ID   UBACT_HANXR             Reviewed;          63 AA.
AC   A0A1F6CTG8;
DT   25-OCT-2017, integrated into UniProtKB/Swiss-Prot.
DT   15-FEB-2017, sequence version 1.
DT   25-MAY-2022, entry version 10.
DE   RecName: Full=Prokaryotic ubiquitin-like protein UBact {ECO:0000303|PubMed:28087277};
GN   Name=ubact {ECO:0000303|PubMed:28087277};
GN   ORFNames=A3F84_05195 {ECO:0000312|EMBL:OGG52311.1};
OS   Handelsmanbacteria sp. (strain RIFCSPLOWO2_12_FULL_64_10).
OC   Bacteria; Candidatus Handelsmanbacteria.
OX   NCBI_TaxID=1817868;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RIFCSPLOWO2_12_FULL_64_10;
RX   PubMed=27774985; DOI=10.1038/ncomms13219;
RA   Anantharaman K., Brown C.T., Hug L.A., Sharon I., Castelle C.J.,
RA   Probst A.J., Thomas B.C., Singh A., Wilkins M.J., Karaoz U., Brodie E.L.,
RA   Williams K.H., Hubbard S.S., Banfield J.F.;
RT   "Thousands of microbial genomes shed light on interconnected biogeochemical
RT   processes in an aquifer system.";
RL   Nat. Commun. 7:13219-13219(2016).
RN   [2]
RP   PREDICTED FUNCTION.
RC   STRAIN=RIFCSPLOWO2_12_FULL_64_10;
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; MFKF01000144; OGG52311.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A1F6CTG8; -.
DR   SMR; A0A1F6CTG8; -.
DR   Proteomes; UP000178606; Unassembled WGS sequence.
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; Ubl conjugation pathway.
FT   CHAIN           1..63
FT                   /note="Prokaryotic ubiquitin-like protein UBact"
FT                   /id="PRO_0000441769"
FT   REGION          1..63
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        18..63
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   CROSSLNK        63
FT                   /note="Isoglutamyl lysine isopeptide (Glu-Lys) (interchain
FT                   with K-? in acceptor proteins)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   63 AA;  7356 MW;  9C101D9EF50EF0A5 CRC64;
     MSGRSTFGRF GPPSSEPWER KPGDDEGGPK RPKVERPDTN DLLKRMRRVD PNQSRRYRQR
     TGE