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UniProtKB - Q99543 (DNJC2_HUMAN)

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Protein

DnaJ homolog subfamily C member 2

Gene

DNAJC2

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

Functioni

Acts both as a chaperone in the cytosol and as a chromatin regulator in the nucleus. When cytosolic, acts as a molecular chaperone: component of the ribosome-associated complex (RAC), a complex involved in folding or maintaining nascent polypeptides in a folding-competent state. In the RAC complex, stimulates the ATPase activity of the ribosome-associated pool of Hsp70-type chaperones HSPA14 that bind to the nascent polypeptide chain. When nuclear, mediates the switching from polycomb-repressed genes to an active state: specifically recruited at histone H2A ubiquitinated at 'Lys-119' (H2AK119ub), and promotes the displacement of the polycomb PRC1 complex from chromatin, thereby facilitating transcription activation. Specifically binds DNA sequence 5'-GTCAAGC-3'.3 Publications

Miscellaneous

Constitutes a myeloid leukemia-associated antigen and might be a target for leukemia T-cell therapy.

GO - Molecular functioni

  • ATPase activator activity Source: Reactome
  • chromatin binding Source: UniProtKB
  • DNA binding Source: InterPro
  • histone binding Source: UniProtKB
  • Hsp70 protein binding Source: UniProtKB
  • RNA binding Source: UniProtKB
  • ubiquitin binding Source: UniProtKB
Complete GO annotation...

GO - Biological processi

Complete GO annotation...

Keywordsi

Molecular functionActivator, Chaperone, Chromatin regulator
Biological processTranscription, Transcription regulation

Enzyme and pathway databases

ReactomeiR-HSA-3371453. Regulation of HSF1-mediated heat shock response.

Names & Taxonomyi

Protein namesi
Recommended name:
DnaJ homolog subfamily C member 2
Alternative name(s):
M-phase phosphoprotein 11
Zuotin-related factor 1
Cleaved into the following chain:
DnaJ homolog subfamily C member 2, N-terminally processed
Gene namesi
Name:DNAJC2
Synonyms:MPHOSPH11, MPP11, ZRF1
OrganismiHomo sapiens (Human)
Taxonomic identifieri9606 [NCBI]
Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo
Proteomesi
  • UP000005640 Componenti: Chromosome 7

Organism-specific databases

HGNCiHGNC:13192. DNAJC2.

Subcellular locationi

GO - Cellular componenti

  • cytoplasm Source: UniProtKB
  • cytosol Source: UniProtKB
  • nuclear membrane Source: HPA
  • nucleoplasm Source: Reactome
  • nucleus Source: UniProtKB
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm, Nucleus

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi512 – 513HQ → AA: Loss of function. 1 Publication2

Organism-specific databases

DisGeNETi27000.
OpenTargetsiENSG00000105821.
PharmGKBiPA162383835.

Polymorphism and mutation databases

BioMutaiDNAJC2.
DMDMi296439472.

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00004257521 – 621DnaJ homolog subfamily C member 2Add BLAST621
Initiator methionineiRemoved; alternate1 Publication
ChainiPRO_00000711232 – 621DnaJ homolog subfamily C member 2, N-terminally processedAdd BLAST620

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei1N-acetylmethionineCombined sources1
Modified residuei47PhosphoserineCombined sources1
Modified residuei49PhosphoserineCombined sources1
Modified residuei60PhosphoserineCombined sources1
Modified residuei63PhosphoserineCombined sources1

Post-translational modificationi

Phosphorylated in M (mitotic) phase.1 Publication

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

EPDiQ99543.
MaxQBiQ99543.
PaxDbiQ99543.
PeptideAtlasiQ99543.
PRIDEiQ99543.

PTM databases

iPTMnetiQ99543.
PhosphoSitePlusiQ99543.

