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PAFA_MYCSS
ID   PAFA_MYCSS              Reviewed;         452 AA.
AC   Q1B959;
DT   10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT   11-JUL-2006, sequence version 1.
DT   03-AUG-2022, entry version 76.
DE   RecName: Full=Pup--protein ligase {ECO:0000255|HAMAP-Rule:MF_02111};
DE            EC=6.3.1.19 {ECO:0000255|HAMAP-Rule:MF_02111};
DE   AltName: Full=Proteasome accessory factor A {ECO:0000255|HAMAP-Rule:MF_02111};
DE   AltName: Full=Pup-conjugating enzyme {ECO:0000255|HAMAP-Rule:MF_02111};
GN   Name=pafA {ECO:0000255|HAMAP-Rule:MF_02111}; OrderedLocusNames=Mmcs_2467;
OS   Mycobacterium sp. (strain MCS).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; unclassified Mycobacterium.
OX   NCBI_TaxID=164756;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MCS;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Martinez M., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Kim E., Miller C.D., Hughes J.E., Anderson A.J., Sims R.C., Richardson P.;
RT   "Complete sequence of chromosome of Mycobacterium sp. MCS.";
RL   Submitted (JUN-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the covalent attachment of the prokaryotic
CC       ubiquitin-like protein modifier Pup to the proteasomal substrate
CC       proteins, thereby targeting them for proteasomal degradation. This
CC       tagging system is termed pupylation. The ligation reaction involves the
CC       side-chain carboxylate of the C-terminal glutamate of Pup and the side-
CC       chain amino group of a substrate lysine. {ECO:0000255|HAMAP-
CC       Rule:MF_02111}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + [prokaryotic ubiquitin-like protein]-L-glutamate +
CC         [protein]-L-lysine = ADP + phosphate + N(6)-([prokaryotic ubiquitin-
CC         like protein]-gamma-L-glutamyl)-[protein]-L-lysine.; EC=6.3.1.19;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_02111};
CC   -!- PATHWAY: Protein degradation; proteasomal Pup-dependent pathway.
CC       {ECO:0000255|HAMAP-Rule:MF_02111}.
CC   -!- PATHWAY: Protein modification; protein pupylation. {ECO:0000255|HAMAP-
CC       Rule:MF_02111}.
CC   -!- MISCELLANEOUS: The reaction mechanism probably proceeds via the
CC       activation of Pup by phosphorylation of its C-terminal glutamate, which
CC       is then subject to nucleophilic attack by the substrate lysine,
CC       resulting in an isopeptide bond and the release of phosphate as a good
CC       leaving group. {ECO:0000255|HAMAP-Rule:MF_02111}.
CC   -!- SIMILARITY: Belongs to the Pup ligase/Pup deamidase family. Pup-
CC       conjugating enzyme subfamily. {ECO:0000255|HAMAP-Rule:MF_02111}.
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DR   EMBL; CP000384; ABG08575.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q1B959; -.
DR   SMR; Q1B959; -.
DR   KEGG; mmc:Mmcs_2467; -.
DR   HOGENOM; CLU_040524_0_1_11; -.
DR   OMA; CVSQRAE; -.
DR   BioCyc; MSP164756:G1G6O-2518-MON; -.
DR   UniPathway; UPA00997; -.
DR   UniPathway; UPA00998; -.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0016879; F:ligase activity, forming carbon-nitrogen bonds; IEA:InterPro.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0019787; F:ubiquitin-like protein transferase activity; IEA:UniProtKB-UniRule.
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   GO; GO:0070490; P:protein pupylation; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_02111; Pup_ligase; 1.
DR   InterPro; IPR022279; Pup_ligase.
DR   InterPro; IPR004347; Pup_ligase/deamidase.
DR   PANTHER; PTHR42307; PTHR42307; 1.
DR   Pfam; PF03136; Pup_ligase; 1.
DR   PIRSF; PIRSF018077; UCP018077; 1.
DR   TIGRFAMs; TIGR03686; pupylate_PafA; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Ligase; Magnesium; Metal-binding; Nucleotide-binding;
KW   Ubl conjugation pathway.
FT   CHAIN           1..452
FT                   /note="Pup--protein ligase"
FT                   /id="PRO_0000395934"
FT   ACT_SITE        57
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         9
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         53
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         55
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         63
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         66
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         419
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
SQ   SEQUENCE   452 AA;  51389 MW;  F51630AD847911A4 CRC64;
     MQRRIMGIET EFGVTCTFHG HRRLSPDEVA RYLFRRVVSW GRSSNVFLRN GARLYLDVGS
     HPEYATAECD NLIQLVTHDR AGERVLEDLL IDAEQRLADE GIGGDIYLFK NNTDSAGNSY
     GCHENYLIVR AGEFSRISDV LLPFLVTRQL ICGAGKVLQT PKAATFCLSQ RAEHIWEGVS
     SATTRSRPII NTRDEPHADA EKYRRLHVIV GDSNMCESTT MLKVGTASLV LEMIEAGVPF
     RDFSLDNPIR AIREVSHDLT GRRPVRLAGG RQASALDIQR EYYSRAVDYL QTREPNSQIE
     QVVDLWGRQL DAVESQDFAK VDTEIDWVIK RKLFQRYQDR YNMELSDPKI SQLDLAYHDI
     KRGRGVFDLL QRKGLAARIT TDEEIDAAVD TPPQTTRAKL RGEFISAAQE AGRDFTVDWV
     HLKLNDQAQR TVLCKDPFRS VDERVKRLIA SM
 
 
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