Descriptions

The IpaH family of novel E3 ligase (NEL) enzymes occur in a variety of pathogenic and commensal bacteria that interact with eukaryotic hosts. The leucine-rich repeat (LRR) substrate recognition domains of different IpaH enzymes autoinhibit the enzymatic activity of the adjacent catalytic novel E3 ligase domain. Removal of the LRR domain increases autoubiquitination and potentiates free polyubiquitin chain synthesis.

Autoinhibitory domains (AIDs)

Target domain

287-497 (E3 ligase domain)

Relief mechanism

Assay

Mutagenesis experiment

Accessory elements

No accessory elements

Autoinhibited structure

Activated structure

2 structures for Q83RJ4

Entry ID Method Resolution Chain Position Source
3CVR X-ray 280 A A 1-571 PDB
AF-Q83RJ4-F1 Predicted AlphaFoldDB

No variants for Q83RJ4

Variant ID(s) Position Change Description Diseaes Association Provenance
No variants for Q83RJ4

No associated diseases with Q83RJ4

2 regional properties for Q83RJ4

Type Name Position InterPro Accession
domain Novel E3 ligase domain 261 - 471 IPR029487
domain LRR-containing bacterial E3 ligase, N-terminal 4 - 48 IPR032674

Functions

Description
EC Number 2.3.2.27 Aminoacyltransferases
Subcellular Localization
  • Secreted
  • Host cytoplasm
  • Secreted via Mxi-Spa type III secretion system (T3SS), and delivered into the host cytoplasm
PANTHER Family PTHR47114 FAMILY NOT NAMED
PANTHER Subfamily PTHR47114:SF2 OLIGODENDROCYTE-MYELIN GLYCOPROTEIN
PANTHER Protein Class
PANTHER Pathway Category No pathway information available

2 GO annotations of cellular component

Name Definition
extracellular region The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.
host cell cytoplasm The cytoplasm of a host cell.

1 GO annotations of molecular function

Name Definition
ubiquitin-protein transferase activity Catalysis of the transfer of ubiquitin from one protein to another via the reaction X-Ub + Y --> Y-Ub + X, where both X-Ub and Y-Ub are covalent linkages.

No GO annotations of biological process

Name Definition
No GO annotations for biological process

No homologous proteins in AiPD

UniProt AC Gene Name Protein Name Species Evidence Code
No homologous proteins
10 20 30 40 50 60
MSIMLPINNN FSLSQNSFYN TISGTYADYF SAWDKWEKQA LPGENRNEAV SLLKECLINQ
70 80 90 100 110 120
FSELQLNRLN LSSLPDNLPP QITVLEITQN ALISLPELPA SLEYLDACDN RLSTLPELPA
130 140 150 160 170 180
SLKHLDVDNN QLTMLPELPA LLEYINADNN QLTMLPELPT SLEVLSVRNN QLTFLPELPE
190 200 210 220 230 240
SLEALDVSTN LLESLPAVPV RNHHSEETEI FFRCRENRIT HIPENILSLD PTCTIILEDN
250 260 270 280 290 300
PLSSRIRESL SQQTAQPDYH GPRIYFSMSD GQQNTLHRPL ADAVTAWFPE NKQSDVSQIW
310 320 330 340 350 360
HAFEHEEHAN TFSAFLDRLS DTVSARNTSG FREQVAAWLE KLSTSAELRQ QSFAVAADAT
370 380 390 400 410 420
ESCEDRVALT WNNLRKTLLV HQASEGLFDN DTGALLSLGR EMFRLEILED IARDKVRTLH
430 440 450 460 470 480
FVDEIEVYLA FQTMLAEKLQ LSTAVKEMRF YGVSGVTAND LRTAEAMVRS REENEFTDWF
490 500 510 520 530 540
SLWGPWHAVL KRTEADRWAQ AEEQKYEMLE NEYSQRVADR LKASGLSGDA DAEREAGAQV
550 560 570
MRETEQQIYR QVTDEVLALR LSENGSQLHH S