※ Protein Information
Tag Content
UniProt Accession
Genbank Protein ID
Genbank Nucleotide ID
Protein Name
 Proteasome subunit beta
Protein Synonyms/Alias
 
Gene Name
 psmB
Gene Synonyms/Alias
 HVO_1562
Created Date
 3-June-2014
Organism
 Haloferax volcanii (strain ATCC 29605 / DSM 3757 / JCM 8879 / NBRC 14742 / NCIMB 2012 / VKM B-1768 / DS2) (Halobacterium volcanii)
NCBI Taxa ID
 309800
Phosphorylation
Position
Peptide
Code
Type
References
129 DMSMQALSTLVGNFL S LTP;HTP [1,2],UniProt
Reference
 [1]Posttranslational modification of the 20S proteasomal proteins of the archaeon Haloferax volcanii.
 Humbard MA,Stevens SM,Maupin-Furlow JA
 J. Bacteriol. 2006, Nov;188(21):7521-30. [PMID:16950923]
 [2]Ser/Thr/Tyr protein phosphorylation in the archaeon Halobacterium salinarum--a representative of the third domain of life.
 Aivaliotis M,Macek B,Gnad F,Reichelt P,Mann M,Oesterhelt D
 PLoS ONE 2009;4(3):e4777. [PMID:19274099]
Functional Description From UniProt
 FUNCTION: Component of the proteasome core, a large protease complex with broad specificity involved in protein degradation The H.volcanii alpha1-beta proteasome is able to cleave oligopeptides after Phe, Tyr and Trp, poorly after Glu but not after Arg. Thus, displays chymotrypsin-like activity, low caspase- like activity but no trypsin-like activity
Sequence Annotation From UniProt
 MOD_RES 129 129 Phosphoserine
Key Word From UniProt
 Autocatalyticcleavage; Completeproteome; Cytoplasm; Directproteinsequencing; Hydrolase; Phosphoprotein; Protease; Proteasome; Referenceproteome; Threonineprotease; Zymogen
Protein Sequence
 MRTPTHDEFS GRLDSLNGDR SNVFGPELGE FSNADRRADE LGDKETKTGT TTVGIKTEEG 60
 VVLATDMRAS MGYMVSSKDV QKVEEIHPTG ALTIAGSVSA AQSLISSLRA EVRLYEARRG 120
 EDMSMQALST LVGNFLRSGG FYVVQPILGG VDETGPHIYS IDPAGSILEE EYTVTGSGSQ 180
 YALGVLEQEF EDGLSIEEAK GVATKAIRSA VERDLASGNG INIAVVTEDG VDIQRHQNFE 240
 GLE 243
  GO:0005737   C:cytoplasm IEA:UniProtKB-SubCell
  GO:0019774   C:proteasome core complex, beta-subunit complex IDA:UniProtKB
  GO:0004175   F:endopeptidase activity IDA:UniProtKB
  GO:0004298   F:threonine-type endopeptidase activity IEA:UniProtKB-HAMAP
  GO:0010498   P:proteasomal protein catabolic process IDA:UniProtKB
  IPR019983   Pept_T1A_Psome_bsu_arc.
  IPR000243   Pept_T1A_subB.
  IPR001353   Proteasome_sua/b.
  IPR023333   Proteasome_suB-type.
  PF00227   Proteasome.
  PS51476   PROTEASOME_BETA_2.
  PR00141   PROTEASOME.