ID   NB_MYCA9                Reviewed;         205 AA.
AC   B1MI06;
DT   16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT   29-APR-2008, sequence version 1.
DT   03-AUG-2022, entry version 77.
DE   RecName: Full=Peroxynitrite isomerase;
DE            EC=5.99.-.- {ECO:0000255|HAMAP-Rule:MF_01297};
DE   AltName: Full=Ferric nitrobindin;
DE            Short=Nb(III);
GN   OrderedLocusNames=MAB_0732c;
OS   Mycobacteroides abscessus (strain ATCC 19977 / DSM 44196 / CIP 104536 / JCM
OS   13569 / NCTC 13031 / TMC 1543) (Mycobacterium abscessus).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacteroides; Mycobacteroides abscessus.
OX   NCBI_TaxID=561007;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 19977 / DSM 44196 / CIP 104536 / JCM 13569 / NCTC 13031 / TMC
RC   1543;
RX   PubMed=19543527; DOI=10.1371/journal.pone.0005660;
RA   Ripoll F., Pasek S., Schenowitz C., Dossat C., Barbe V., Rottman M.,
RA   Macheras E., Heym B., Herrmann J.L., Daffe M., Brosch R., Risler J.L.,
RA   Gaillard J.L.;
RT   "Non mycobacterial virulence genes in the genome of the emerging pathogen
RT   Mycobacterium abscessus.";
RL   PLoS ONE 4:E5660-E5660(2009).
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}.
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DR   EMBL; CU458896; CAM60828.1; -; Genomic_DNA.
DR   RefSeq; WP_005064231.1; NZ_MLCG01000008.1.
DR   AlphaFoldDB; B1MI06; -.
DR   SMR; B1MI06; -.
DR   EnsemblBacteria; CAM60828; CAM60828; MAB_0732c.
DR   GeneID; 66971117; -.
DR   KEGG; mab:MAB_0732c; -.
DR   OMA; EKCNFGQ; -.
DR   Proteomes; UP000007137; 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.
FT   CHAIN           1..205
FT                   /note="Peroxynitrite isomerase"
FT                   /id="PRO_0000356913"
FT   REGION          1..23
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   MOTIF           52..58
FT                   /note="GXWXGXG"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01297"
FT   BINDING         63
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01297"
FT   BINDING         168
FT                   /ligand="heme b"
FT                   /ligand_id="ChEBI:CHEBI:60344"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01297"
FT   BINDING         195
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   205 AA;  22236 MW;  F8740B4DD3073989 CRC64;
     MTEPDPAAAE QRPSVGRNLP TFQDLPIPAD TANLREGPDL NAAMLALLPL VGVWRGEGEG
     RDTDGDYRFG QQIVVAHDGS DYLTWDARSW RLDADGQFEQ LTLRETGFWR FAPDPNDPDE
     NQAIELVLAH AAGFVELFYG QPLNASSWEL VTDALARSKS GALIGGAKRL YGIVDGGDLA
     YVEERVGADG GLEPHLSARL SRFAG