ID   PUP_FRACC               Reviewed;          72 AA.
AC   Q2J9Q2;
DT   19-JAN-2010, integrated into UniProtKB/Swiss-Prot.
DT   07-MAR-2006, sequence version 1.
DT   03-AUG-2022, entry version 72.
DE   RecName: Full=Prokaryotic ubiquitin-like protein Pup {ECO:0000255|HAMAP-Rule:MF_02106};
DE   AltName: Full=Bacterial ubiquitin-like modifier {ECO:0000255|HAMAP-Rule:MF_02106};
GN   Name=pup {ECO:0000255|HAMAP-Rule:MF_02106};
GN   OrderedLocusNames=Francci3_2628;
OS   Frankia casuarinae (strain DSM 45818 / CECT 9043 / CcI3).
OC   Bacteria; Actinobacteria; Frankiales; Frankiaceae; Frankia.
OX   NCBI_TaxID=106370;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 45818 / CECT 9043 / CcI3;
RX   PubMed=17151343; DOI=10.1101/gr.5798407;
RA   Normand P., Lapierre P., Tisa L.S., Gogarten J.P., Alloisio N.,
RA   Bagnarol E., Bassi C.A., Berry A.M., Bickhart D.M., Choisne N., Couloux A.,
RA   Cournoyer B., Cruveiller S., Daubin V., Demange N., Francino M.P.,
RA   Goltsman E., Huang Y., Kopp O.R., Labarre L., Lapidus A., Lavire C.,
RA   Marechal J., Martinez M., Mastronunzio J.E., Mullin B.C., Niemann J.,
RA   Pujic P., Rawnsley T., Rouy Z., Schenowitz C., Sellstedt A., Tavares F.,
RA   Tomkins J.P., Vallenet D., Valverde C., Wall L.G., Wang Y., Medigue C.,
RA   Benson D.R.;
RT   "Genome characteristics of facultatively symbiotic Frankia sp. strains
RT   reflect host range and host plant biogeography.";
RL   Genome Res. 17:7-15(2007).
CC   -!- FUNCTION: Protein modifier that is covalently attached to lysine
CC       residues of substrate proteins, thereby targeting them for proteasomal
CC       degradation. The tagging system is termed pupylation.
CC       {ECO:0000255|HAMAP-Rule:MF_02106}.
CC   -!- PATHWAY: Protein degradation; proteasomal Pup-dependent pathway.
CC       {ECO:0000255|HAMAP-Rule:MF_02106}.
CC   -!- SUBUNIT: Strongly interacts with the proteasome-associated ATPase ARC
CC       through a hydrophobic interface; the interacting region of Pup lies in
CC       its C-terminal half. There is one Pup binding site per ARC hexamer
CC       ring. {ECO:0000255|HAMAP-Rule:MF_02106}.
CC   -!- DOMAIN: The N-terminal unstructured half of Pup provides a signal
CC       required to initiate unfolding and degradation by the proteasome but is
CC       not needed for pupylation, while the C-terminal helical half of Pup
CC       interacts with ARC to target proteins to the proteasome.
CC       {ECO:0000255|HAMAP-Rule:MF_02106}.
CC   -!- PTM: Is modified by deamidation of its C-terminal glutamine to
CC       glutamate by the deamidase Dop, a prerequisite to the subsequent
CC       pupylation process. {ECO:0000255|HAMAP-Rule:MF_02106}.
CC   -!- SIMILARITY: Belongs to the prokaryotic ubiquitin-like protein family.
CC       {ECO:0000255|HAMAP-Rule:MF_02106}.
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DR   EMBL; CP000249; ABD11990.1; -; Genomic_DNA.
DR   RefSeq; WP_011437025.1; NZ_LRTJ01000046.1.
DR   AlphaFoldDB; Q2J9Q2; -.
DR   SMR; Q2J9Q2; -.
DR   STRING; 106370.Francci3_2628; -.
DR   EnsemblBacteria; ABD11990; ABD11990; Francci3_2628.
DR   KEGG; fra:Francci3_2628; -.
DR   eggNOG; ENOG50333JS; Bacteria.
DR   HOGENOM; CLU_183816_2_0_11; -.
DR   OMA; DTGGQKH; -.
DR   OrthoDB; 2059180at2; -.
DR   PhylomeDB; Q2J9Q2; -.
DR   UniPathway; UPA00997; -.
DR   Proteomes; UP000001937; Chromosome.
DR   GO; GO:0070628; F:proteasome binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0031386; F:protein tag; 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_02106; Pup; 1.
DR   InterPro; IPR008515; Ubiquitin-like_Pup.
DR   Pfam; PF05639; Pup; 1.
DR   TIGRFAMs; TIGR03687; pupylate_cterm; 1.
PE   3: Inferred from homology;
KW   Coiled coil; Isopeptide bond; Reference proteome; Ubl conjugation pathway.
FT   CHAIN           1..72
FT                   /note="Prokaryotic ubiquitin-like protein Pup"
FT                   /id="PRO_0000390582"
FT   REGION          1..41
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          28..66
FT                   /note="ARC ATPase binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02106"
FT   COILED          27..61
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02106"
FT   COMPBIAS        9..41
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOD_RES         72
FT                   /note="Deamidated glutamine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02106"
FT   CROSSLNK        72
FT                   /note="Isoglutamyl lysine isopeptide (Gln-Lys) (interchain
FT                   with K-? in acceptor proteins)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02106"
SQ   SEQUENCE   72 AA;  7998 MW;  CA98366AC9976C69 CRC64;
     MATRDSGGGQ QRADRRAEEI DDVATEDTSA SDLKERHEKL SEDVDSLLDE IDDVLEENAE
     EFVKGYVQKG GQ