ID Q1QP72_NITHX Unreviewed; 137 AA.
AC Q1QP72;
DT 16-MAY-2006, integrated into UniProtKB/TrEMBL.
DT 16-MAY-2006, sequence version 1.
DT 27-MAR-2024, entry version 109.
DE RecName: Full=Peptide methionine sulfoxide reductase MsrB {ECO:0000256|HAMAP-Rule:MF_01400};
DE EC=1.8.4.12 {ECO:0000256|HAMAP-Rule:MF_01400};
DE AltName: Full=Peptide-methionine (R)-S-oxide reductase {ECO:0000256|HAMAP-Rule:MF_01400};
GN Name=msrB {ECO:0000256|HAMAP-Rule:MF_01400};
GN OrderedLocusNames=Nham_1128 {ECO:0000313|EMBL:ABE61975.1};
OS Nitrobacter hamburgensis (strain DSM 10229 / NCIMB 13809 / X14).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Nitrobacteraceae; Nitrobacter.
OX NCBI_TaxID=323097 {ECO:0000313|EMBL:ABE61975.1, ECO:0000313|Proteomes:UP000001953};
RN [1] {ECO:0000313|EMBL:ABE61975.1, ECO:0000313|Proteomes:UP000001953}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 10229 / NCIMB 13809 / X14
RC {ECO:0000313|Proteomes:UP000001953};
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 Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA Hauser L., Kyrpides N., Ivanova N., Ward B., Arp D., Klotz M., Stein L.,
RA O'Mullan G., Starkenburg S., Sayavedra L., Poret-Peterson A.T.,
RA Gentry M.E., Bruce D., Richardson P.;
RT "Complete sequence of chromosome of Nitrobacter hamburgensis X14.";
RL Submitted (MAR-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[thioredoxin]-disulfide + H2O + L-methionyl-[protein] =
CC [thioredoxin]-dithiol + L-methionyl-(R)-S-oxide-[protein];
CC Xref=Rhea:RHEA:24164, Rhea:RHEA-COMP:10698, Rhea:RHEA-COMP:10700,
CC Rhea:RHEA-COMP:12313, Rhea:RHEA-COMP:12314, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:16044, ChEBI:CHEBI:29950, ChEBI:CHEBI:45764,
CC ChEBI:CHEBI:50058; EC=1.8.4.12;
CC Evidence={ECO:0000256|ARBA:ARBA00001795, ECO:0000256|HAMAP-
CC Rule:MF_01400};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01400};
CC Note=Binds 1 zinc ion per subunit. The zinc ion is important for the
CC structural integrity of the protein. {ECO:0000256|HAMAP-Rule:MF_01400};
CC -!- SIMILARITY: Belongs to the MsrB Met sulfoxide reductase family.
CC {ECO:0000256|HAMAP-Rule:MF_01400}.
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DR EMBL; CP000319; ABE61975.1; -; Genomic_DNA.
DR RefSeq; WP_011509670.1; NC_007964.1.
DR AlphaFoldDB; Q1QP72; -.
DR STRING; 323097.Nham_1128; -.
DR KEGG; nha:Nham_1128; -.
DR eggNOG; COG0229; Bacteria.
DR HOGENOM; CLU_031040_8_5_5; -.
DR OrthoDB; 9785497at2; -.
DR Proteomes; UP000001953; Chromosome.
DR GO; GO:0033743; F:peptide-methionine (R)-S-oxide reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0030091; P:protein repair; IEA:InterPro.
DR GO; GO:0006979; P:response to oxidative stress; IEA:InterPro.
DR Gene3D; 2.170.150.20; Peptide methionine sulfoxide reductase; 1.
DR HAMAP; MF_01400; MsrB; 1.
DR InterPro; IPR028427; Met_Sox_Rdtase_MsrB.
DR InterPro; IPR002579; Met_Sox_Rdtase_MsrB_dom.
DR InterPro; IPR011057; Mss4-like_sf.
DR NCBIfam; TIGR00357; peptide-methionine (R)-S-oxide reductase MsrB; 1.
DR PANTHER; PTHR10173; METHIONINE SULFOXIDE REDUCTASE; 1.
DR PANTHER; PTHR10173:SF52; METHIONINE-R-SULFOXIDE REDUCTASE B3; 1.
DR Pfam; PF01641; SelR; 1.
DR SUPFAM; SSF51316; Mss4-like; 1.
DR PROSITE; PS51790; MSRB; 1.
PE 3: Inferred from homology;
KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_01400};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_01400}; Reference proteome {ECO:0000313|Proteomes:UP000001953};
KW Zinc {ECO:0000256|HAMAP-Rule:MF_01400}.
FT DOMAIN 15..137
FT /note="MsrB"
FT /evidence="ECO:0000259|PROSITE:PS51790"
FT ACT_SITE 126
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01400"
FT BINDING 54
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01400"
FT BINDING 57
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01400"
FT BINDING 103
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01400"
FT BINDING 106
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01400"
SQ SEQUENCE 137 AA; 15180 MW; 468E9B84652C87F1 CRC64;
MPDSKTMPPK ITKSDSEWRK ELTPMQYAVL REKATERPFS GEYEHERRKG TYVCAGCGQT
LFESDAKFDS GCGWPSFTAP AADSQVDEER DVSLGMIRTE VLCSKCDGHL GHVFDDGPGP
TGLRYCINSA ALKLEPK
//
