HSBP1 heat shock factor binding protein 1 [Homo sapiens (human)] - Gene

Summary

Official Symbol: HSBP1provided by HGNC
Official Full Name: heat shock factor binding protein 1provided by HGNC
Primary source: HGNC:HGNC:5203
See related: Ensembl:ENSG00000230989 MIM:604553; AllianceGenome:HGNC:5203
Gene type: protein coding
RefSeq status: REVIEWED
Organism: Homo sapiens
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as: NPC-A-13
Summary: The heat-shock response is elicited by exposure of cells to thermal and chemical stress and through the activation of HSFs (heat shock factors) results in the elevated expression of heat-shock induced genes. Heat shock factor binding protein 1 (HSBP1), is a 76-amino-acid protein that binds to heat shock factor 1(HSF1), which is a transcription factor involved in the HS response. During HS response, HSF1 undergoes conformational transition from an inert non-DNA-binding monomer to active functional trimers. HSBP1 is nuclear-localized and interacts with the active trimeric state of HSF1 to negatively regulate HSF1 DNA-binding activity. Overexpression of HSBP1 in mammalian cells represses the transactivation activity of HSF1. When overexpressed in C.elegans HSBP1 has severe effects on survival of the animals after thermal and chemical stress consistent with a role of HSBP1 as a negative regulator of heat shock response. [provided by RefSeq, Jul 2008]
Expression: Ubiquitous expression in brain (RPKM 51.9), thyroid (RPKM 45.3) and 25 other tissues See more
Orthologs: mouse all
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Genomic context

Location:: 16q23.3

Exon count:: 4

Annotation release	Status	Assembly	Chr	Location
RS_2024_08	current	GRCh38.p14 (GCF_000001405.40)	16	NC_000016.10 (83807978..83819737)
RS_2024_08	current	T2T-CHM13v2.0 (GCF_009914755.1)	16	NC_060940.1 (89873707..89885464)
RS_2024_09	previous assembly	GRCh37.p13 (GCF_000001405.25)	16	NC_000016.9 (83841583..83853342)

Chromosome 16 - NC_000016.10 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

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Expression

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See details

Project title: Tissue-specific circular RNA induction during human fetal development
Description: 35 human fetal samples from 6 tissues (3 - 7 replicates per tissue) collected between 10 and 20 weeks gestational time were sequenced using Illumina TruSeq Stranded Total RNA
BioProject: PRJNA270632
Publication: PMID 26076956
Analysis date: Mon Apr 2 22:54:59 2018

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

Lin28A Regulates Stem-like Properties of Ovarian Cancer Cells by Enriching RAN and HSBP1 mRNA and Up-regulating its Protein Expression.
Title: Lin28A Regulates Stem-like Properties of Ovarian Cancer Cells by Enriching RAN and HSBP1 mRNA and Up-regulating its Protein Expression.
The functional HSPB1 rs2868371 promoter variant may affect lung cancer survival by regulation of HSPB1 expression levels through glucocorticoid receptor interaction.
Title: The single nucleotide variant rs2868371 associates with the risk of mortality in non-small cell lung cancer patients: A multicenter prospective validation.
the armadillo-type NEFs budding yeast Fes1 and its human homolog HspBP1 employ flexible N-terminal release domains (RDs) with substrate-mimicking properties to ensure the efficient release of persistent substrates from Hsp70
Title: Nucleotide exchange factors Fes1 and HspBP1 mimic substrate to release misfolded proteins from Hsp70.
Here, we identify the small coiled-coil protein HSBP1 as a factor that specifically promotes the assembly of a ternary complex composed of CCDC53, WASH, and FAM21 by dissociating the CCDC53 homotrimeric precursor. HSBP1 operates at the centrosome, which concentrates the building blocks.
Title: The trimeric coiled-coil HSBP1 protein promotes WASH complex assembly at centrosomes.
HSPB1 protects cells against proapoptotic agents when expressed at high level, while inhibition of its expression has been found to predispose cells to apoptosis.
Title: A novel p.T139M mutation in HSPB1 highlighting the phenotypic spectrum in a family.
Results presented here show that acquisition of a positive charge in HSBP1, either by protonation of His124 or its substitution by lysine, reduces the stability of the dimer interface of the alpha-crystallin domain, increases oligomeric size, and modestly increases chaperone activity.
Title: pH-dependent structural modulation is conserved in the human small heat shock protein HSBP1.
HSBP1 is crucial for regulating resistance to radiotherapy of oral squamous epithelial carcinoma cells by inducing stem-like status.
Title: Overexpression of HSBP1 is associated with resistance to radiotherapy in oral squamous epithelial carcinoma.
HspBP1 inhibited the cytotoxic activity of the Tag7-Hsp70 complex secreted by lymphocytes. HspBP1
Title: The heat shock-binding protein (HspBP1) protects cells against the cytotoxic action of the Tag7-Hsp70 complex.
This study reports the crystal structure of a degradation-resistant fragment of HSBP1. A continuous, long-helix conformation of HSBP1 assembles into a coiled-coil three-helix bundle and subsequently into an elongated, symmetrical hexamer.
Title: Crystal structure of the hexamer of human heat shock factor binding protein 1.
HSBP likely mediates its function through its trimerization domain.
Title: Structure-function analysis of the heat shock factor-binding protein reveals a protein composed solely of a highly conserved and dynamic coiled-coil trimerization domain.

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Phenotypes

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Review eQTL and phenotype association data in this region using PheGenI

Variation

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Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Markers

RH65446 (e-PCR)
- UniSTS:57861

G54097 (e-PCR)
- UniSTS:109334

NoName (e-PCR)
- UniSTS:109370

D16S2665 (e-PCR)
- UniSTS:152412

D16S3242 (e-PCR)
- UniSTS:77933

RH41809 (e-PCR)
- UniSTS:86127

RH120356 (e-PCR)
- UniSTS:132497

SHGC-31940 (e-PCR)
- UniSTS:24271

Gene Ontology Provided by GOA

Function	Evidence Code	Pubs
enables identical protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables transcription corepressor activity	IEA Inferred from Electronic Annotation more info

Process	Evidence Code	Pubs
involved_in axonal transport of mitochondrion	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in cellular heat acclimation	IBA Inferred from Biological aspect of Ancestor more info
involved_in endodermal cell differentiation	IEA Inferred from Electronic Annotation more info
involved_in negative regulation of transcription by RNA polymerase II	TAS Traceable Author Statement more info	PubMed

Component	Evidence Code	Pubs
located_in axon cytoplasm	IEA Inferred from Electronic Annotation more info
is_active_in cytosol	IBA Inferred from Biological aspect of Ancestor more info
located_in nucleoplasm	TAS Traceable Author Statement more info
is_active_in nucleus	IBA Inferred from Biological aspect of Ancestor more info

General protein information

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Preferred Names: heat shock factor-binding protein 1

Names: nasopharyngeal carcinoma-associated antigen 13

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.