NB_CLAMS
ID NB_CLAMS Reviewed; 199 AA.
AC B0RAV9;
DT 16-DEC-2008, integrated into UniProtKB/Swiss-Prot.
DT 08-APR-2008, sequence version 1.
DT 03-AUG-2022, entry version 79.
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=CMS2734;
OS Clavibacter michiganensis subsp. sepedonicus (strain ATCC 33113 / DSM 20744
OS / JCM 9667 / LMG 2889 / C-1) (Corynebacterium sepedonicum).
OC Bacteria; Actinobacteria; Micrococcales; Microbacteriaceae; Clavibacter.
OX NCBI_TaxID=31964;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 33113 / DSM 20744 / JCM 9667 / LMG 2889 / C-1;
RX PubMed=18192393; DOI=10.1128/jb.01598-07;
RA Bentley S.D., Corton C., Brown S.E., Barron A., Clark L., Doggett J.,
RA Harris B., Ormond D., Quail M.A., May G., Francis D., Knudson D.,
RA Parkhill J., Ishimaru C.A.;
RT "Genome of the actinomycete plant pathogen Clavibacter michiganensis subsp.
RT sepedonicus suggests recent niche adaptation.";
RL J. Bacteriol. 190:2150-2160(2008).
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; AM849034; CAQ02806.1; -; Genomic_DNA.
DR RefSeq; WP_012299974.1; NZ_MZMN01000003.1.
DR AlphaFoldDB; B0RAV9; -.
DR SMR; B0RAV9; -.
DR STRING; 31964.CMS2734; -.
DR EnsemblBacteria; CAQ02806; CAQ02806; CMS2734.
DR KEGG; cms:CMS2734; -.
DR eggNOG; COG3485; Bacteria.
DR HOGENOM; CLU_085483_0_1_11; -.
DR OMA; EKCNFGQ; -.
DR Proteomes; UP000001318; 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..199
FT /note="Peroxynitrite isomerase"
FT /id="PRO_0000356898"
FT MOTIF 20..26
FT /note="GXWXGXG"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01297"
FT BINDING 158
FT /ligand="heme b"
FT /ligand_id="ChEBI:CHEBI:60344"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01297"
FT BINDING 190
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 199 AA; 21784 MW; 9AC23E5429CD48FC CRC64;
MIEIPTGLPA ELVPLSWLLG VWEGSGVVEY AVGDETVRRE FGQRISFSHD GLPHLNYSSY
AWIEGDDGPV PFVTETGYWR LRRRVTDGDP GPAMLPPTDE RPFTTAEEVE TLCNADGGFD
VEVALVHPGG VSELYVGQVK SARIDLATDA VLRTEGAKSY TGATRLYGFV ERDLLWAWDI
AALGQPLRTH ASGRVSHVD
