Descriptions

E3 ligases mediate the covalent attachment of ubiquitin to target proteins thereby enabling ubiquitin dependent signaling. Baculoviral IAP repeat-containing protein 2 (BIRC2) protein is an E3 ligase that modulates diverse biological processes such as cell survival, proliferation, and migration. Full-length BIRC2 fails to associate with E2, but CARD-deleted mutant BIRC2 readily interacts with E2. The CARD inhibits activation of BIRC2’s E3 activity by preventing RING dimerization, E2 binding, and E2 activation. In addition, BIRC2 lacking only the BIR3 domain readily associates with the E2, representing that the CARD and BIR3 domains are both required for inhibition of E3 activity of BIRC2.

Autoinhibitory domains (AIDs)

Target domain

564-609 (RING domain)

Relief mechanism

Ligand binding

Assay

Target domain

564-609 (RING domain)

Relief mechanism

Ligand binding

Assay

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

1 structures for Q90660

Entry ID Method Resolution Chain Position Source
AF-Q90660-F1 Predicted AlphaFoldDB

No variants for Q90660

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q90660

No associated diseases with Q90660

7 regional properties for Q90660

Type Name Position InterPro Accession
domain CARD domain 446 - 536 IPR001315
repeat BIR repeat 28 - 99 IPR001370-1
repeat BIR repeat 174 - 244 IPR001370-2
repeat BIR repeat 260 - 331 IPR001370-3
domain Zinc finger, RING-type 564 - 599 IPR001841
domain BIRC2/BIRC3, UBA domain 384 - 430 IPR041933
domain BIRC2/3-like, UBA domain 381 - 433 IPR048875

Functions

Description
EC Number
Subcellular Localization
  • Nucleus
  • Cytoplasm
  • Predominantly nuclear
  • According to PubMed:9372964 it is cytoplasmic
PANTHER Family
PANTHER Subfamily
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

2 GO annotations of cellular component

Name Definition
cytoplasm The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
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.

3 GO annotations of molecular function

Name Definition
cysteine-type endopeptidase inhibitor activity involved in apoptotic process Binds to and stops, prevents or reduces the activity of a cysteine-type endopeptidase involved in the apoptotic process.
metal ion binding Binding to a metal ion.
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

5 GO annotations of biological process

Name Definition
apoptotic process A programmed cell death process which begins when a cell receives an internal (e.g. DNA damage) or external signal (e.g. an extracellular death ligand), and proceeds through a series of biochemical events (signaling pathway phase) which trigger an execution phase. The execution phase is the last step of an apoptotic process, and is typically characterized by rounding-up of the cell, retraction of pseudopodes, reduction of cellular volume (pyknosis), chromatin condensation, nuclear fragmentation (karyorrhexis), plasma membrane blebbing and fragmentation of the cell into apoptotic bodies. When the execution phase is completed, the cell has died.
negative regulation of apoptotic process Any process that stops, prevents, or reduces the frequency, rate or extent of cell death by apoptotic process.
negative regulation of necroptotic process Any process that decreases the rate, frequency or extent of a necroptotic process, a necrotic cell death process that results from the activation of endogenous cellular processes, such as signaling involving death domain receptors or Toll-like receptors.
positive regulation of protein ubiquitination Any process that activates or increases the frequency, rate or extent of the addition of ubiquitin groups to a protein.
regulation of cell cycle Any process that modulates the rate or extent of progression through the cell cycle.

7 homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
A1E2V0 BIRC3 Baculoviral IAP repeat-containing protein 3 Canis lupus familiaris (Dog) (Canis familiaris) SS
Q96P09 BIRC8 Baculoviral IAP repeat-containing protein 8 Homo sapiens (Human) PR
Q13489 BIRC3 Baculoviral IAP repeat-containing protein 3 Homo sapiens (Human) SS
Q13490 BIRC2 Baculoviral IAP repeat-containing protein 2 Homo sapiens (Human) EV
O08863 Birc3 Baculoviral IAP repeat-containing protein 3 Mus musculus (Mouse) SS
Q62210 Birc2 Baculoviral IAP repeat-containing protein 2 Mus musculus (Mouse) SS
O62640 PIAP Putative inhibitor of apoptosis Sus scrofa (Pig) SS
10 20 30 40 50 60
MNIMDSSPLL ASVMKQNAHC GELKYDFSCE LYRMSTFSTF PVNVPVSERR LARAGFYYTG
70 80 90 100 110 120
VQDKVKCFSC GLVLDNWQPG DNAMEKHKQV YPSCSFVQNM LSLNNLGLST HSAFSPLVAS
130 140 150 160 170 180
NLSPSLRSMT LSPSFEQVGY FSGSFSSFPR DPVTTRAAED LSHLRSKLQN PSMSTEEARL
190 200 210 220 230 240
RTSHAWPLMC LWPAEVAKAG LDDLGTADKV ACVNCGVKLS NWEPKDNAMS EHRRHFPNCP
250 260 270 280 290 300
FVENLMRDQP SFNVSNVTMQ THEARVKTFI NWPTRIPVQP EQLADAGFYY VGRNDDVKCF
310 320 330 340 350 360
CCDGGLRCWE SGDDPWIEHA KWFPRCEYLL RVKGGEFVSQ VQARFPHLLW NSSCTTSDKP
370 380 390 400 410 420
VDENMDPIIH FEPGESPSED AIMMNTPVVK AALEMGFSRR LIKQTVQSKI LATEENYKTV
430 440 450 460 470 480
NDLVSELLTA EDEKREEEKE RQFEEVASDD LSLIRKNRMA LFQRLTSVLP ILGSLLSAKV
490 500 510 520 530 540
ITELEHDVIK QTTQTPSQAR ELIDTVLVKG NAAASIFRNC LKDFDPVLYK DLFVEKSMKY
550 560 570 580 590 600
VPTEDVSGLP MEEQLRRLQE ERTCKVCMDK EVSIVFIPCG HLVVCKECAP SLRKCPICRG
610
TIKGTVRTFL S