ID   NB2_MYCVP               Reviewed;         209 AA.
AC   A1TFC6;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 79.
DE   RecName: Full=Peroxynitrite isomerase 2;
DE            EC=5.99.-.- {ECO:0000255|HAMAP-Rule:MF_01297};
DE   AltName: Full=Ferric nitrobindin;
DE            Short=Nb(III);
GN   OrderedLocusNames=Mvan_5105;
OS   Mycolicibacterium vanbaalenii (strain DSM 7251 / JCM 13017 / BCRC 16820 /
OS   KCTC 9966 / NRRL B-24157 / PYR-1) (Mycobacterium vanbaalenii).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycolicibacterium.
OX   NCBI_TaxID=350058;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 7251 / JCM 13017 / BCRC 16820 / KCTC 9966 / NRRL B-24157 /
RC   PYR-1;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Singan V., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Anderson I.J., Miller C., Richardson P.;
RT   "Complete sequence of Mycobacterium vanbaalenii PYR-1.";
RL   Submitted (DEC-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Heme-binding protein able to scavenge peroxynitrite and to
CC       protect free L-tyrosine against peroxynitrite-mediated nitration, by
CC       acting as a peroxynitrite isomerase that converts peroxynitrite to
CC       nitrate. Therefore, this protein likely plays a role in peroxynitrite
CC       sensing and in the detoxification of reactive nitrogen and oxygen
CC       species (RNS and ROS, respectively). Is able to bind nitric oxide (NO)
CC       in vitro, but may act as a sensor of peroxynitrite levels in vivo.
CC       {ECO:0000255|HAMAP-Rule:MF_01297}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=peroxynitrite = nitrate; Xref=Rhea:RHEA:63116,
CC         ChEBI:CHEBI:17632, ChEBI:CHEBI:25941; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01297};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:63117;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01297};
CC   -!- COFACTOR:
CC       Name=heme b; Xref=ChEBI:CHEBI:60344;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01297};
CC       Note=Binds 1 heme b group per subunit, that coordinates a highly
CC       solvent-exposed Fe(III) atom. {ECO:0000255|HAMAP-Rule:MF_01297};
CC   -!- PATHWAY: Nitrogen metabolism. {ECO:0000255|HAMAP-Rule:MF_01297}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01297}.
CC   -!- DOMAIN: Forms a 10-stranded antiparallel beta-barrel structure able to
CC       accommodate a hydrophobic ligand in its interior. In fact, this fold
CC       hosts the heme group, which is located in a wide surface cleft.
CC       {ECO:0000255|HAMAP-Rule:MF_01297}.
CC   -!- SIMILARITY: Belongs to the nitrobindin family. {ECO:0000255|HAMAP-
CC       Rule:MF_01297}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000511; ABM15876.1; -; Genomic_DNA.
DR   RefSeq; WP_011782246.1; NC_008726.1.
DR   AlphaFoldDB; A1TFC6; -.
DR   SMR; A1TFC6; -.
DR   STRING; 350058.Mvan_5105; -.
DR   EnsemblBacteria; ABM15876; ABM15876; Mvan_5105.
DR   KEGG; mva:Mvan_5105; -.
DR   eggNOG; COG4044; Bacteria.
DR   HOGENOM; CLU_085483_0_0_11; -.
DR   OMA; EKCNFGQ; -.
DR   OrthoDB; 1524197at2; -.
DR   Proteomes; UP000009159; Chromosome.
DR   GO; GO:0020037; F:heme binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0062213; F:peroxynitrite isomerase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd07828; lipocalin_heme-bd-THAP4-like; 1.
DR   Gene3D; 2.40.128.20; -; 1.
DR   HAMAP; MF_01297; nitrobindin; 1.
DR   InterPro; IPR012674; Calycin.
DR   InterPro; IPR022939; Nb(III)_bact/plant.
DR   InterPro; IPR045165; Nitrobindin.
DR   InterPro; IPR014878; THAP4-like_heme-bd.
DR   PANTHER; PTHR15854; PTHR15854; 1.
DR   Pfam; PF08768; THAP4_heme-bd; 1.
DR   SUPFAM; SSF50814; SSF50814; 1.
PE   3: Inferred from homology;
KW   Heme; Iron; Isomerase; Metal-binding; Reference proteome.
FT   CHAIN           1..209
FT                   /note="Peroxynitrite isomerase 2"
FT                   /id="PRO_0000356940"
FT   MOTIF           56..62
FT                   /note="GXWXGXG"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01297"
FT   BINDING         172
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01297"
FT   BINDING         199
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01297"
SQ   SEQUENCE   209 AA;  22590 MW;  465BF0FC1B9C1523 CRC64;
     MSSGDEAVAA AAQRARVTAA RNIPVFGDLP LPADTANLRE GANLDDALLA LLPLVGVWRG
     EGEGRAAHGD YRFGQQIVVS HDGGDYLNWE ARSWHLDDDG EYARPGLRET GFWRFVSDPG
     DPEESQAIEL LLAHSAGYIE LFYGRPLNQS SWELVTDALA RSKSGMLVGG AKRLYGIIEG
     GDLAYVEERV DADGGLVPHL SARLTRFVG