Gene3Di1.25.40.20. 1 hit.
3.30.40.10. 1 hit.
InterProiIPR002110. Ankyrin_rpt.
IPR020683. Ankyrin_rpt-contain_dom.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR001841. Znf_RING.
IPR013083. Znf_RING/FYVE/PHD.
IPR017907. Znf_RING_CS.
[Graphical view]
PfamiPF12796. Ank_2. 2 hits.
PF00069. Pkinase. 1 hit.
PF14634. zf-RING_5. 1 hit.
[Graphical view]
PRINTSiPR01415. ANKYRIN.
SMARTiSM00248. ANK. 9 hits.
SM00184. RING. 1 hit.
[Graphical view]
SUPFAMiSSF48403. SSF48403. 1 hit.
SSF56112. SSF56112. 1 hit.
PROSITEiPS50297. ANK_REP_REGION. 1 hit.
PS50088. ANK_REPEAT. 5 hits.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00518. ZF_RING_1. 1 hit.
PS50089. ZF_RING_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

This entry describes 1 isoform i produced by alternative splicing. AlignAdd to basket

Note: A number of isoforms are produced. According to EST sequences.
Isoform 1 (identifier: Q9FY48-1) [UniParc]FASTAAdd to basket

This isoform has been chosen as the 'canonical' sequence. All positional information in this entry refers to it. This is also the sequence that appears in the downloadable versions of the entry.

« Hide

        10         20         30         40         50
MVGRVKVPCC SVCHTRYNED ERVPLLLQCG HGFCKDCLSK MFSTSSDTTL
60 70 80 90 100
TCPRCRHVSV VGNSVQGLRK NYAMLALIHA ASGGANFDCD YTDDEDDDDE
110 120 130 140 150
EDGSDEDGAR AARGFHASSS INSLCGPVIE VGAHPEMKLV RQIGEESSSG
160 170 180 190 200
GFGGVEMWDA TVAGGGGRCK HRVAVKKMTL TEDMDVEWMQ GQLESLRRAS
210 220 230 240 250
MWCRNVCTFH GVVKMDGSLC LLMDRCFGSV QSEMQRNEGR LTLEQILRYG
260 270 280 290 300
ADVARGVAEL HAAGVICMNI KPSNLLLDAS GNAVVSDYGL APILKKPTCQ
310 320 330 340 350
KTRPEFDSSK VTLYTDCVTL SPHYTAPEAW GPVKKLFWED ASGVSPESDA
360 370 380 390 400
WSFGCTLVEM CTGSTPWDGL SREEIFQAVV KARKVPPQYE RIVGVGIPRE
410 420 430 440 450
LWKMIGECLQ FKPSKRPTFN AMLATFLRHL QEIPRSPSAS PDNGIAKICE
460 470 480 490 500
VNIVQAPRAT NIGVFQDNPN NLHRVVLEGD FEGVRNILAK AAAGGGGSSV
510 520 530 540 550
RSLLEAQNAD GQSALHLACR RGSAELVEAI LEYGEANVDI VDKDGDPPLV
560 570 580 590 600
FALAAGSPQC VHVLIKKGAN VRSRLREGSG PSVAHVCSYH GQPDCMRELL
610 620 630 640 650
VAGADPNAVD DEGETVLHRA VAKKYTDCAI VILENGGSRS MTVSNAKCLT
660 670 680 690 700
PLHMCVATWN VAVIKRWVEV SSPEEISQAI NIPSPVGTAL CMAASIRKDH
710 720 730 740 750
EKEGRELVQI LLAAGADPTA QDAQHGRTAL HTAAMANNVE LVRVILDAGV
760 770 780 790 800
NANIRNVHNT IPLHMALARG ANSCVSLLLE SGSDCNIQDD EGDNAFHIAA
810 820 830 840 850
DAAKMIRENL DWLIVMLRSP DAAVDVRNHS GKTVRDFLEA LPREWISEDL
860 870 880 890 900
MEALLKRGVH LSPTIYEVGD WVKFKRGITT PLHGWQGAKP KSVGFVQTIL
910 920 930 940 950
EKEDMIIAFC SGEARVLANE VVKLIPLDRG QHVRLRADVK EPRFGWRGQS
960 970 980 990 1000
RDSVGTVLCV DEDGILRVGF PGASRGWKAD PAEMERVEEF KVGDWVRIRQ
1010 1020 1030 1040 1050
NLTSAKHGFG SVVPGSMGIV YCVRPDSSLL VELSYLPNPW HCEPEEVEPV
1060 1070 1080 1090 1100
APFRIGDRVC VKRSVAEPRY AWGGETHHSV GKISEIENDG LLIIEIPNRP
1110 1120 1130 1140 1150
IPWQADPSDM EKIDDFKVGD WVRVKASVSS PKYGWEDITR NSIGVMHSLD
1160 1170 1180 1190 1200
EDGDVGIAFC FRSKPFSCSV TDVEKVTPFH VGQEIHMTPS ITQPRLGWSN
1210 1220 1230 1240 1250
ETPATIGKVM RIDMDGTLSA QVTGRQTLWR VSPGDAELLS GFEVGDWVRS
1260 1270 1280 1290 1300
KPSLGNRPSY DWSNVGRESI AVVHSIQETG YLELACCFRK GRWSTHYTDL
1310 1320 1330 1340 1350
EKIPALKVGQ FVHFQKGITE PRWGWRAAKP DSRGIITTVH ADGEVRVAFF
1360 1370 1380 1390 1400
GLPGLWRGDP ADLEVEPMFE VGEWVRLREG VSCWKSVGPG SVGVVHGVGY
1410 1420 1430 1440 1450
EGDEWDGTTS VSFCGEQERW AGPTSHLEKA KKLVVGQKTR VKLAVKQPRF
1460 1470 1480 1490 1500
GWSGHSHGSV GTISAIDADG KLRIYTPAGS KTWMLDPSEV ETIEEEELKI
1510 1520 1530 1540 1550
GDWVRVKASI TTPTYQWGEV NPSSTGVVHR MEDGDLCVSF CFLDRLWLCK
1560 1570 1580 1590 1600
AGELERIRPF RIGDRVKIKD GLVTPRWGWG METHASKGHV VGVDANGKLR
1610 1620
IKFLWREGRP WIGDPADIVL DETSG
Length:1,625
Mass (Da):178,216
Last modified:December 16, 2008 - v2
Checksum:i8F16ECA3DC32B9C4
GO

