DNAJB1

DnaJ (Hsp40) homolog, subfamily B, member 1
PDB rendering based on 1hdj.
Available structures PDB Ortholog search: PDBe, RCSB List of PDB id codes 1HDJ​, 2QLD​, 3AGX​, 3AGY​, 3AGZ​, 4WB7​
Identifiers
Symbols	DNAJB1 ; HSPF1; Hdj1; Hsp40; RSPH16B; Sis1
External IDs	OMIM: 604572 MGI: 1931874 HomoloGene: 55957 GeneCards: DNAJB1 Gene
Gene ontology Molecular function • ATPase activator activity • protein binding • Hsp70 protein binding • unfolded protein binding • chaperone binding • ATPase binding Cellular component • nucleus • nucleoplasm • nucleolus • cytosol • extracellular exosome Biological process • response to unfolded protein • positive regulation of ATPase activity • cellular response to heat • chaperone mediated protein folding requiring cofactor • chaperone cofactor-dependent protein refolding • negative regulation of inclusion body assembly • regulation of cellular response to heat Sources: Amigo / QuickGO
RNA expression pattern
More reference expression data
Orthologs
Species	Human	Mouse
Entrez	3337	81489
Ensembl	ENSG00000132002	ENSMUSG00000005483
UniProt	P25685	Q9QYJ3
RefSeq (mRNA)	NM_001300914	NM_001308227
RefSeq (protein)	NP_001287843	NP_001295156
Location (UCSC)	Chr 19: 14.51 – 14.53 Mb	Chr 8: 83.61 – 83.61 Mb
PubMed search

DnaJ homolog subfamily B member 1 is a protein that in humans is encoded by the DNAJB1 gene.^[1][2][3]

Interactions

DNAJB1 has been shown to interact with:

• HSPA4,^[4] and
• STUB1^[5]

References

1. Hata M, Okumura K, Seto M, Ohtsuka K (Mar 1997). "Genomic cloning of a human heat shock protein 40 (Hsp40) gene (HSPF1) and its chromosomal localization to 19p13.2". Genomics 38 (3): 446–9. doi:10.1006/geno.1996.0653. PMID 8975727.
2. Ohtsuka K (Jan 1994). "Cloning of a cDNA for heat-shock protein hsp40, a human homologue of bacterial DnaJ". Biochem Biophys Res Commun 197 (1): 235–40. doi:10.1006/bbrc.1993.2466. PMID 8250930.
3. "Entrez Gene: DNAJB1 DnaJ (Hsp40) homolog, subfamily B, member 1".
4. Oh WK, Song J (Aug 2003). "Cooperative interaction of Hsp40 and TPR1 with Hsp70 reverses Hsp70-HspBp1 complex formation". Mol. Cells 16 (1): 84–91. PMID 14503850.
5. Ballinger CA, Connell P, Wu Y, Hu Z, Thompson LJ, Yin LY, Patterson C (Jun 1999). "Identification of CHIP, a novel tetratricopeptide repeat-containing protein that interacts with heat shock proteins and negatively regulates chaperone functions". Mol. Cell. Biol. 19 (6): 4535–45. doi:10.1128/mcb.19.6.4535. PMC 104411. PMID 10330192.

