DNAJB1 - DnaJ heat shock protein family (Hsp40) member B1 Gene
Also Known as Hdj1; Sis1; HSPF1; Hsp40; RSPH16B
Species: Homo sapiens
About DNAJB1
This gene has 25 transcripts (splice variants), 425 orthologues, 11 paralogues and is associated with 55 phenotypes. Ubiquitous expression in esophagus (RPKM 87.8), adrenal (RPKM 84.6) and 24 other tissues.
Summary
This gene encodes a member of the DnaJ or HSP40 (heat shock protein 40 kD) family of proteins. DNAJ family members are characterized by a highly conserved amino acid stretch called the 'J-domain' and function as one of the two major classes of molecular chaperones involved in a wide range of cellular events, such as protein folding and oligomeric protein complex assembly. The encoded protein is a molecular chaperone that stimulates the ATPase activity of HSP70 heat-shock proteins in order to promote protein folding and prevent misfolded protein aggregation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2015]
DNAJB1 Products (7)
| mRNA | Protein | Name |
|---|---|---|
| XM_011527956.4 | XP_011526258.1 | dnaJ homolog subfamily B member 1 isoform X1 |
| NM_006145.3 | NP_006136.1 | dnaJ homolog subfamily B member 1 isoform 1 |
| NM_001300914.2 | NP_001287843.1 | dnaJ homolog subfamily B member 1 isoform 2 |
| NM_001313964.2 | NP_001300893.1 | dnaJ homolog subfamily B member 1 isoform 2 |
| XM_047438746.1 | XP_047294702.1 | dnaJ homolog subfamily B member 1 isoform X1 |
| XM_006722733.3 | XP_006722796.1 | dnaJ homolog subfamily B member 1 isoform X1 |
| XM_047438745.1 | XP_047294701.1 | dnaJ homolog subfamily B member 1 isoform X1 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables ATPase activator activity |
IDA
IDA: Inferred from direct assay
|
20060297 | GOA |
| enables ATPase binding |
IPI
IPI: Inferred from physical interaction
|
23921388 | GOA |
| enables Hsp70 protein binding |
IPI
IPI: Inferred from physical interaction
|
23921388 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
9499401 | GOA |
| enables protein-folding chaperone binding |
IPI
IPI: Inferred from physical interaction
|
21231916 | GOA |
| enables transcription corepressor activity |
IDA
IDA: Inferred from direct assay
|
9499401 | GOA |
| enables transcription regulator inhibitor activity |
IDA
IDA: Inferred from direct assay
|
9499401 | GOA |
| enables unfolded protein binding |
IDA
IDA: Inferred from direct assay
|
21231916 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in cellular response to heat |
IDA
IDA: Inferred from direct assay
|
9499401 | GOA |
| involved in chaperone cofactor-dependent protein refolding |
IDA
IDA: Inferred from direct assay
|
18620420 | GOA |
| involved in negative regulation of inclusion body assembly |
IDA
IDA: Inferred from direct assay
|
21231916 | GOA |
| involved in negative regulation of transcription by RNA polymerase II |
IDA
IDA: Inferred from direct assay
|
9499401 | GOA |
| involved in positive regulation of ATP-dependent activity |
IDA
IDA: Inferred from direct assay
|
23921388 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in cytoplasm |
IDA
IDA: Inferred from direct assay
|
25468996 | GOA |
| located in cytosol |
IDA
IDA: Inferred from direct assay
|
21231916 | GOA |
DNAJB1 Protein Structure
DnaJ: DnaJ domain (4 - 65)
DnaJ_C: DnaJ C terminal domain (253 - 326)
- 0
- 100
- 200
- 300
- 340 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
dnaJ homolog subfamily B member 1 |
|
|
DNAJB1 Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | References |
|---|---|---|---|---|---|---|---|
|
Intra
|
DNAJB1 | P25685 | TBL1X | Homo sapiens | O60907-2 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | TBL1X | Homo sapiens | O60907-2 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | TBL1X | Homo sapiens | O60907-2 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | UNG | Homo sapiens | P13051-2 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | UNG | Homo sapiens | P13051-2 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | UNG | Homo sapiens | P13051-2 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | CDC37 | Homo sapiens | Q16543 | 35271311 | |
|
Intra
|
DNAJB1 | P25685 | CDC37 | Homo sapiens | Q16543 | 21163940 | |
|
Intra
|
DNAJB1 | P25685 | YWHAE | Homo sapiens | P62258 | 36931259 | |
|
Intra
|
DNAJB1 | P25685 | TFF2 | Homo sapiens | Q03403 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | TFF2 | Homo sapiens | Q03403 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | TFF2 | Homo sapiens | Q03403 | 32814053 | |
|
Intra
|
DNAJB1 | P25685 | TERF1 | Homo sapiens | P54274 | 21044950 | |
|
Intra
|
DNAJB1 | P25685 | TTLL12 | Homo sapiens | Q14166 | 33961781 | |
|
Intra
|
DNAJB1 | P25685 | TTLL12 | Homo sapiens | Q14166 | 28514442 | |
|
Intra
|
DNAJB1 | P25685 | TTLL12 | Homo sapiens | Q14166 | 32296183 | |
|
Intra
|
DNAJB1 | P25685 | TTLL12 | Homo sapiens | Q14166 | 35271311 |
Recombinant DNAJB1 Proteins
| Cat. No. | Product Name | Accession | Purity |
|---|---|---|---|
| HY-P70331 | HSP40/DNAJB1 Protein, Human (His) | P25685-1 (G2-I340) | ≥ 95%, as determined by reducing SDS-PAGE. |
DNAJB1 Antibodies
| Cat. No. | Product Name | Application | Reactivity |
|---|---|---|---|
| HY-P80710 | Hsp40 Antibody (YA731) | WB | Human |
| HY-P80710A | Hsp40 Antibody (YA731)(PBS only) | WB | Human |
| HY-P85703 | Hsp40 Antibody (YA5395) | IHC-P, WB | Human, Mouse, Rat |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Fibrolamellar Carcinoma |
|
|
| Retinitis Pigmentosa |
|
|
| Transvestism |
|
|
| Nervous System Disease |
|
|
| Amyotrophic Lateral Sclerosis 1 |
|
|
| Polyhydramnios |
|
|
| Cystic Fibrosis |
|
|
| Creutzfeldt-Jakob Disease |
|
|
| Hepatocellular Carcinoma |
|
|
| Autosomal Dominant Cerebellar Ataxia |
|
|
| Spinal Muscular Atrophy |
|
|
| Muscular Dystrophy, Limb-Girdle, Autosomal Dominant 1 |
|
|
| Craniotubular Dysplasia, Ikegawa Type |
|
|
| Spinal And Bulbar Muscular Atrophy, X-Linked 1 |
|
|
| Mixed Fibrolamellar Hepatocellular Carcinoma |
|
|
| Retinitis Pigmentosa 58 |
|
|
| Craniodiaphyseal Dysplasia |
|
|
| Autosomal Dominant Limb-Girdle Muscular Dystrophy |
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Felis catus | DNAJB1 | VGNC | VGNC:78440 |
| Rattus norvegicus | DNAJB1 | RGD | RGD:1304725 |
| Macaca mulatta | DNAJB1 | VGNC | VGNC:109616 |
| Canis familiaris | DNAJB1 | VGNC | VGNC:54594 |
| Mus musculus | DNAJB1 | MGD | MGI:1931874 |
| Others | DNAJB1 | NCBI |