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Protein

Regulator of G-protein signaling 20

Gene

RGS20

Organism
Homo sapiens (Human)
Status
Reviewed-Annotation score: Annotation score: 5 out of 5-Experimental evidence at protein leveli

Functioni

Inhibits signal transduction by increasing the GTPase activity of G protein alpha subunits thereby driving them into their inactive GDP-bound form. Binds selectively to G(z)-alpha and G(alpha)-i2 subunits, accelerates their GTPase activity and regulates their signaling activities. The G(z)-alpha activity is inhibited by the phosphorylation and palmitoylation of the G-protein. Negatively regulates mu-opioid receptor-mediated activation of the G-proteins (By similarity).By similarity1 Publication

GO - Molecular functioni

  • GTPase activator activity Source: ProtInc

GO - Biological processi

Keywordsi

Molecular functionSignal transduction inhibitor

Enzyme and pathway databases

ReactomeiR-HSA-418594. G alpha (i) signalling events.
R-HSA-418597. G alpha (z) signalling events.

Names & Taxonomyi

Protein namesi
Recommended name:
Regulator of G-protein signaling 20
Short name:
RGS20
Alternative name(s):
Gz-selective GTPase-activating protein
Short name:
G(z)GAP
Short name:
Gz-GAP
Regulator of G-protein signaling Z1
Regulator of Gz-selective protein signaling 1
Gene namesi
Name:RGS20
Synonyms:RGSZ1, ZGAP1
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresPrimatesHaplorrhiniCatarrhiniHominidaeHomo
Proteomesi
  • UP000005640 Componenti: Chromosome 8

Organism-specific databases

HGNCiHGNC:14600. RGS20.

Subcellular locationi

GO - Cellular componenti

  • cytoplasm Source: CACAO
  • cytoplasmic vesicle Source: GO_Central
  • nucleus Source: UniProtKB-SubCell
  • plasma membrane Source: GO_Central
  • trans-Golgi network Source: CACAO

Keywords - Cellular componenti

Cytoplasm, Membrane, Nucleus

Pathology & Biotechi

Organism-specific databases

DisGeNETi8601.
OpenTargetsiENSG00000147509.
PharmGKBiPA34373.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002042331 – 388Regulator of G-protein signaling 20Add BLAST388

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei315PhosphotyrosineBy similarity1

Post-translational modificationi

Fatty acylated. Heavily palmitoylated in the cysteine string motif (By similarity).By similarity
N- and O-glycosylated in synapsomal membranes.By similarity
Serine phosphorylated in synapsomal membranes.By similarity
Sumoylated with SUMO1 and SUMO2 in synaptosomes. The sumoylated forms act as a scaffold for sequestering mu-opioid receptor-activated G(alpha) subunits (By similarity).By similarity

Keywords - PTMi

Glycoprotein, Lipoprotein, Palmitate, Phosphoprotein, Ubl conjugation

Proteomic databases

MaxQBiO76081.
PaxDbiO76081.
PeptideAtlasiO76081.
PRIDEiO76081.

PTM databases

iPTMnetiO76081.
PhosphoSitePlusiO76081.
SwissPalmiO76081.

Expressioni

Tissue specificityi

Isoform 5 is expressed in brain at high levels in the caudate nucleus and temporal lobe.

Gene expression databases

BgeeiENSG00000147509.
CleanExiHS_RGS20.
ExpressionAtlasiO76081. baseline and differential.
GenevisibleiO76081. HS.

Interactioni

Subunit structurei

Forms a complex with G(alpha)z/i2 subunits and mu-opioid receptors; the formation of this complex results in mu-opioid receptor desensitization. Interacts with OPRM1 (By similarity).By similarity

Binary interactionsi

Show more details

Protein-protein interaction databases

BioGridi114161. 82 interactors.
IntActiO76081. 50 interactors.
MINTiMINT-3002244.
STRINGi9606.ENSP00000297313.

Structurei

3D structure databases

ProteinModelPortaliO76081.
SMRiO76081.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini262 – 378RGSPROSITE-ProRule annotationAdd BLAST117

Compositional bias

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Compositional biasi208 – 220Poly-CysAdd BLAST13

Phylogenomic databases

eggNOGiKOG3589. Eukaryota.
ENOG410YMJD. LUCA.
GeneTreeiENSGT00760000118903.
HOGENOMiHOG000233513.
HOVERGENiHBG013233.
InParanoidiO76081.
KOiK16449.
OMAiFRAQRYN.
OrthoDBiEOG091G0BDG.
PhylomeDBiO76081.
TreeFamiTF315837.

Family and domain databases

Gene3Di1.10.196.10. 2 hits.
InterProiView protein in InterPro
IPR016137. RGS.
IPR024066. RGS_subdom1.
PfamiView protein in Pfam
PF00615. RGS. 1 hit.
PRINTSiPR01301. RGSPROTEIN.
SMARTiView protein in SMART
SM00315. RGS. 1 hit.
SUPFAMiSSF48097. SSF48097. 1 hit.
PROSITEiView protein in PROSITE
PS50132. RGS. 1 hit.

Sequences (6)i

Sequence statusi: Complete.

