ID   MMS5_MAGSA              Reviewed;          51 AA.
AC   Q2W8J4; Q83VL6;
DT   18-SEP-2019, integrated into UniProtKB/Swiss-Prot.
DT   18-SEP-2019, sequence version 2.
DT   25-MAY-2022, entry version 65.
DE   RecName: Full=Magnetosome protein Mms5 {ECO:0000303|PubMed:12496282};
GN   Name=mms5 {ECO:0000303|PubMed:12496282}; OrderedLocusNames=amb1027;
OS   Magnetospirillum magneticum (strain AMB-1 / ATCC 700264).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Magnetospirillum.
OX   NCBI_TaxID=342108;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], PROTEIN SEQUENCE OF 8-32, SUBCELLULAR
RP   LOCATION, AND POSSIBLE PROTEOLYSIS.
RC   STRAIN=AMB-1 / ATCC 700264;
RX   PubMed=12496282; DOI=10.1074/jbc.m211729200;
RA   Arakaki A., Webb J., Matsunaga T.;
RT   "A novel protein tightly bound to bacterial magnetic particles in
RT   Magnetospirillum magneticum strain AMB-1.";
RL   J. Biol. Chem. 278:8745-8750(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND SUBCELLULAR LOCATION.
RC   STRAIN=AMB-1 / ATCC 700264;
RX   PubMed=16303747; DOI=10.1093/dnares/dsi002;
RA   Matsunaga T., Okamura Y., Fukuda Y., Wahyudi A.T., Murase Y., Takeyama H.;
RT   "Complete genome sequence of the facultative anaerobic magnetotactic
RT   bacterium Magnetospirillum sp. strain AMB-1.";
RL   DNA Res. 12:157-166(2005).
RN   [3]
RP   FUNCTION, AND DISRUPTION PHENOTYPE.
RC   STRAIN=AMB-1 / ATCC 700264;
RX   PubMed=24961165; DOI=10.1111/mmi.12683;
RA   Arakaki A., Yamagishi A., Fukuyo A., Tanaka M., Matsunaga T.;
RT   "Co-ordinated functions of Mms proteins define the surface structure of
RT   cubo-octahedral magnetite crystals in magnetotactic bacteria.";
RL   Mol. Microbiol. 93:554-567(2014).
CC   -!- FUNCTION: Might be involved in magnetite crystal growth.
CC       {ECO:0000305|PubMed:24961165}.
CC   -!- SUBCELLULAR LOCATION: Magnetosome membrane
CC       {ECO:0000269|PubMed:12496282, ECO:0000269|PubMed:16303747}; Single-pass
CC       membrane protein {ECO:0000255}. Note=Tightly associated with magnetite
CC       crystals. {ECO:0000269|PubMed:12496282}.
CC   -!- PTM: Seen in gels as a band of about 5 kDa, with an N-terminus that
CC       corresponds to residue 8, suggesting it may undergo N-terminal
CC       cleavage. {ECO:0000305|PubMed:12496282}.
CC   -!- DISRUPTION PHENOTYPE: Still forms magnetite crystals, which are about
CC       half the size of wild-type but have a wild-type surface.
CC       {ECO:0000269|PubMed:24961165}.
CC   -!- MISCELLANEOUS: This bacteria makes up to 20 cubo-octahedral
CC       magnetosomes of about 45 nm in diameter which contain membrane-bound
CC       crystals of magnetite (Fe(3)O(4)). {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the magnetosome MamD/Mms5 family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=BAE49831.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; AB096082; BAC65163.1; -; Genomic_DNA.
DR   EMBL; AP007255; BAE49831.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; Q2W8J4; -.
DR   EnsemblBacteria; BAE49831; BAE49831; amb1027.
DR   KEGG; mag:amb1027; -.
DR   HOGENOM; CLU_1325061_0_0_5; -.
DR   Proteomes; UP000007058; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0110146; C:magnetosome membrane; IDA:UniProtKB.
PE   1: Evidence at protein level;
KW   Biomineralization; Direct protein sequencing; Magnetosome; Membrane;
KW   Reference proteome; Transmembrane; Transmembrane helix.
FT   CHAIN           1..51
FT                   /note="Magnetosome protein Mms5"
FT                   /id="PRO_0000447794"
FT   TOPO_DOM        1..12
FT                   /note="Lumenal"
FT                   /evidence="ECO:0000305"
FT   TRANSMEM        13..33
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TOPO_DOM        34..51
FT                   /note="Cytoplasmic"
FT                   /evidence="ECO:0000305"
FT   REGION          9..16
FT                   /note="LG region"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   51 AA;  4987 MW;  58184E75B87BEEBD CRC64;
     MLSAKGVSLG LGLGLGAWGP VLLGVVGVAG AIALYGYYKN RNAEPAAAEA V