Homo sapiens Protein: HSPB1
Summary
InnateDB Protein IDBP-23060.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol HSPB1
Protein Name heat shock 27kDa protein 1
Synonyms CMT2F; HEL-S-102; HMN2B; HS.76067; Hsp25; HSP27; HSP28; SRP27;
Species Homo sapiens
Ensembl Protein ENSP00000248553
InnateDB Gene IDBG-23058 (HSPB1)
Protein Structure
UniProt Annotation
Function Involved in stress resistance and actin organization.
Subcellular Localization Cytoplasm. Nucleus. Cytoplasm, cytoskeleton, spindle. Note=Cytoplasmic in interphase cells. Colocalizes with mitotic spindles in mitotic cells. Translocates to the nucleus during heat shock and resides in sub-nuclear structures known as SC35 speckles or nuclear splicing speckles.
Disease Associations Charcot-Marie-Tooth disease 2F (CMT2F) [MIM:606595]: A dominant axonal form of Charcot-Marie-Tooth disease, a disorder of the peripheral nervous system, characterized by progressive weakness and atrophy, initially of the peroneal muscles and later of the distal muscles of the arms. Charcot-Marie-Tooth disease is classified in two main groups on the basis of electrophysiologic properties and histopathology: primary peripheral demyelinating neuropathies (designated CMT1 when they are dominantly inherited) and primary peripheral axonal neuropathies (CMT2). Neuropathies of the CMT2 group are characterized by signs of axonal degeneration in the absence of obvious myelin alterations, normal or slightly reduced nerve conduction velocities, and progressive distal muscle weakness and atrophy. Nerve conduction velocities are normal or slightly reduced. Onset of Charcot-Marie-Tooth disease type 2F is between 15 and 25 years with muscle weakness and atrophy usually beginning in feet and legs (peroneal distribution). Upper limb involvement occurs later. {ECO:0000269PubMed:15122254, ECO:0000269PubMed:22206013}. Note=The disease is caused by mutations affecting the gene represented in this entry.Neuronopathy, distal hereditary motor, 2B (HMN2B) [MIM:608634]: A neuromuscular disorder. Distal hereditary motor neuronopathies constitute a heterogeneous group of neuromuscular disorders caused by selective degeneration of motor neurons in the anterior horn of the spinal cord, without sensory deficit in the posterior horn. The overall clinical picture consists of a classical distal muscular atrophy syndrome in the legs without clinical sensory loss. The disease starts with weakness and wasting of distal muscles of the anterior tibial and peroneal compartments of the legs. Later on, weakness and atrophy may expand to the proximal muscles of the lower limbs and/or to the distal upper limbs. {ECO:0000269PubMed:15122254}. Note=The disease is caused by mutations affecting the gene represented in this entry.
Tissue Specificity Detected in all tissues tested: skeletal muscle, heart, aorta, large intestine, small intestine, stomach, esophagus, bladder, adrenal gland, thyroid, pancreas, testis, adipose tissue, kidney, liver, spleen, cerebral cortex, blood serum and cerebrospinal fluid. Highest levels are found in the heart and in tissues composed of striated and smooth muscle. {ECO:0000269PubMed:1560006}.
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 372 experimentally validated interaction(s) in this database.
They are also associated with 8 interaction(s) predicted by orthology.
Experimentally validated
Total 372 [view]
Protein-Protein 372 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 8 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0005080 protein kinase C binding
GO:0005515 protein binding
GO:0008426 protein kinase C inhibitor activity
GO:0019901 protein kinase binding
GO:0042802 identical protein binding
GO:0043130 ubiquitin binding
GO:0044822 poly(A) RNA binding
Biological Process
GO:0001895 retina homeostasis
GO:0006446 regulation of translational initiation
GO:0006469 negative regulation of protein kinase activity
GO:0006928 cellular component movement
GO:0006986 response to unfolded protein
GO:0008219 cell death
GO:0009615 response to virus
GO:0010467 gene expression
GO:0016070 RNA metabolic process
GO:0016071 mRNA metabolic process
GO:0032731 positive regulation of interleukin-1 beta production
GO:0035556 intracellular signal transduction
GO:0035924 cellular response to vascular endothelial growth factor stimulus
GO:0038033 positive regulation of endothelial cell chemotaxis by VEGF-activated vascular endothelial growth factor receptor signaling pathway
GO:0042535 positive regulation of tumor necrosis factor biosynthetic process
GO:0043066 negative regulation of apoptotic process
GO:0043122 regulation of I-kappaB kinase/NF-kappaB signaling
GO:0043536 positive regulation of blood vessel endothelial cell migration
GO:0045766 positive regulation of angiogenesis
GO:0071901 negative regulation of protein serine/threonine kinase activity
GO:1902176 negative regulation of oxidative stress-induced intrinsic apoptotic signaling pathway
GO:2001028 positive regulation of endothelial cell chemotaxis
GO:2001234 negative regulation of apoptotic signaling pathway
Cellular Component
GO:0000502 proteasome complex
GO:0005615 extracellular space
GO:0005622 intracellular
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005819 spindle
GO:0005829 cytosol
GO:0005856 cytoskeleton
GO:0005886 plasma membrane
GO:0030018 Z disc
GO:0043292 contractile fiber
GO:0070062 extracellular vesicular exosome
Protein Structure and Domains
PDB ID
InterPro IPR001436 Alpha crystallin/Heat shock protein
IPR002068 Alpha crystallin/Hsp20 domain
IPR008978 HSP20-like chaperone
PFAM PF00011
PRINTS PR00299
PIRSF PIRSF036514
SMART
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt P04792
PhosphoSite PhosphoSite-P04792
TrEMBL V9HW43
UniProt Splice Variant
Entrez Gene 3315
UniGene Hs.726398
RefSeq NP_001531
HUGO HGNC:5246
OMIM 602195
CCDS CCDS5583
HPRD 09076
IMGT
EMBL AB020027 AC006388 AK311894 BC000510 BC012292 BC012768 BC014920 BC073768 BT019888 CH471220 CR407614 CR536489 DQ379985 FJ224323 L39370 S74571 U90906 X16477 X54079 Z23090
GenPept AAA62175 AAB20722 AAB51056 AAH00510 AAH12292 AAH12768 AAH14920 AAH73768 AAV38691 ABC88475 ACI46015 BAB17232 BAG34835 CAA34498 CAA38016 CAA80636 CAG28542 CAG38728 EAW71803