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 BRE1B

Gene

Rnf40

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Component of the RNF20/40 E3 ubiquitin-protein ligase complex that mediates monoubiquitination of 'Lys-120' of histone H2B (H2BK120ub1). H2BK120ub1 gives a specific tag for epigenetic transcriptional activation and is also prerequisite for histone H3 'Lys-4' and 'Lys-79' methylation (H3K4me and H3K79me, respectively). It thereby plays a central role in histone code and gene regulation. The RNF20/40 complex forms a H2B ubiquitin ligase complex in cooperation with the E2 enzyme UBE2A or UBE2B; reports about the cooperation with UBE2E1/UBCH are contradictory. Required for transcriptional activation of Hox genes.By similarity

Catalytic activityi

S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-cysteine + N6-ubiquitinyl-[acceptor protein]-L-lysine.1 Publication

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.

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri949 – 988RING-typePROSITE-ProRule annotationAdd BLAST40

GO - Molecular functioni

  • metal ion binding Source: UniProtKB-KW
  • mRNA 3'-UTR binding Source: Ensembl
  • protein complex binding Source: RGD
  • protein homodimerization activity Source: Ensembl
  • syntaxin-1 binding Source: RGD
  • ubiquitin conjugating enzyme binding Source: RGD
  • ubiquitin protein ligase binding Source: Ensembl
  • ubiquitin-protein transferase activity Source: RGD

GO - Biological processi

Keywordsi

Molecular functionChromatin regulator, Transferase
Biological processUbl conjugation pathway
LigandMetal-binding, Zinc

Enzyme and pathway databases

BRENDAi2.3.2.B10. 5301.
6.3.2.19. 5301.
ReactomeiR-RNO-8866654. E3 ubiquitin ligases ubiquitinate target proteins.
UniPathwayiUPA00143.

Names & Taxonomyi

Protein namesi
Recommended name:
E3 ubiquitin-protein ligase BRE1B (EC:2.3.2.271 Publication)
Short name:
BRE1-B
Alternative name(s):
RING finger protein 40
RING-type E3 ubiquitin transferase BRE1BCurated
Syntaxin-1-interacting RING finger protein
Short name:
Protein staring
Gene namesi
Name:Rnf40
Synonyms:Bre1b
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Chromosome 1

Organism-specific databases

RGDi628638. Rnf40.

Subcellular locationi

  • Nucleus By similarity

GO - Cellular componenti

  • axon terminus Source: RGD
  • cytosol Source: RGD
  • extrinsic component of membrane Source: RGD
  • HULC complex Source: UniProtKB
  • neuron projection Source: RGD
  • nucleoplasm Source: Ensembl
  • protein complex Source: RGD

Keywords - Cellular componenti

Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00000558431 – 1002E3 ubiquitin-protein ligase BRE1BAdd BLAST1002

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei20N6-acetyllysineBy similarity1
Modified residuei42PhosphoserineBy similarity1
Modified residuei356N6-acetyllysineBy similarity1
Modified residuei518N6-acetyllysineBy similarity1
Cross-linki579Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)By similarity
Cross-linki580Glycyl lysine isopeptide (Lys-Gly) (interchain with G-Cter in SUMO2)By similarity
Modified residuei585PhosphoserineCombined sources1
Modified residuei586PhosphoserineCombined sources1

Keywords - PTMi

Acetylation, Isopeptide bond, Phosphoprotein, Ubl conjugation

Proteomic databases

PaxDbiQ8CJB9.
PRIDEiQ8CJB9.

PTM databases

iPTMnetiQ8CJB9.
PhosphoSitePlusiQ8CJB9.

Expressioni

Tissue specificityi

Ubiquitously expressed. Expressed in brain, testis, heart, liver and kidney. Weakly expressed in lung, spleen and skeletal muscle (at protein level).1 Publication

Gene expression databases

BgeeiENSRNOG00000018840.
GenevisibleiQ8CJB9. RN.

Interactioni

Subunit structurei

Component of the RNF20/40 complex (also known as BRE1 complex) probably composed of 2 copies of RNF20/BRE1A and 2 copies of RNF40/BRE1B. Interacts with UBE2E1/UBCH6. Interacts with RB1 and WAC (By similarity). May interact with STX1A.By similarity

Binary interactionsi

Show more details

GO - Molecular functioni

  • protein complex binding Source: RGD
  • protein homodimerization activity Source: Ensembl
  • syntaxin-1 binding Source: RGD
  • ubiquitin conjugating enzyme binding Source: RGD
  • ubiquitin protein ligase binding Source: Ensembl

Protein-protein interaction databases

IntActiQ8CJB9. 2 interactors.
STRINGi10116.ENSRNOP00000025500.

