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PSA_SACVD
ID   PSA_SACVD               Reviewed;         255 AA.
AC   C7MWV6;
DT   10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT   13-OCT-2009, sequence version 1.
DT   25-MAY-2022, entry version 67.
DE   RecName: Full=Proteasome subunit alpha {ECO:0000255|HAMAP-Rule:MF_00289};
DE   AltName: Full=20S proteasome alpha subunit {ECO:0000255|HAMAP-Rule:MF_00289};
DE   AltName: Full=Proteasome core protein PrcA {ECO:0000255|HAMAP-Rule:MF_00289};
GN   Name=prcA {ECO:0000255|HAMAP-Rule:MF_00289}; OrderedLocusNames=Svir_22020;
OS   Saccharomonospora viridis (strain ATCC 15386 / DSM 43017 / JCM 3036 / NBRC
OS   12207 / P101).
OC   Bacteria; Actinobacteria; Pseudonocardiales; Pseudonocardiaceae;
OC   Saccharomonospora.
OX   NCBI_TaxID=471857;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 15386 / DSM 43017 / JCM 3036 / NBRC 12207 / P101;
RX   PubMed=21304650; DOI=10.4056/sigs.20263;
RA   Pati A., Sikorski J., Nolan M., Lapidus A., Copeland A.,
RA   Glavina Del Rio T., Lucas S., Chen F., Tice H., Pitluck S., Cheng J.F.,
RA   Chertkov O., Brettin T., Han C., Detter J.C., Kuske C., Bruce D.,
RA   Goodwin L., Chain P., D'haeseleer P., Chen A., Palaniappan K., Ivanova N.,
RA   Mavromatis K., Mikhailova N., Rohde M., Tindall B.J., Goker M., Bristow J.,
RA   Eisen J.A., Markowitz V., Hugenholtz P., Kyrpides N.C., Klenk H.P.;
RT   "Complete genome sequence of Saccharomonospora viridis type strain
RT   (P101).";
RL   Stand. Genomic Sci. 1:141-149(2009).
CC   -!- FUNCTION: Component of the proteasome core, a large protease complex
CC       with broad specificity involved in protein degradation.
CC       {ECO:0000255|HAMAP-Rule:MF_00289}.
CC   -!- ACTIVITY REGULATION: The formation of the proteasomal ATPase ARC-20S
CC       proteasome complex, likely via the docking of the C-termini of ARC into
CC       the intersubunit pockets in the alpha-rings, may trigger opening of the
CC       gate for substrate entry. Interconversion between the open-gate and
CC       close-gate conformations leads to a dynamic regulation of the 20S
CC       proteasome proteolysis activity. {ECO:0000255|HAMAP-Rule:MF_00289}.
CC   -!- PATHWAY: Protein degradation; proteasomal Pup-dependent pathway.
CC       {ECO:0000255|HAMAP-Rule:MF_00289}.
CC   -!- SUBUNIT: The 20S proteasome core is composed of 14 alpha and 14 beta
CC       subunits that assemble into four stacked heptameric rings, resulting in
CC       a barrel-shaped structure. The two inner rings, each composed of seven
CC       catalytic beta subunits, are sandwiched by two outer rings, each
CC       composed of seven alpha subunits. The catalytic chamber with the active
CC       sites is on the inside of the barrel. Has a gated structure, the ends
CC       of the cylinder being occluded by the N-termini of the alpha-subunits.
CC       Is capped by the proteasome-associated ATPase, ARC. {ECO:0000255|HAMAP-
CC       Rule:MF_00289}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00289}.
CC   -!- SIMILARITY: Belongs to the peptidase T1A family. {ECO:0000255|HAMAP-
CC       Rule:MF_00289}.
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DR   EMBL; CP001683; ACU97210.1; -; Genomic_DNA.
DR   RefSeq; WP_015786523.1; NC_013159.1.
DR   AlphaFoldDB; C7MWV6; -.
DR   SMR; C7MWV6; -.
DR   STRING; 471857.Svir_22020; -.
DR   EnsemblBacteria; ACU97210; ACU97210; Svir_22020.
DR   KEGG; svi:Svir_22020; -.
DR   eggNOG; COG0638; Bacteria.
DR   HOGENOM; CLU_071031_0_0_11; -.
DR   OMA; QIYRLPH; -.
DR   OrthoDB; 1243753at2; -.
DR   UniPathway; UPA00997; -.
DR   Proteomes; UP000000841; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0019773; C:proteasome core complex, alpha-subunit complex; IEA:UniProtKB-UniRule.
DR   GO; GO:0004298; F:threonine-type endopeptidase activity; IEA:InterPro.
DR   GO; GO:0019941; P:modification-dependent protein catabolic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0010498; P:proteasomal protein catabolic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.60.20.10; -; 1.
DR   HAMAP; MF_00289_B; Proteasome_A_B; 1.
DR   InterPro; IPR029055; Ntn_hydrolases_N.
DR   InterPro; IPR023332; Proteasome_alpha-type.
DR   InterPro; IPR022296; Proteasome_asu_bac.
DR   InterPro; IPR001353; Proteasome_sua/b.
DR   PANTHER; PTHR11599:SF69; PTHR11599:SF69; 1.
DR   Pfam; PF00227; Proteasome; 1.
DR   SUPFAM; SSF56235; SSF56235; 1.
DR   TIGRFAMs; TIGR03691; 20S_bact_alpha; 1.
DR   PROSITE; PS51475; PROTEASOME_ALPHA_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Proteasome; Reference proteome.
FT   CHAIN           1..255
FT                   /note="Proteasome subunit alpha"
FT                   /id="PRO_0000397170"
FT   REGION          190..255
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        206..225
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   255 AA;  28042 MW;  EABAB138E0459DC2 CRC64;
     MTMPLYASPE QLMRERSELA RKGIARGRSV VVLKYRGGVL FVAENPSPTL HKVSEIYDRI
     GFAAVGRYSE FESLRRGGIR HVDLQGYMYD RRDVNARALA NVYAQTLSTI FTEQLKPFEV
     EICVAEVGNN SSEDELYRLT YDGSIVMDEP KFVVMGGQTD AINAKLRETY SDDMELATAL
     AVAVEALRAP STSGASGNGE TEPSKLEVAI LDRERPGRKF RRITGAELES LMPAEDERTG
     SSGGSDKSSG DGEQN
 
 
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