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Protein

Heat shock protein beta-1

Gene

HSPB1

Organism
Bos taurus (Bovine)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at transcript leveli

Functioni

Small heat shock protein which functions as a molecular chaperone probably maintaining denatured proteins in a folding-competent state. Plays a role in stress resistance and actin organization. Through its molecular chaperone activity may regulate numerous biological processes including the phosphorylation and the axonal transport of neurofilament proteins.By similarity

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionChaperone
Biological processStress response

Names & Taxonomyi

Protein namesi
Recommended name:
Heat shock protein beta-1
Short name:
HspB1
Alternative name(s):
Heat shock 27 kDa protein
Short name:
HSP 27
Gene namesi
Name:HSPB1
Synonyms:HSP27
OrganismiBos taurus (Bovine)
Taxonomic identifieri9913 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaRuminantiaPecoraBovidaeBovinaeBos
Proteomesi
  • UP000009136 Componenti: Unplaced

Subcellular locationi

Extracellular region or secreted Cytosol Plasma membrane Cytoskeleton Lysosome Endosome Peroxisome ER Golgi apparatus Nucleus Mitochondrion Manual annotation Automatic computational assertionGraphics by Christian Stolte; Source: COMPARTMENTS

Keywords - Cellular componenti

Cytoplasm, Cytoskeleton, Nucleus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001259241 – 201Heat shock protein beta-1Add BLAST201

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei12Omega-N-methylarginineBy similarity1
Modified residuei15Phosphoserine; by MAPKAPK2 and MAPKAPK3By similarity1
Modified residuei27PhosphoserineBy similarity1
Modified residuei74Phosphoserine; by MAPKAPK2, MAPKAPK3 and MAPKAPK5By similarity1
Modified residuei78Phosphoserine; by MAPKAPK2, MAPKAPK3 and MAPKAPK5By similarity1
Modified residuei79PhosphoserineBy similarity1
Modified residuei82PhosphoserineBy similarity1
Modified residuei94PhosphoserineBy similarity1
Modified residuei119N6-acetyllysineBy similarity1
Modified residuei170PhosphothreonineBy similarity1
Modified residuei172PhosphoserineBy similarity1
Modified residuei195PhosphoserineBy similarity1

Post-translational modificationi

Phosphorylated upon exposure to protein kinase C activators and heat shock. Phosphorylation by MAPKAPK2 and MAPKAPK3 in response to stress dissociates HSPB1 from large small heat-shock protein (sHsps) oligomers and impairs its chaperone activity and ability to protect against oxidative stress effectively. Phosphorylation by MAPKAPK5 in response to PKA stimulation induces F-actin rearrangement.By similarity

Keywords - PTMi

Acetylation, Methylation, Phosphoprotein

Proteomic databases

PaxDbiQ3T149.
PeptideAtlasiQ3T149.
PRIDEiQ3T149.

PTM databases

iPTMnetiQ3T149.

Interactioni

Subunit structurei

Homooligomer. Homodimer; becomes monomeric upon activation. Heterooligomer; with HSPB6. Associates with alpha- and beta-tubulin. Interacts with TGFB1I1. Interacts with CRYAB. Interacts with HSPB8. Interacts with HSPBAP1.By similarity

GO - Molecular functioni

Protein-protein interaction databases

STRINGi9913.ENSBTAP00000015883.

Structurei

3D structure databases

ProteinModelPortaliQ3T149.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini72 – 180sHSPPROSITE-ProRule annotationAdd BLAST109

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni68 – 201Interaction with TGFB1I1By similarityAdd BLAST134

Sequence similaritiesi

Belongs to the small heat shock protein (HSP20) family.PROSITE-ProRule annotation

Phylogenomic databases

eggNOGiKOG3591. Eukaryota.
ENOG410YERS. LUCA.
HOGENOMiHOG000233955.
HOVERGENiHBG054766.
InParanoidiQ3T149.

Family and domain databases

Gene3Di2.60.40.790. 1 hit.
InterProiView protein in InterPro
IPR002068. A-crystallin/Hsp20_dom.
IPR001436. Alpha-crystallin/HSP.
IPR031107. HSP20.
IPR008978. HSP20-like_chaperone.
PANTHERiPTHR11527. PTHR11527. 1 hit.
PfamiView protein in Pfam
PF00011. HSP20. 1 hit.
PRINTSiPR00299. ACRYSTALLIN.
SUPFAMiSSF49764. SSF49764. 1 hit.
PROSITEiView protein in PROSITE
PS01031. SHSP. 1 hit.

Sequencei

Sequence statusi: Complete.

Q3T149-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MAERRVPFSL LRGPSWDPFR DWYPAHSRLF DQAFGLPRLP EEWSQWLSHS
60 70 80 90 100
GWPGYVRALP AAAIEGPAYN RALSRQLSSG VSEIQQTADR WRVSLDVNHF
110 120 130 140 150
APEELTVKTK DGVVEITGKH EERQDEHGYI SRCFTRKYTL PPGVDPTLVS
160 170 180 190 200
SSLSPEGTLT VEAPLPKSAT QSAEITIPVT FQARAQLGGP EAGKSEQPEN

K
Length:201
Mass (Da):22,393
Last modified:October 11, 2005 - v1
Checksum:i9CEAFF050B7FAD24
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BC102129 mRNA. Translation: AAI02130.1.
RefSeqiXP_005225172.1. XM_005225115.1.
UniGeneiBt.4415.

Genome annotation databases

GeneIDi516099.

Similar proteinsi

Entry informationi

Entry nameiHSPB1_BOVIN
AccessioniPrimary (citable) accession number: Q3T149
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 10, 2006
Last sequence update: October 11, 2005
Last modified: August 30, 2017
This is version 77 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. SIMILARITY comments
    Index of protein domains and families