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PAFA_BIFLS
ID   PAFA_BIFLS              Reviewed;         485 AA.
AC   B7GUN9; E8MMK1;
DT   10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-2022, entry version 69.
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};
GN   OrderedLocusNames=Blon_2124, BLIJ_2201;
OS   Bifidobacterium longum subsp. infantis (strain ATCC 15697 / DSM 20088 / JCM
OS   1222 / NCTC 11817 / S12).
OC   Bacteria; Actinobacteria; Bifidobacteriales; Bifidobacteriaceae;
OC   Bifidobacterium.
OX   NCBI_TaxID=391904;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 15697 / DSM 20088 / JCM 1222 / NCTC 11817 / S12;
RX   PubMed=19033196; DOI=10.1073/pnas.0809584105;
RA   Sela D.A., Chapman J., Adeuya A., Kim J.H., Chen F., Whitehead T.R.,
RA   Lapidus A., Rokhsar D.S., Lebrilla C.B., German J.B., Price N.P.,
RA   Richardson P.M., Mills D.A.;
RT   "The genome sequence of Bifidobacterium longum subsp. infantis reveals
RT   adaptations for milk utilization within the infant microbiome.";
RL   Proc. Natl. Acad. Sci. U.S.A. 105:18964-18969(2008).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 15697 / DSM 20088 / JCM 1222 / NCTC 11817 / S12;
RX   PubMed=21270894; DOI=10.1038/nature09646;
RA   Fukuda S., Toh H., Hase K., Oshima K., Nakanishi Y., Yoshimura K., Tobe T.,
RA   Clarke J.M., Topping D.L., Suzuki T., Taylor T.D., Itoh K., Kikuchi J.,
RA   Morita H., Hattori M., Ohno H.;
RT   "Bifidobacteria can protect from enteropathogenic infection through
RT   production of acetate.";
RL   Nature 469:543-547(2011).
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; CP001095; ACJ53185.1; -; Genomic_DNA.
DR   EMBL; AP010889; BAJ69778.1; -; Genomic_DNA.
DR   RefSeq; WP_012578389.1; NZ_JDTT01000015.1.
DR   AlphaFoldDB; B7GUN9; -.
DR   SMR; B7GUN9; -.
DR   PRIDE; B7GUN9; -.
DR   EnsemblBacteria; ACJ53185; ACJ53185; Blon_2124.
DR   KEGG; bln:Blon_2124; -.
DR   KEGG; blon:BLIJ_2201; -.
DR   PATRIC; fig|391904.8.peg.2203; -.
DR   HOGENOM; CLU_040524_0_1_11; -.
DR   OMA; CVSQRAE; -.
DR   UniPathway; UPA00997; -.
DR   UniPathway; UPA00998; -.
DR   Proteomes; UP000001360; Chromosome.
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..485
FT                   /note="Pup--protein ligase"
FT                   /id="PRO_0000395902"
FT   ACT_SITE        80
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         33
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         76
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         78
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         86
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         89
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT   BINDING         451
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
SQ   SEQUENCE   485 AA;  54077 MW;  80C3006A63328B68 CRC64;
     MPQLRDSGTR SLHATEPVPS AEMDGFCRIF GVETEYGVAV TGAERPVDAG QVAMTMFQPI
     VSRSRSTNTY LANGSRLYLD VGSHPEYATA EARDPREALG QDLAGEHVMR NLALKAQRKL
     RESYSEHATI HVFKNNVDSA GHAFGCHENY LVRRFVPLET IEHQLLPFLI TRQLYTGAGR
     MTPDGFQITQ RADFLDEAVS SATTRSRPMV NTRDEPHADP DSFRRLHVII GDSNRSQWST
     WMKLAVTHLV LCAIEDAFRL GTPSGFEHCA FADPAAANRT VSRFLDDPHA ELTLESGESV
     SALGLQRRYY AAVKAFIETH GDALASSLPA TTIVTIMGEW SRVLDALERG AYDALADRVD
     WAAKKRLFDA LKRRRPDVTF AQMEQLELDY HDIANGRLYG SLTSRNQMRE LLTGDDVEYA
     VHNPPTDTRA ALRGRFVDAA LNVGAQFSAD WTHLTLTAPE RREAILLDPF EAEPTPEFEQ
     LMEAL
 
 
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