Expressioni

Tissue specificityi

Widely expressed.1 Publication

Inductioni

Expression is repressed by CEBPA. Strongly overexpressed in leukemic cells.3 Publications

Gene expression databases

BgeeiENSG00000105821.
CleanExiHS_DNAJC2.
ExpressionAtlasiQ99543. baseline and differential.
GenevisibleiQ99543. HS.

Organism-specific databases

HPAiHPA020454.

Interactioni

Subunit structurei

Interacts (via ZRF1-UBD region) with ID1 (By similarity). Component of ribosome-associated complex (RAC), a heterodimer composed of Hsp70/DnaK-type chaperone HSPA14 and Hsp40/DnaJ-type chaperone DNAJC2.By similarity1 Publication

GO - Molecular functioni

  • histone binding Source: UniProtKB
  • Hsp70 protein binding Source: UniProtKB
  • ubiquitin binding Source: UniProtKB
Complete GO annotation...

Protein-protein interaction databases

BioGridi117946. 20 interactors.
DIPiDIP-60462N.
IntActiQ99543. 2 interactors.
STRINGi9606.ENSP00000368565.

Structurei

Secondary structure

1621
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi556 – 568Combined sources13
Helixi576 – 583Combined sources8
Helixi589 – 618Combined sources30

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
2M2ENMR-A551-621[»]
ProteinModelPortaliQ99543.
SMRiQ99543.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini88 – 161JPROSITE-ProRule annotationAdd BLAST74
Domaini449 – 511SANT 1PROSITE-ProRule annotationAdd BLAST63
Domaini549 – 604SANT 2PROSITE-ProRule annotationAdd BLAST56

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni23 – 31Epitope (recognized by CD8(+) cytotoxic T-lymphocytes)9
Regioni160 – 250ZRF1-UBDAdd BLAST91

Domaini

The ZRF1-UBD region specifically recognizes and binds H2AK119ub. The ZRF1-UBD region is also involved in protein-protein interactions with other proteins, suggesting that it may be masked by some regulator, thereby preventing its association with H2AK119ub.1 Publication

Keywords - Domaini

Repeat

Phylogenomic databases

eggNOGiKOG0724. Eukaryota.
COG5269. LUCA.
GeneTreeiENSGT00530000063419.
HOGENOMiHOG000006900.
HOVERGENiHBG008782.
InParanoidiQ99543.
KOiK09522.
OMAiTTPDRWD.
OrthoDBiEOG091G04S8.
PhylomeDBiQ99543.
TreeFamiTF105834.

Family and domain databases

CDDicd06257. DnaJ. 1 hit.
Gene3Di1.10.287.110. 1 hit.
InterProiView protein in InterPro
IPR001623. DnaJ_domain.
IPR018253. DnaJ_domain_CS.
IPR009057. Homeobox-like.
IPR032003. RAC_head.
IPR001005. SANT/Myb.
IPR017884. SANT_dom.
PfamiView protein in Pfam
PF00226. DnaJ. 1 hit.
PF00249. Myb_DNA-binding. 2 hits.
PF16717. RAC_head. 1 hit.
SMARTiView protein in SMART
SM00271. DnaJ. 1 hit.
SM00717. SANT. 2 hits.
SUPFAMiSSF46565. SSF46565. 1 hit.
SSF46689. SSF46689. 2 hits.
PROSITEiView protein in PROSITE
PS00636. DNAJ_1. 1 hit.
PS50076. DNAJ_2. 1 hit.
PS51293. SANT. 2 hits.

