ID   UBACT_NITMO             Reviewed;          66 AA.
AC   A0A0K2G9F6;
DT   25-OCT-2017, integrated into UniProtKB/Swiss-Prot.
DT   11-NOV-2015, sequence version 1.
DT   25-MAY-2022, entry version 14.
DE   RecName: Full=Prokaryotic ubiquitin-like protein UBact {ECO:0000303|PubMed:28087277};
GN   Name=ubact {ECO:0000303|PubMed:28087277};
GN   ORFNames=NITMOv2_0802 {ECO:0000312|EMBL:ALA57237.1};
OS   Nitrospira moscoviensis.
OC   Bacteria; Nitrospirae; Nitrospirales; Nitrospiraceae; Nitrospira.
OX   NCBI_TaxID=42253;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NSP M-1;
RX   PubMed=26305944; DOI=10.1073/pnas.1506533112;
RA   Koch H., Lucker S., Albertsen M., Kitzinger K., Herbold C., Spieck E.,
RA   Nielsen P.H., Wagner M., Daims H.;
RT   "Expanded metabolic versatility of ubiquitous nitrite-oxidizing bacteria
RT   from the genus Nitrospira.";
RL   Proc. Natl. Acad. Sci. U.S.A. 112:11371-11376(2015).
RN   [2]
RP   PREDICTED FUNCTION.
RC   STRAIN=NSP M-1;
RX   PubMed=28087277; DOI=10.1016/j.bbrc.2017.01.037;
RA   Lehmann G., Udasin R.G., Livneh I., Ciechanover A.;
RT   "Identification of UBact, a ubiquitin-like protein, along with other
RT   homologous components of a conjugation system and the proteasome in
RT   different gram-negative bacteria.";
RL   Biochem. Biophys. Res. Commun. 483:946-950(2017).
CC   -!- FUNCTION: May function as a protein modifier covalently attached to
CC       lysine residues of substrate proteins. This may serve to target the
CC       modified proteins for degradation by proteasomes.
CC       {ECO:0000305|PubMed:28087277}.
CC   -!- SIMILARITY: Belongs to the ubiquitin-like protein UBact family.
CC       {ECO:0000255|HAMAP-Rule:MF_02133}.
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DR   EMBL; CP011801; ALA57237.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A0K2G9F6; -.
DR   SMR; A0A0K2G9F6; -.
DR   EnsemblBacteria; ALA57237; ALA57237; NITMOv2_0802.
DR   KEGG; nmv:NITMOv2_0802; -.
DR   PATRIC; fig|42253.5.peg.787; -.
DR   OMA; FRMEERR; -.
DR   Proteomes; UP000069205; Chromosome.
DR   GO; GO:0031386; F:protein tag; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_02133; UBact; 1.
DR   InterPro; IPR037543; UBact.
PE   3: Inferred from homology;
KW   Isopeptide bond; Reference proteome; Ubl conjugation pathway.
FT   CHAIN           1..66
FT                   /note="Prokaryotic ubiquitin-like protein UBact"
FT                   /id="PRO_0000441763"
FT   REGION          1..66
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        34..66
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   CROSSLNK        66
FT                   /note="Isoglutamyl lysine isopeptide (Glu-Lys) (interchain
FT                   with K-? in acceptor proteins)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   66 AA;  7612 MW;  E507BAF71E362A14 CRC64;
     MNMRYTLMPE RREGPVDPMP QSPSPSDEGG GPRRPETGSP DKDNLLKRMR KVDPKQAERY
     RQRTGE