Descriptions

E3 ubiquitin-protein ligase ARIH1 is an E3 ubiquitin-protein ligase, which catalyzes ubiquitination of target proteins together with ubiquitin-conjugating enzyme E2 UBE2L3, and acts as an atypical E3 ubiquitin-protein ligase by working together with cullin-RING ubiquitin ligase (CRL) complexes and initiating ubiquitination of CRL substrates. ARIH1 is autoinhibited by the ariadne domain, which masks the second RING-type zinc finger that contains the active site and inhibits the E3 activity. The inhibition is relieved upon binding to neddylated cullin-RING ubiquitin ligase complexes, which activate the E3 ligase activity of ARIH1.

Autoinhibitory domains (AIDs)

Target domain

223-294 (RING2 domain)

Relief mechanism

Partner binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for Q94981

Entry ID Method Resolution Chain Position Source
AF-Q94981-F1 Predicted AlphaFoldDB

No variants for Q94981

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q94981

No associated diseases with Q94981

9 regional properties for Q94981

Type Name Position InterPro Accession
domain AGC-kinase, C-terminal 917 - 984 IPR000961
active_site Serine/threonine-protein kinase, active site 778 - 790 IPR008271
domain HR1 rho-binding domain 33 - 110 IPR011072-1
domain HR1 rho-binding domain 121 - 204 IPR011072-2
domain HR1 rho-binding domain 204 - 285 IPR011072-3
binding_site Protein kinase, ATP binding site 663 - 686 IPR017441
domain Protein kinase, C-terminal 938 - 979 IPR017892
domain Serine/threonine-protein kinase N, first HR1 domain 42 - 107 IPR037313
domain Serine/threonine-protein kinase N, C2 domain 390 - 473 IPR037784

Functions

Description
EC Number 2.3.2.31 Aminoacyltransferases
Subcellular Localization
  • Cytoplasm
  • Nucleus
  • Mainly cytoplasmic
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

4 GO annotations of cellular component

Name Definition
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
cytosol The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
nucleus A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
ubiquitin ligase complex A protein complex that includes a ubiquitin-protein ligase and enables ubiquitin protein ligase activity. The complex also contains other proteins that may confer substrate specificity on the complex.

3 GO annotations of molecular function

Name Definition
ubiquitin conjugating enzyme binding Binding to a ubiquitin conjugating enzyme, any of the E2 proteins.
ubiquitin protein ligase activity Catalysis of the transfer of ubiquitin to a substrate protein via the reaction X-ubiquitin + S -> X + S-ubiquitin, where X is either an E2 or E3 enzyme, the X-ubiquitin linkage is a thioester bond, and the S-ubiquitin linkage is an amide bond
zinc ion binding Binding to a zinc ion (Zn).

9 GO annotations of biological process

Name Definition
endoplasmic reticulum organization A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the endoplasmic reticulum.
oogenesis The complete process of formation and maturation of an ovum or female gamete from a primordial female germ cell. Examples of this process are found in Mus musculus and Drosophila melanogaster.
positive regulation of neurogenesis Any process that activates or increases the frequency, rate or extent of neurogenesis, the generation of cells within the nervous system.
positive regulation of proteasomal protein catabolic process Any process that activates or increases the frequency, rate or extent of proteasomal protein catabolic process.
positive regulation of proteasomal ubiquitin-dependent protein catabolic process Any process that activates or increases the frequency, rate or extent of the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of ubiquitin, and mediated by the proteasome.
protein monoubiquitination Addition of a single ubiquitin group to a protein.
protein polyubiquitination Addition of multiple ubiquitin groups to a protein, forming a ubiquitin chain.
protein ubiquitination The process in which one or more ubiquitin groups are added to a protein.
ubiquitin-dependent protein catabolic process The chemical reactions and pathways resulting in the breakdown of a protein or peptide by hydrolysis of its peptide bonds, initiated by the covalent attachment of a ubiquitin group, or multiple ubiquitin groups, to the protein.

12 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
A2VEA3 ARIH1 E3 ubiquitin-protein ligase ARIH1 Bos taurus (Bovine) SS
Q7KTX7 park E3 ubiquitin-protein ligase parkin Drosophila melanogaster (Fruit fly) SS
O76924 ari-2 Potential E3 ubiquitin-protein ligase ariadne-2 Drosophila melanogaster (Fruit fly) SS
Q9Y4X5 ARIH1 E3 ubiquitin-protein ligase ARIH1 Homo sapiens (Human) EV
O95376 ARIH2 E3 ubiquitin-protein ligase ARIH2 Homo sapiens (Human) EV
Q9Z1K5 Arih1 E3 ubiquitin-protein ligase ARIH1 Mus musculus (Mouse) SS
Q9Z1K6 Arih2 E3 ubiquitin-protein ligase ARIH2 Mus musculus (Mouse) SS
O01965 ari-1.1 E3 ubiquitin-protein ligase ari-1.1 Caenorhabditis elegans SS
Q22431 ari-2 Potential E3 ubiquitin-protein ligase ariadne-2 Caenorhabditis elegans SS
B1H1E4 arih1 E3 ubiquitin-protein ligase arih1 Xenopus tropicalis (Western clawed frog) (Silurana tropicalis) SS
Q6NW85 arih1l E3 ubiquitin-protein ligase arih1l Danio rerio (Zebrafish) (Brachydanio rerio) SS
Q6PFJ9 arih1 E3 ubiquitin-protein ligase arih1 Danio rerio (Zebrafish) (Brachydanio rerio) SS
10 20 30 40 50 60
MDSDNDNDFC DNVDSGNVSS GDDGDDDFGM EVDLPSSADR QMDQDDYQYK VLTTDEIVQH
70 80 90 100 110 120
QREIIDEANL LLKLPTPTTR ILLNHFKWDK EKLLEKYFDD NTDEFFKCAH VINPFNATEA
130 140 150 160 170 180
IKQKTSRSQC EECEICFSQL PPDSMAGLEC GHRFCMPCWH EYLSTKIVAE GLGQTISCAA
190 200 210 220 230 240
HGCDILVDDV TVANLVTDAR VRVKYQQLIT NSFVECNQLL RWCPSVDCTY AVKVPYAEPR
250 260 270 280 290 300
RVHCKCGHVF CFACGENWHD PVKCRWLKKW IKKCDDDSET SNWIAANTKE CPRCSVTIEK
310 320 330 340 350 360
DGGCNHMVCK NQNCKNEFCW VCLGSWEPHG SSWYNCNRYD EDEAKTARDA QEKLRSSLAR
370 380 390 400 410 420
YLHYYNRYMN HMQSMKFENK LYASVKQKME EMQQHNMSWI EVQFLKKAVD ILCQCRQTLM
430 440 450 460 470 480
YTYVFAYYLK KNNQSMIFED NQKDLESATE MLSEYLERDI TSENLADIKQ KVQDKYRYCE
490 500
KRCSVLLKHV HEGYDKEWWE YTE