Further reading

• Hattori H, Liu YC, Tohnai I; et al. (1992). "Intracellular localization and partial amino acid sequence of a stress-inducible 40-kDa protein in HeLa cells.". Cell Struct. Funct. 17 (1): 77–86. doi:10.1247/csf.17.77. PMID 1586970.
• Raabe T, Manley JL (1992). "A human homologue of the Escherichia coli DnaJ heat-shock protein.". Nucleic Acids Res. 19 (23): 6645. doi:10.1093/nar/19.23.6645. PMC 329243. PMID 1754405.
• Freeman BC, Morimoto RI (1996). "The human cytosolic molecular chaperones hsp90, hsp70 (hsc70) and hdj-1 have distinct roles in recognition of a non-native protein and protein refolding.". EMBO J. 15 (12): 2969–79. PMC 450238. PMID 8670798.
• Qian YQ, Patel D, Hartl FU, McColl DJ (1996). "Nuclear magnetic resonance solution structure of the human Hsp40 (HDJ-1) J-domain.". J. Mol. Biol. 260 (2): 224–35. doi:10.1006/jmbi.1996.0394. PMID 8764402.
• Shi Y, Mosser DD, Morimoto RI (1998). "Molecular chaperones as HSF1-specific transcriptional repressors.". Genes Dev. 12 (5): 654–66. doi:10.1101/gad.12.5.654. PMC 316571. PMID 9499401.
• Hata M, Ohtsuka K (1998). "Characterization of HSE sequences in human Hsp40 gene: structural and promoter analysis.". Biochim. Biophys. Acta 1397 (1): 43–55. doi:10.1016/S0167-4781(97)00208-X. PMID 9545528.
• Zou J, Guo Y, Guettouche T; et al. (1998). "Repression of heat shock transcription factor HSF1 activation by HSP90 (HSP90 complex) that forms a stress-sensitive complex with HSF1.". Cell 94 (4): 471–80. doi:10.1016/S0092-8674(00)81588-3. PMID 9727490.
• Melville MW, Tan SL, Wambach M; et al. (1999). "The cellular inhibitor of the PKR protein kinase, P58(IPK), is an influenza virus-activated co-chaperone that modulates heat shock protein 70 activity.". J. Biol. Chem. 274 (6): 3797–803. doi:10.1074/jbc.274.6.3797. PMID 9920933.
• Ballinger CA, Connell P, Wu Y; et al. (1999). "Identification of CHIP, a novel tetratricopeptide repeat-containing protein that interacts with heat shock proteins and negatively regulates chaperone functions.". Mol. Cell. Biol. 19 (6): 4535–45. doi:10.1128/mcb.19.6.4535. PMC 104411. PMID 10330192.
• Michels AA, Kanon B, Bensaude O, Kampinga HH (2000). "Heat shock protein (Hsp) 40 mutants inhibit Hsp70 in mammalian cells.". J. Biol. Chem. 274 (51): 36757–63. doi:10.1074/jbc.274.51.36757. PMID 10593983.
• Terada K, Mori M (2000). "Human DnaJ homologs dj2 and dj3, and bag-1 are positive cochaperones of hsc70.". J. Biol. Chem. 275 (32): 24728–34. doi:10.1074/jbc.M002021200. PMID 10816573.
• Ohtsuka K, Hata M (2001). "Mammalian HSP40/DNAJ homologs: cloning of novel cDNAs and a proposal for their classification and nomenclature.". Cell Stress Chaperones 5 (2): 98–112. doi:10.1379/1466-1268(2000)005<0098:MHDHCO>2.0.CO;2. PMC 312896. PMID 11147971.
• Kuncewicz T, Balakrishnan P, Snuggs MB, Kone BC (2001). "Specific association of nitric oxide synthase-2 with Rac isoforms in activated murine macrophages.". Am. J. Physiol. Renal Physiol. 281 (2): F326–36. PMID 11457725.
• Pang Q, Keeble W, Christianson TA; et al. (2001). "FANCC interacts with Hsp70 to protect hematopoietic cells from IFN-gamma/TNF-alpha-mediated cytotoxicity.". EMBO J. 20 (16): 4478–89. doi:10.1093/emboj/20.16.4478. PMC 125562. PMID 11500375.
• Hernández MP, Chadli A, Toft DO (2002). "HSP40 binding is the first step in the HSP90 chaperoning pathway for the progesterone receptor.". J. Biol. Chem. 277 (14): 11873–81. doi:10.1074/jbc.M111445200. PMID 11809754.
• Anwar A, Siegel D, Kepa JK, Ross D (2002). "Interaction of the molecular chaperone Hsp70 with human NAD(P)H:quinone oxidoreductase 1.". J. Biol. Chem. 277 (16): 14060–7. doi:10.1074/jbc.M111576200. PMID 11821413.
• Strausberg RL, Feingold EA, Grouse LH; et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Reuter TY, Medhurst AL, Waisfisz Q; et al. (2003). "Yeast two-hybrid screens imply involvement of Fanconi anemia proteins in transcription regulation, cell signaling, oxidative metabolism, and cellular transport.". Exp. Cell Res. 289 (2): 211–21. doi:10.1016/S0014-4827(03)00261-1. PMID 14499622.
• Honeyman, Joshua N, Simon E, Robine N; et al. (2014). "Detection of a Recurrent DNAJB1-PRKACA Chimeric Transcript in Fibrolamellar Hepatocellular Carcinoma.". Science 343: 1010–1014. doi:10.1126/science.1249484. PMC 4286414. PMID 24578576.