This entry describes 6 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform 6 (identifier: O76081-1) [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
MPQLSQDNQE CLQKHFSRPS IWTQFLPLFR AQRYNTDIHQ ITENEGDLRA
60 70 80 90 100
VPDIKSFPPA QLPDSPAAPK LFGLLSSPLS SLARFFSHLL RRPPPEAPRR
110 120 130 140 150
RLDFSPLLPA LPAARLSRGH EELPGRLSLL LGAALALPGR PSGGRPLRPP
160 170 180 190 200
HPVAKPREED ATAGQSSPMP QMGSERMEMR KRQMPAAQDT PGAAPGQPGA
210 220 230 240 250
GSRGSNACCF CWCCCCSCSC LTVRNQEDQR PTIASHELRA DLPTWEESPA
260 270 280 290 300
PTLEEVNAWA QSFDKLMVTP AGRNAFREFL RTEFSEENML FWMACEELKK
310 320 330 340 350
EANKNIIEEK ARIIYEDYIS ILSPKEVSLD SRVREVINRN MVEPSQHIFD
360 370 380
DAQLQIYTLM HRDSYPRFMN SAVYKDLLQS LSEKSIEA
Length:388
Mass (Da):43,692
Last modified:October 18, 2001 - v4
Checksum:iF44796D271F1765F
GO
Isoform 1 (identifier: O76081-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     56-170: Missing.

Show »
Length:273
Mass (Da):31,486
Checksum:i8BF212DBAF70A97E
GO
Isoform 2 (identifier: O76081-3) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-208: Missing.
     209-220: CFCWCCCCSCSC → MKETSGLFLISS

Show »
Length:180
Mass (Da):21,010
Checksum:iA2F8633711953F26
GO
Isoform 3 (identifier: O76081-4) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-236: Missing.
     237-247: ELRADLPTWEE → MKETSGLFLIS

Show »
Length:152
Mass (Da):17,735
Checksum:iE0554569F8C0CEA7
GO
Isoform 4 (identifier: O76081-5) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     3-55: Missing.
     56-170: Missing.

Show »
Length:220
Mass (Da):25,177
Checksum:iB5EA61FF181DA67C
GO
Isoform 5 (identifier: O76081-6) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     1-55: MPQLSQDNQE...GDLRAVPDIK → MRTADGGEPAGASSPAGRVDGGL
     56-170: Missing.

Show »
Length:241
Mass (Da):27,060
Checksum:i776410A4D698D622
GO

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Alternative sequenceiVSP_0056981 – 236Missing in isoform 3. 1 PublicationAdd BLAST236
Alternative sequenceiVSP_0056971 – 208Missing in isoform 2. 1 PublicationAdd BLAST208
Alternative sequenceiVSP_0056941 – 55MPQLS…VPDIK → MRTADGGEPAGASSPAGRVD GGL in isoform 5. 2 PublicationsAdd BLAST55
Alternative sequenceiVSP_0056953 – 55Missing in isoform 4. 2 PublicationsAdd BLAST53
Alternative sequenceiVSP_00569656 – 170Missing in isoform 1, isoform 4 and isoform 5. 5 PublicationsAdd BLAST115
Alternative sequenceiVSP_005699209 – 220CFCWC…CSCSC → MKETSGLFLISS in isoform 2. 1 PublicationAdd BLAST12
Alternative sequenceiVSP_005700237 – 247ELRADLPTWEE → MKETSGLFLIS in isoform 3. 1 PublicationAdd BLAST11

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF060877 mRNA. Translation: AAC62009.2.
AF366054 mRNA. Translation: AAK54122.1.
AF366055 mRNA. Translation: AAK54123.1.
AF366056 mRNA. Translation: AAK54124.1.
AF366057 mRNA. Translation: AAK54125.1.
AF074979 mRNA. Translation: AAC62013.1.
AF493940 mRNA. Translation: AAM12654.1.
BC015614 mRNA. Translation: AAH15614.2.
BC063490 mRNA. Translation: AAH63490.1.
AY046538 mRNA. Translation: AAL03971.1.
CCDSiCCDS6155.1. [O76081-1]
CCDS6156.1. [O76081-6]
CCDS69482.1. [O76081-2]
RefSeqiNP_001273602.1. NM_001286673.1. [O76081-2]
NP_001273603.1. NM_001286674.1. [O76081-4]
NP_001273604.1. NM_001286675.1. [O76081-3]
NP_003693.2. NM_003702.4. [O76081-6]
NP_733466.1. NM_170587.3. [O76081-1]
XP_011515924.1. XM_011517622.2.
UniGeneiHs.368733.

Genome annotation databases

EnsembliENST00000276500; ENSP00000276500; ENSG00000147509. [O76081-6]
ENST00000297313; ENSP00000297313; ENSG00000147509. [O76081-1]
ENST00000344277; ENSP00000344630; ENSG00000147509. [O76081-2]
GeneIDi8601.
KEGGihsa:8601.
UCSCiuc003xrp.5. human. [O76081-1]

Keywords - Coding sequence diversityi

Alternative splicing

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.

Entry informationi

Entry nameiRGS20_HUMAN
AccessioniPrimary (citable) accession number: O76081
Secondary accession number(s): Q96BG9
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 20, 2001
Last sequence update: October 18, 2001
Last modified: June 7, 2017
This is version 162 of the entry and version 4 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program
DisclaimerAny medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Human chromosome 8
    Human chromosome 8: entries, gene names and cross-references to MIM
  2. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot