PAFA_BIFDB
ID PAFA_BIFDB Reviewed; 488 AA.
AC D2Q9D0;
DT 10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT 02-MAR-2010, sequence version 1.
DT 03-AUG-2022, entry version 62.
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=BDP_0755;
OS Bifidobacterium dentium (strain ATCC 27534 / DSM 20436 / JCM 1195 / Bd1).
OC Bacteria; Actinobacteria; Bifidobacteriales; Bifidobacteriaceae;
OC Bifidobacterium.
OX NCBI_TaxID=401473;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 27534 / DSM 20436 / JCM 1195 / Bd1;
RX PubMed=20041198; DOI=10.1371/journal.pgen.1000785;
RA Ventura M., Turroni F., Zomer A., Foroni E., Giubellini V., Bottacini F.,
RA Canchaya C., Claesson M.J., He F., Mantzourani M., Mulas L., Ferrarini A.,
RA Gao B., Delledonne M., Henrissat B., Coutinho P., Oggioni M., Gupta R.S.,
RA Zhang Z., Beighton D., Fitzgerald G.F., O'Toole P.W., van Sinderen D.;
RT "The Bifidobacterium dentium Bd1 genome sequence reflects its genetic
RT adaptation to the human oral cavity.";
RL PLoS Genet. 5:E1000785-E1000785(2009).
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; CP001750; ADB09416.1; -; Genomic_DNA.
DR AlphaFoldDB; D2Q9D0; -.
DR SMR; D2Q9D0; -.
DR STRING; 401473.BDP_0755; -.
DR EnsemblBacteria; ADB09416; ADB09416; BDP_0755.
DR KEGG; bde:BDP_0755; -.
DR eggNOG; COG0638; Bacteria.
DR HOGENOM; CLU_040524_1_0_11; -.
DR OMA; CVSQRAE; -.
DR UniPathway; UPA00997; -.
DR UniPathway; UPA00998; -.
DR Proteomes; UP000008693; 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.
PE 3: Inferred from homology;
KW ATP-binding; Ligase; Magnesium; Metal-binding; Nucleotide-binding;
KW Ubl conjugation pathway.
FT CHAIN 1..488
FT /note="Pup--protein ligase"
FT /id="PRO_0000395899"
FT ACT_SITE 81
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT BINDING 34
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT BINDING 77
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT BINDING 79
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT BINDING 87
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT BINDING 90
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
FT BINDING 453
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_02111"
SQ SEQUENCE 488 AA; 54068 MW; F646A78374D28956 CRC64;
MMPQLRDSGN HSTAPLDGRT RGEVDAFIRI FGIETEYGVS VTGADAPCDA GQTAMMMFQP
IVAQARSTNT YIENGSRLYL DVGSHPEYAT AEARDPMDAL ALDAAGELVM RDLAMDTQHR
LREGHGRRAI VHVFKNNADS AGHSFGCHEN YLVRRFVPLE TIEHELLPFL ITRQIFTGAG
RVGGQGFQIT QRADFLDEAV SSATTRSRPM VNTRDEPHAD PDAFRRLHVI IGDSNRSQWA
TMMKLATTHL VLCVIEQAGR EGRESGFARF AFADPGAANH AVSRDASGVG AVFDMADGDV
IRGGAVAVQE RYLAAVERFV EDHPEVGASL PRTDVHDVIA QWHEALEAFR SGDVDALADR
VDWVCKKRLF DALQARTGHL PASRLEQLDM DYHDVANGTV YASLCRRGGM RTLLGRDAAD
RAVHMPPDDT RAALRGRFVR EAKAKGARYS CDWTRLTLMS PHHSEMVLLD PFDFEESERF
RQMMDMLA
