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HSCB
HPA
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  • HSCB
PROTEIN SUMMARY GENE INFORMATION RNA DATA ANTIBODY DATA
GENERAL INFORMATIONi

General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.

Gene namei

Official gene symbol, which is typically a short form of the gene name, according to HGNC.

HSCB
Synonyms DNAJC20, HSC20, Jac1
Gene descriptioni

Full gene name according to HGNC.

HscB mitochondrial iron-sulfur cluster cochaperone
Protein classi

Assigned HPA protein class(es) for the encoded protein(s).

Disease related genes
Human disease related genes
Predicted locationi

All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.

  • Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.

  • Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).

The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.

Intracellular
Protein evidence Evidence at protein level (all genes)
GENE INFORMATIONi

Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.

Chromosome 22
Cytoband q12.1
Chromosome location (bp) 28742039 - 28757515
Number of transcriptsi

Number of protein-coding transcripts from the gene as defined by Ensembl.

2
Ensembl ENSG00000100209 (version 109)
Entrez gene 150274
HGNC HGNC:28913
UniProt Q8IWL3 (UniProt - Evidence at protein level)
neXtProt NX_Q8IWL3
GeneCards HSCB
Antibodypedia HSCB antibodies


PROTEIN FUNCTION
Protein function (UniProt)i

Useful information about the protein provided by UniProt.

[Iron-sulfur cluster co-chaperone protein HscB, mitochondrial]: Acts as a co-chaperone in iron-sulfur cluster assembly in mitochondria 1. Required for incorporation of iron-sulfur clusters into SDHB, the iron-sulfur protein subunit of succinate dehydrogenase that is involved in complex II of the mitochondrial electron transport chain 2. Recruited to SDHB by interaction with SDHAF1 which first binds SDHB and then recruits the iron-sulfur transfer complex formed by HSC20, HSPA9 and ISCU through direct binding to HSC20 3. Plays an essential role in hematopoiesis (By similarity).... show less
Molecular function (UniProt)i

Keywords assigned by UniProt to proteins due to their particular molecular function.

Chaperone
Ligand (UniProt)i

Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.

Metal-binding
Gene summary (Entrez)i

Useful information about the gene from Entrez

This gene encodes a DnaJ-type co-chaperone and member of the heat shock cognate B (HscB) family of proteins. The encoded protein plays a role in the synthesis of iron-sulfur clusters, protein cofactors that are involved in the redox reactions of mitochondrial electron transport and other processes. Cells in which this gene is knocked down exhibit reduced activity of iron-sulfur cluster-dependent enzymes including succinate dehydrogenase and aconitase. The encoded protein may stimulate the ATPase activity of the mitochondrial stress-70 protein. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]... show less
PROTEIN INFORMATIONi

The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.

The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.

The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.

The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Splice variant SwissProt TrEMBL Protein class Gene ontology Length & mass Signal peptide
(predicted)
Transmembrane regions
(predicted)
HSCB-201
ENSP00000216027
ENST00000216027
Q8IWL3
[Direct mapping] Iron-sulfur cluster co-chaperone protein HscB Iron-sulfur cluster co-chaperone protein HscB, cytoplasmic Iron-sulfur cluster co-chaperone protein HscB, mitochondrial
Show all
A0A384NYJ4
[Target identity:100%; Query identity:100%] Epididymis secretory sperm binding protein; J-type co-chaperone HSC20, isoform CRA_a
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Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Disease related genes
Human disease related genes
   Cardiovascular diseases
   Hematologic diseases
Mapped to neXtProt
   neXtProt - Evidence at protein level
Protein evidence (Kim et al 2014)
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0001671 [ATPase activator activity]
GO:0003674 [molecular_function]
GO:0005515 [protein binding]
GO:0005654 [nucleoplasm]
GO:0005737 [cytoplasm]
GO:0005739 [mitochondrion]
GO:0005829 [cytosol]
GO:0016226 [iron-sulfur cluster assembly]
GO:0042802 [identical protein binding]
GO:0044571 [[2Fe-2S] cluster assembly]
GO:0046872 [metal ion binding]
GO:0051087 [chaperone binding]
GO:0051259 [protein complex oligomerization]
GO:0060215 [primitive hemopoiesis]
GO:0060319 [primitive erythrocyte differentiation]
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235 aa
27.4 kDa
No 0
HSCB-202
ENSP00000381914
ENST00000398941
B0QYH2
[Direct mapping] Iron-sulfur cluster co-chaperone protein HscB; J-type co-chaperone HSC20, isoform CRA_c
Show all
Predicted intracellular proteins
   Intracellular proteins predicted by MDM and MDSEC
Human disease related genes
   Cardiovascular diseases
   Hematologic diseases
Protein evidence (Ezkurdia et al 2014)
Show all
GO:0001671 [ATPase activator activity]
GO:0005654 [nucleoplasm]
GO:0005739 [mitochondrion]
GO:0005829 [cytosol]
GO:0044571 [[2Fe-2S] cluster assembly]
GO:0051087 [chaperone binding]
Show all
143 aa
16.5 kDa
No 0

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