Sequences (2)i

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

This entry describes 2 isoformsi produced by alternative splicing. AlignAdd to basket

Isoform 1 (identifier: Q99543-1) [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
MLLLPSAADG RGTAITHALT SASTLCQVEP VGRWFEAFVK RRNRNASASF 
        60         70         80         90        100
QELEDKKELS EESEDEELQL EEFPMLKTLD PKDWKNQDHY AVLGLGHVRY 
       110        120        130        140        150
KATQRQIKAA HKAMVLKHHP DKRKAAGEPI KEGDNDYFTC ITKAYEMLSD 
       160        170        180        190        200
PVKRRAFNSV DPTFDNSVPS KSEAKDNFFE VFTPVFERNS RWSNKKNVPK 
       210        220        230        240        250
LGDMNSSFED VDIFYSFWYN FDSWREFSYL DEEEKEKAEC RDERRWIEKQ 
       260        270        280        290        300
NRATRAQRKK EEMNRIRTLV DNAYSCDPRI KKFKEEEKAK KEAEKKAKAE 
       310        320        330        340        350
AKRKEQEAKE KQRQAELEAA RLAKEKEEEE VRQQALLAKK EKDIQKKAIK 
       360        370        380        390        400
KERQKLRNSC KTWNHFSDNE AERVKMMEEV EKLCDRLELA SLQCLNETLT 
       410        420        430        440        450
SCTKEVGKAA LEKQIEEINE QIRKEKEEAE ARMRQASKNT EKSTGGGGNG 
       460        470        480        490        500
SKNWSEDDLQ LLIKAVNLFP AGTNSRWEVI ANYMNIHSSS GVKRTAKDVI 
       510        520        530        540        550
GKAKSLQKLD PHQKDDINKK AFDKFKKEHG VVPQADNATP SERFEGPYTD 
       560        570        580        590        600
FTPWTTEEQK LLEQALKTYP VNTPERWEKI AEAVPGRTKK DCMKRYKELV 
       610        620 
EMVKAKKAAQ EQVLNASRAK K
Length:621
Mass (Da):71,996
Last modified:May 18, 2010 - v4
Checksum:iE4DAEE7A73D0F64C
GO
Isoform 2 (identifier: Q99543-2) [UniParc]FASTAAdd to basket

The sequence of this isoform differs from the canonical sequence as follows:
     362-414: Missing.

Show »
Length:568
Mass (Da):65,913
Checksum:i390BA8AC8C0DFCAD
GO

Sequence cautioni

The sequence AAI39752 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.Curated
The sequence CAA66913 differs from that shown. Reason: Erroneous initiation. Translation N-terminally shortened.Curated

Experimental Info

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Sequence conflicti252R → G in CAA66913 (PubMed:8885239).Curated1
Sequence conflicti472G → R in CAA66913 (PubMed:8885239).Curated1
Sequence conflicti578E → K in AAI39752 (PubMed:15489334).Curated1

Alternative sequence

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Alternative sequenceiVSP_023562362 – 414Missing in isoform 2. 1 PublicationAdd BLAST53

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X98260 mRNA. Translation: CAA66913.1. Different initiation.
AC004668 Genomic DNA. No translation available.
BC000859 mRNA. Translation: AAH00859.1.
BC139751 mRNA. Translation: AAI39752.1. Different initiation.
CCDSiCCDS43628.1. [Q99543-1]
CCDS47679.1. [Q99543-2]
RefSeqiNP_001123359.1. NM_001129887.1. [Q99543-2]
NP_055192.1. NM_014377.1. [Q99543-1]
UniGeneiHs.558476.

Genome annotation databases

EnsembliENST00000249270; ENSP00000249270; ENSG00000105821. [Q99543-2]
ENST00000379263; ENSP00000368565; ENSG00000105821. [Q99543-1]
GeneIDi27000.
KEGGihsa:27000.
UCSCiuc003vbo.4. human. [Q99543-1]

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 nameiDNJC2_HUMAN
AccessioniPrimary (citable) accession number: Q99543
Secondary accession number(s): A4VCI0, Q9BVX1
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 11, 2001
Last sequence update: May 18, 2010
Last modified: July 5, 2017
This is version 160 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

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Human chromosome 7
    Human chromosome 7: entries, gene names and cross-references to MIM
  2. MIM cross-references
    Online Mendelian Inheritance in Man (MIM) cross-references in UniProtKB/Swiss-Prot
  3. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references