CPLM 1.0 - Compendium of Protein Lysine Modification
TagContent
CPLM ID CPLM-020770
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 Endoplasmic reticulum resident protein 44 
Protein Synonyms/Alias
 ER protein 44; ERp44; Thioredoxin domain-containing protein 4 
Gene Name
 Erp44 
Gene Synonyms/Alias
 Kiaa0573; Txndc4 
Created Date
 July 27, 2013 
Organism
 Mus musculus (Mouse) 
NCBI Taxa ID
 10090 
Lysine Modification
Position
Peptide
Type
References
200SAFGDLSKPERYNGDacetylation[1]
303FLHADCDKFRHPLLHacetylation[1]
345VLIPGKLKQFVFDLHacetylation[1]
Reference
 [1] Quantitative acetylome analysis reveals the roles of SIRT1 in regulating diverse substrates and cellular pathways.
 Chen Y, Zhao W, Yang JS, Cheng Z, Luo H, Lu Z, Tan M, Gu W, Zhao Y.
 Mol Cell Proteomics. 2012 Oct;11(10):1048-62. [PMID: 22826441
Functional Description
 Mediates thiol-dependent retention in the early secretory pathway, forming mixed disulfides with substrate proteins through its conserved CRFS motif. Inhibits the calcium channel activity of ITPR1. May have a role in the control of oxidative protein folding in the endoplasmic reticulum. Required to retain ERO1L and ERO1LB in the endoplasmic reticulum (By similarity). 
Sequence Annotation
 DOMAIN 30 138 Thioredoxin.
 REGION 236 285 Interaction with ITPR1.
 MOTIF 403 406 Prevents secretion from ER (Potential).
 DISULFID 189 241 By similarity.
 DISULFID 301 318 By similarity.  
Keyword
 Chaperone; Complete proteome; Disulfide bond; Endoplasmic reticulum; Reference proteome; Signal. 
Sequence Source
 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 
Protein Length
 406 AA 
Protein Sequence
MNPAVFLSLA DLRCSLLLLV TSIFTPITAE IASLDSENID EILNNADVAL VNFYADWCRF 60
SQMLHPIFEE ASDVIKEEYP DKNQVVFARV DCDQHSDIAQ RYRISKYPTL KLFRNGMMMK 120
REYRGQRSVK ALADYIRQQK SNPVHEIQSL DEVTNLDRSK RNIIGYFEQK DSENYRVFER 180
VASILHDDCA FLSAFGDLSK PERYNGDNVI YKPPGRSAPD MVYLGSMTNF DVTYNWIQDK 240
CVPLVREITF ENGEELTEEG LPFLILFHMK DDTESLEIFQ NEVARQLISE KGTINFLHAD 300
CDKFRHPLLH IQKTPADCPV IAIDSFRHMY VFGDFKDVLI PGKLKQFVFD LHSGKLHREF 360
HHGPDPTDTA PGEQDQDVAS SPPESSFQKL APSEYRYTLL RDRDEL 406 
Gene Ontology
 GO:0009986; C:cell surface; IDA:MGI.
 GO:0005788; C:endoplasmic reticulum lumen; ISS:UniProtKB.
 GO:0005789; C:endoplasmic reticulum membrane; ISS:UniProtKB.
 GO:0005793; C:endoplasmic reticulum-Golgi intermediate compartment; IEA:Compara.
 GO:0003756; F:protein disulfide isomerase activity; ISS:UniProtKB.
 GO:0045454; P:cell redox homeostasis; IEA:InterPro.
 GO:0009100; P:glycoprotein metabolic process; ISS:UniProtKB.
 GO:0006986; P:response to unfolded protein; ISS:UniProtKB. 
Interpro
 IPR012336; Thioredoxin-like_fold.
 IPR013766; Thioredoxin_domain. 
Pfam
 PF00085; Thioredoxin 
SMART
  
PROSITE
 PS00014; ER_TARGET
 PS51352; THIOREDOXIN_2 
PRINTS