PTPA_STAA3
ID PTPA_STAA3 Reviewed; 154 AA.
AC Q2FFL4;
DT 11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT 21-MAR-2006, sequence version 1.
DT 03-AUG-2022, entry version 81.
DE RecName: Full=Low molecular weight protein-tyrosine-phosphatase PtpA;
DE EC=3.1.3.48;
DE AltName: Full=Phosphotyrosine phosphatase A;
DE Short=PTPase A;
GN Name=ptpA; OrderedLocusNames=SAUSA300_1862;
OS Staphylococcus aureus (strain USA300).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=367830;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=USA300;
RX PubMed=16517273; DOI=10.1016/s0140-6736(06)68231-7;
RA Diep B.A., Gill S.R., Chang R.F., Phan T.H., Chen J.H., Davidson M.G.,
RA Lin F., Lin J., Carleton H.A., Mongodin E.F., Sensabaugh G.F.,
RA Perdreau-Remington F.;
RT "Complete genome sequence of USA300, an epidemic clone of community-
RT acquired meticillin-resistant Staphylococcus aureus.";
RL Lancet 367:731-739(2006).
CC -!- FUNCTION: Secreted tyrosine phosphatase that plays a critical role
CC during infection as a bacterial effector protein that counteracts host
CC defenses. Required for intramacrophage survival.
CC {ECO:0000250|UniProtKB:A0A0H3K9F2}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H2O + O-phospho-L-tyrosyl-[protein] = L-tyrosyl-[protein] +
CC phosphate; Xref=Rhea:RHEA:10684, Rhea:RHEA-COMP:10136, Rhea:RHEA-
CC COMP:10137, ChEBI:CHEBI:15377, ChEBI:CHEBI:43474, ChEBI:CHEBI:46858,
CC ChEBI:CHEBI:82620; EC=3.1.3.48;
CC Evidence={ECO:0000250|UniProtKB:A0A0H3K9F2};
CC -!- SUBUNIT: Interacts with host CORO1A.
CC {ECO:0000250|UniProtKB:A0A0H3K9F2}.
CC -!- SUBCELLULAR LOCATION: Secreted {ECO:0000250|UniProtKB:A0A0H3K9F2}.
CC Note=Secreted intracellularly upon bacterial infection of macrophages.
CC {ECO:0000250|UniProtKB:A0A0H3K9F2}.
CC -!- PTM: Phosophorylations at Tyr-122 and Tyr-123 are essential for
CC phosphatase activity. {ECO:0000250|UniProtKB:A0A0H3K9F2}.
CC -!- SIMILARITY: Belongs to the low molecular weight phosphotyrosine protein
CC phosphatase family. {ECO:0000305}.
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DR EMBL; CP000255; ABD21234.1; -; Genomic_DNA.
DR RefSeq; WP_000228666.1; NZ_CP027476.1.
DR AlphaFoldDB; Q2FFL4; -.
DR SMR; Q2FFL4; -.
DR EnsemblBacteria; ABD21234; ABD21234; SAUSA300_1862.
DR KEGG; saa:SAUSA300_1862; -.
DR HOGENOM; CLU_071415_2_3_9; -.
DR OMA; TGSWHVG; -.
DR Proteomes; UP000001939; Chromosome.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0004725; F:protein tyrosine phosphatase activity; IEA:UniProtKB-EC.
DR GO; GO:0006470; P:protein dephosphorylation; IEA:InterPro.
DR InterPro; IPR023485; Ptyr_pPase.
DR InterPro; IPR036196; Ptyr_pPase_sf.
DR InterPro; IPR017867; Tyr_phospatase_low_mol_wt.
DR Pfam; PF01451; LMWPc; 1.
DR PRINTS; PR00719; LMWPTPASE.
DR SMART; SM00226; LMWPc; 1.
DR SUPFAM; SSF52788; SSF52788; 1.
PE 3: Inferred from homology;
KW Hydrolase; Phosphoprotein; Protein phosphatase; Secreted.
FT CHAIN 1..154
FT /note="Low molecular weight protein-tyrosine-phosphatase
FT PtpA"
FT /id="PRO_0000300665"
FT ACT_SITE 8
FT /note="Nucleophile"
FT /evidence="ECO:0000250|UniProtKB:P11064"
FT ACT_SITE 14
FT /evidence="ECO:0000250|UniProtKB:P11064"
FT ACT_SITE 120
FT /note="Proton donor"
FT /evidence="ECO:0000250|UniProtKB:P11064"
SQ SEQUENCE 154 AA; 17491 MW; 67E81E0B8125B1E8 CRC64;
MVDVAFVCLG NICRSPMAEA IMRQRLKDRN IHDIKVHSRG TGSWNLGEPP HEGTQKILNK
HNIPFDGMIS ELFEATDDFD YIVAMDQSNV DNIKSINPNL KGQLFKLLEF SNMEESDVPD
PYYTNNFEGV YDMVLSSCDN LIDYIVKDAN LKEG