Structurei

3D structure databases

ProteinModelPortaliQ8CJB9.
SMRiQ8CJB9.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Coiled coil

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Coiled coili55 – 91Sequence analysisAdd BLAST37
Coiled coili190 – 378Sequence analysisAdd BLAST189
Coiled coili438 – 526Sequence analysisAdd BLAST89
Coiled coili628 – 947Sequence analysisAdd BLAST320

Sequence similaritiesi

Belongs to the BRE1 family.Curated

Zinc finger

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Zinc fingeri949 – 988RING-typePROSITE-ProRule annotationAdd BLAST40

Keywords - Domaini

Coiled coil, Zinc-finger

Phylogenomic databases

eggNOGiKOG0978. Eukaryota.
ENOG410Y5C6. LUCA.
GeneTreeiENSGT00390000002866.
HOGENOMiHOG000231526.
HOVERGENiHBG080312.
InParanoidiQ8CJB9.
KOiK10696.
OMAiQRVYSRG.
OrthoDBiEOG091G01SA.
PhylomeDBiQ8CJB9.
TreeFamiTF323183.

Family and domain databases

Gene3Di3.30.40.10. 1 hit.
InterProiView protein in InterPro
IPR001841. Znf_RING.
IPR013083. Znf_RING/FYVE/PHD.
IPR017907. Znf_RING_CS.
SMARTiView protein in SMART
SM00184. RING. 1 hit.
PROSITEiView protein in PROSITE
PS00518. ZF_RING_1. 1 hit.
PS50089. ZF_RING_2. 1 hit.

Sequencei

Sequence statusi: Complete.

Q8CJB9-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSGLSNKRAA GDGGSGPPEK KLNREEKTTT TLIEPIRLGG ISSTEEMDSK
60 70 80 90 100
VLQFKNKKLA ERLEQRQACE DELRERIEKL EKRQATDDAT LLIVNRYWAQ
110 120 130 140 150
LDETVEALLQ CYENQRELSS SGTEVPGCQE GLTRDVIPRT DPGTSDLREP
160 170 180 190 200
LPMQFRAPLS EPALAFVVAL GASSCEEVEL QLQGRMEFSK AAVSRVVEAS
210 220 230 240 250
DRLQRQVEEL CQRVYSRGDS EAPGEVARAR TRELGRENRR LQDLATQLQE
260 270 280 290 300
KHHRISLEYS ELQDKVTSTE TKVLEMETTV EDLQWDIEKL RKREQKLNKH
310 320 330 340 350
LAEALEQLNS GYYVSGSSTG FQGGQITLSM QKFEMLNAEL EENQELANSR
360 370 380 390 400
MAELEKLQAE LQGAVRTNER LKVALRSLPE EVVRETGEYR MLQAQFSLLY
410 420 430 440 450
NESLQVKTQL DEARGLLLAS KNSHLRHIEH MESDELGLQK KLRTEVIQLE
460 470 480 490 500
DTLAQVRKEY EMLRIEFEQN LAANEQAGPI NREMRHLISS LQNHNHQLKG
510 520 530 540 550
DAQRYKRKLR EVQAEIGKLR AQASGSSHCG PNLSHPDDSG LNALAPGKED
560 570 580 590 600
SGPGPGGTPD SKKELALVAG ATSVASSVKK EELVSSEDDA QALAPGTQGL
610 620 630 640 650
PSRGREPEAR PKRELREREG PSLGPPPAAS TLSRADREKA KAEEARRKES
660 670 680 690 700
ELLKGLRAEL KKAQESQKEM KLLLDMYKSA PKEQRDKVQL MAAERKAKAE
710 720 730 740 750
VDELRSRIRD LEERDRRESK KIADEDALRR IRQAEEQIEH LQRKLGATKQ
760 770 780 790 800
EEEALLSEMD VTGQAFEDMQ EQNGRLLQQL REKDDANFKL MSERIKANQI
810 820 830 840 850
HKLLREEKDE LGEQVLGLKS QVDAQLLTVQ KLEEKERALQ GSLGGVEKEL
860 870 880 890 900
TLRSQALELN KRKAVEAAQL AEDLKVQLEH VQTRLREIQP CLAESRAARE
910 920 930 940 950
KESFNLKRAQ EDISRLRRKL EKQRKVEVYA DADEILQEEI KEYKARLTCP
960 970 980 990 1000
CCNTRKKDAV LTKCFHVFCF ECVRGRYEAR QRKCPKCNAA FGAHDFHRVY

IS
Length:1,002
Mass (Da):113,841
Last modified:March 1, 2003 - v1
Checksum:iEFF371C06B52D231
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF352815 mRNA. Translation: AAN16401.1.
RefSeqiNP_703201.1. NM_153471.1.
UniGeneiRn.162466.

Genome annotation databases

EnsembliENSRNOT00000025499; ENSRNOP00000025500; ENSRNOG00000018840.
GeneIDi266712.
KEGGirno:266712.
UCSCiRGD:628638. rat.

Similar proteinsi

Entry informationi

Entry nameiBRE1B_RAT
AccessioniPrimary (citable) accession number: Q8CJB9
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 20, 2005
Last sequence update: March 1, 2003
Last modified: August 30, 2017
This is version 115 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Caution

Was originally thought to be cytoplasmic and membrane-associated and to mediate ubiquitination and subsequent degradation of STX1A.1 Publication

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families