Sequence cautioni

The sequence CAC05430 differs from that shown. Reason: Erroneous gene model prediction.Curated
The sequence CAC05431 differs from that shown. Reason: Erroneous gene model prediction.Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
DQ315360 mRNA. Translation: ABC46683.1.
AL391710 Genomic DNA. Translation: CAC05430.1. Sequence problems.
AL391710 Genomic DNA. Translation: CAC05431.1. Sequence problems.
CP002688 Genomic DNA. Translation: AED91908.1.
RefSeqiNP_196857.2. NM_121356.3. [Q9FY48-1]
UniGeneiAt.32056.

Genome annotation databases

EnsemblPlantsiAT5G13530.1; AT5G13530.1; AT5G13530. [Q9FY48-1]
GeneIDi831197.
GrameneiAT5G13530.1; AT5G13530.1; AT5G13530.
KEGGiath:AT5G13530.

Keywords - Coding sequence diversityi

Alternative splicing

Cross-referencesi

Web resourcesi

PlantsUBQ

A functional genomics database for the ubiquitin/26S proteasome proteolytic pathway in plants

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
DQ315360 mRNA. Translation: ABC46683.1.
AL391710 Genomic DNA. Translation: CAC05430.1. Sequence problems.
AL391710 Genomic DNA. Translation: CAC05431.1. Sequence problems.
CP002688 Genomic DNA. Translation: AED91908.1.
RefSeqiNP_196857.2. NM_121356.3. [Q9FY48-1]
UniGeneiAt.32056.

3D structure databases

ProteinModelPortaliQ9FY48.
SMRiQ9FY48.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi16475. 10 interactors.
IntActiQ9FY48. 1 interactor.
STRINGi3702.AT5G13530.1.

PTM databases

iPTMnetiQ9FY48.

Proteomic databases

PaxDbiQ9FY48.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblPlantsiAT5G13530.1; AT5G13530.1; AT5G13530. [Q9FY48-1]
GeneIDi831197.
GrameneiAT5G13530.1; AT5G13530.1; AT5G13530.
KEGGiath:AT5G13530.

Organism-specific databases

TAIRiAT5G13530.

Phylogenomic databases

eggNOGiKOG0198. Eukaryota.
KOG0504. Eukaryota.
KOG4185. Eukaryota.
COG0666. LUCA.
HOGENOMiHOG000084006.
InParanoidiQ9FY48.
KOiK16279.
OMAiTEPRWGW.
OrthoDBiEOG0936005Q.
PhylomeDBiQ9FY48.

Enzyme and pathway databases

UniPathwayiUPA00143.

Miscellaneous databases

PROiQ9FY48.

Gene expression databases

ExpressionAtlasiQ9FY48. baseline and differential.
GenevisibleiQ9FY48. AT.

Family and domain databases

Gene3Di1.25.40.20. 1 hit.
3.30.40.10. 1 hit.
InterProiIPR002110. Ankyrin_rpt.
IPR020683. Ankyrin_rpt-contain_dom.
IPR011009. Kinase-like_dom.
IPR000719. Prot_kinase_dom.
IPR001841. Znf_RING.
IPR013083. Znf_RING/FYVE/PHD.
IPR017907. Znf_RING_CS.
[Graphical view]
PfamiPF12796. Ank_2. 2 hits.
PF00069. Pkinase. 1 hit.
PF14634. zf-RING_5. 1 hit.
[Graphical view]
PRINTSiPR01415. ANKYRIN.
SMARTiSM00248. ANK. 9 hits.
SM00184. RING. 1 hit.
[Graphical view]
SUPFAMiSSF48403. SSF48403. 1 hit.
SSF56112. SSF56112. 1 hit.
PROSITEiPS50297. ANK_REP_REGION. 1 hit.
PS50088. ANK_REPEAT. 5 hits.
PS50011. PROTEIN_KINASE_DOM. 1 hit.
PS00518. ZF_RING_1. 1 hit.
PS50089. ZF_RING_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiKEG_ARATH
AccessioniPrimary (citable) accession number: Q9FY48
Secondary accession number(s): Q27YP2, Q9FY47
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 16, 2008
Last sequence update: December 16, 2008
Last modified: November 30, 2016
This is version 124 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programPlant Protein Annotation Program

Miscellaneousi

Caution

The protein kinase domain is predicted to be catalytically inactive but PubMed:17194765 shows an in vitro activity.Curated

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Arabidopsis thaliana
    Arabidopsis thaliana: entries and gene names
  2. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  3. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.