UniProt Accession

 PSA1_YEAST; P21243; D6VUC6; P15708 

Genbank Protein ID

 M31430; X56971; M55440; M63641; X56732; S58126; Z72533; BK006941 

Genbank Nucleotide ID

 AAA35020.1; CAA40292.1; AAA35228.1; AAA34909.1; CAA40056.1; AAD13894.1; CAA96711.1; DAA08087.1 

Protein Name

 Proteasome subunit alpha type-1 

Protein Synonyms/Alias

 Macropain subunit C7-alpha; Multicatalytic endopeptidase complex C7; Proteasome component C7-alpha; Proteasome component Y8; Proteinase YSCE subunit 7; SCL1 suppressor protein 

Gene Name

 SCL1 

Gene Synonyms/Alias

 PRC2; PRS2; YGL011C 

Created Date

 July 27, 2013 

Organism

 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) 

NCBI Taxa ID

 559292 

Lysine Modification

Position	Peptide	Type	References
98	RNAALRAKAEAAEFR	ubiquitination	[1]
107	EAAEFRYKYGYDMPC	acetylation	[2]
119	MPCDVLAKRMANLSQ	ubiquitination	[1]
167	AGYYVGYKATATGPK	ubiquitination	[1]
232	VGVATKDKFFTLSAE	ubiquitination	[1, 3]

Reference

 [1] Global analysis of phosphorylation and ubiquitylation cross-talk in protein degradation.
 Swaney DL, Beltrao P, Starita L, Guo A, Rush J, Fields S, Krogan NJ, Villén J.
 Nat Methods. 2013 Jul;10(7):676-82. [PMID: 23749301]
 [2] Proteome-wide analysis of lysine acetylation suggests its broad regulatory scope in Saccharomyces cerevisiae.
 Henriksen P, Wagner SA, Weinert BT, Sharma S, Bacinskaja G, Rehman M, Juffer AH, Walther TC, Lisby M, Choudhary C.
 Mol Cell Proteomics. 2012 Nov;11(11):1510-22. [PMID: 22865919]
 [3] Sites of ubiquitin attachment in Saccharomyces cerevisiae.
 Starita LM, Lo RS, Eng JK, von Haller PD, Fields S.
 Proteomics. 2012 Jan;12(2):236-40. [PMID: 22106047] 

Functional Description

 The proteasome degrades poly-ubiquitinated proteins in the cytoplasm and in the nucleus. It is essential for the regulated turnover of proteins and for the removal of misfolded proteins. The proteasome is a multicatalytic proteinase complex that is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. It has an ATP-dependent proteolytic activity. 

Sequence Annotation

 MOD_RES 237 237 Phosphoserine.  

Keyword

 3D-structure; Complete proteome; Cytoplasm; Direct protein sequencing; Hydrolase; Nucleus; Phosphoprotein; Protease; Proteasome; Reference proteome; Threonine protease. 

Sequence Source

 UniProt (SWISSPROT/TrEMBL); GenBank; EMBL 

Protein Length

 252 AA 

Protein Sequence

Gene Ontology

 GO:0005739; C:mitochondrion; IDA:SGD.
 GO:0042175; C:nuclear outer membrane-endoplasmic reticulum membrane network; IC:SGD.
 GO:0005634; C:nucleus; IC:SGD.
 GO:0019773; C:proteasome core complex, alpha-subunit complex; IDA:SGD.
 GO:0034515; C:proteasome storage granule; IC:SGD.
 GO:0004298; F:threonine-type endopeptidase activity; IEA:UniProtKB-KW.
 GO:0043161; P:proteasomal ubiquitin-dependent protein catabolic process; IDA:SGD.
 GO:0010499; P:proteasomal ubiquitin-independent protein catabolic process; IDA:SGD. 

Interpro

 IPR000426; Proteasome_asu_N.
 IPR023332; Proteasome_suA-type.
 IPR001353; Proteasome_sua/b. 

Pfam

 PF00227; Proteasome
 PF10584; Proteasome_A_N 

SMART

 SM00948; Proteasome_A_N 

PROSITE

 PS00388; PROTEASOME_A_1
 PS51475; PROTEASOME_A_2 

PRINTS