PAFA_MYCTK
ID PAFA_MYCTK Reviewed; 452 AA.
AC C6DPW7;
DT 10-AUG-2010, integrated into UniProtKB/Swiss-Prot.
DT 01-SEP-2009, 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=TBMG_01885;
OS Mycobacterium tuberculosis (strain KZN 1435 / MDR).
OC Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC Mycobacterium; Mycobacterium tuberculosis complex.
OX NCBI_TaxID=478434;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=KZN 1435 / MDR;
RA Murray M., Pillay M., Borowsky M.L., Young S.K., Zeng Q., Koehrsen M.,
RA Alvarado L., Berlin A.M., Borenstein D., Chen Z., Engels R., Freedman E.,
RA Gellesch M., Goldberg J., Griggs A., Gujja S., Heiman D.I., Hepburn T.A.,
RA Howarth C., Jen D., Larson L., Lewis B., Mehta T., Park D., Pearson M.,
RA Roberts A., Saif S., Shea T.D., Shenoy N., Sisk P., Stolte C., Sykes S.N.,
RA Walk T., White J., Yandava C., Haas B., Nusbaum C., Galagan J., Birren B.;
RT "The genome sequence of Mycobacterium tuberculosis strain KZN 1435.";
RL Submitted (JUL-2009) 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; CP001658; ACT24950.1; -; Genomic_DNA.
DR RefSeq; WP_003410781.1; NZ_KK341220.1.
DR AlphaFoldDB; C6DPW7; -.
DR SMR; C6DPW7; -.
DR GeneID; 45426074; -.
DR KEGG; mtb:TBMG_01885; -.
DR PATRIC; fig|478434.13.peg.2233; -.
DR HOGENOM; CLU_040524_0_1_11; -.
DR OMA; CVSQRAE; -.
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_0000395937"
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; 51384 MW; 12AF8B7872D2F5EA CRC64;
MQRRIMGIET EFGVTCTFHG HRRLSPDEVA RYLFRRVVSW GRSSNVFLRN GARLYLDVGS
HPEYATAECD SLVQLVTHDR AGEWVLEDLL VDAEQRLADE GIGGDIYLFK NNTDSAGNSY
GCHENYLIVR AGEFSRISDV LLPFLVTRQL ICGAGKVLQT PKAATYCLSQ RAEHIWEGVS
SATTRSRPII NTRDEPHADA EKYRRLHVIV GDSNMSETTT MLKVGTAALV LEMIESGVAF
RDFSLDNPIR AIREVSHDVT GRRPVRLAGG RQASALDIQR EYYTRAVEHL QTREPNAQIE
QVVDLWGRQL DAVESQDFAK VDTEIDWVIK RKLFQRYQDR YDMELSHPKI AQLDLAYHDI
KRGRGIFDLL QRKGLAARVT TDEEIAEAVD QPPQTTRARL RGEFISAAQE AGRDFTVDWV
HLKLNDQAQR TVLCKDPFRA VDERVKRLIA SM
