ID   PUP_MYCBP               Reviewed;          64 AA.
AC   A1KKF4;
DT   19-JAN-2010, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 69.
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}; OrderedLocusNames=BCG_2128c;
OS   Mycobacterium bovis (strain BCG / Pasteur 1173P2).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium; Mycobacterium tuberculosis complex.
OX   NCBI_TaxID=410289;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BCG / Pasteur 1173P2;
RX   PubMed=17372194; DOI=10.1073/pnas.0700869104;
RA   Brosch R., Gordon S.V., Garnier T., Eiglmeier K., Frigui W., Valenti P.,
RA   Dos Santos S., Duthoy S., Lacroix C., Garcia-Pelayo C., Inwald J.K.,
RA   Golby P., Garcia J.N., Hewinson R.G., Behr M.A., Quail M.A., Churcher C.,
RA   Barrell B.G., Parkhill J., Cole S.T.;
RT   "Genome plasticity of BCG and impact on vaccine efficacy.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:5596-5601(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; AM408590; CAL72116.1; -; Genomic_DNA.
DR   RefSeq; WP_003411026.1; NC_008769.1.
DR   AlphaFoldDB; A1KKF4; -.
DR   SMR; A1KKF4; -.
DR   GeneID; 45426086; -.
DR   KEGG; mbb:BCG_2128c; -.
DR   HOGENOM; CLU_183816_1_0_11; -.
DR   OMA; AGQERME; -.
DR   UniPathway; UPA00997; -.
DR   Proteomes; UP000001472; 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; Ubl conjugation pathway.
FT   CHAIN           1..64
FT                   /note="Prokaryotic ubiquitin-like protein Pup"
FT                   /id="PRO_0000390589"
FT   REGION          1..37
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   REGION          21..58
FT                   /note="ARC ATPase binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02106"
FT   COILED          23..52
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02106"
FT   COMPBIAS        21..36
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOD_RES         64
FT                   /note="Deamidated glutamine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02106"
FT   CROSSLNK        64
FT                   /note="Isoglutamyl lysine isopeptide (Gln-Lys) (interchain
FT                   with K-? in acceptor proteins)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02106"
SQ   SEQUENCE   64 AA;  6944 MW;  7D958B770D8766E3 CRC64;
     MAQEQTKRGG GGGDDDDIAG STAAGQERRE KLTEETDDLL DEIDDVLEEN AEDFVRAYVQ
     KGGQ