RCEM_RUBGI
ID RCEM_RUBGI Reviewed; 325 AA.
AC P51761; I0HUL4;
DT 01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 2.
DT 03-AUG-2022, entry version 112.
DE RecName: Full=Reaction center protein M chain;
DE AltName: Full=Photosynthetic reaction center M subunit;
GN Name=pufM; OrderedLocusNames=RGE_33620;
OS Rubrivivax gelatinosus (strain NBRC 100245 / IL144).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales; Rubrivivax.
OX NCBI_TaxID=983917;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=NBRC 100245 / IL144;
RX PubMed=8300574; DOI=10.1016/s0021-9258(17)41970-3;
RA Nagashima K.V.P., Matsuura K., Ohyama S., Shimada K.;
RT "Primary structure and transcription of genes encoding B870 and
RT photosynthetic reaction center apoproteins from Rubrivivax gelatinosus.";
RL J. Biol. Chem. 269:2477-2484(1994).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NBRC 100245 / IL144;
RX PubMed=22689232; DOI=10.1128/jb.00511-12;
RA Nagashima S., Kamimura A., Shimizu T., Nakamura-Isaki S., Aono E.,
RA Sakamoto K., Ichikawa N., Nakazawa H., Sekine M., Yamazaki S., Fujita N.,
RA Shimada K., Hanada S., Nagashima K.V.;
RT "Complete genome sequence of phototrophic betaproteobacterium Rubrivivax
RT gelatinosus IL144.";
RL J. Bacteriol. 194:3541-3542(2012).
CC -!- FUNCTION: The reaction center is a membrane-bound complex that mediates
CC the initial photochemical event in the electron transfer process of
CC photosynthesis.
CC -!- SUBUNIT: Reaction center is composed of four bacteriochlorophylls, two
CC bacteriopheophytins, two ubiquinones, one iron, and three highly
CC hydrophobic polypeptide chains (designated L, M, and H).
CC -!- SUBCELLULAR LOCATION: Cell inner membrane {ECO:0000250}; Multi-pass
CC membrane protein {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the reaction center PufL/M/PsbA/D family.
CC {ECO:0000305}.
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DR EMBL; D16822; BAA04101.1; -; Genomic_DNA.
DR EMBL; AP012320; BAL96701.1; -; Genomic_DNA.
DR PIR; F49964; F49964.
DR PIR; T50890; T50890.
DR RefSeq; WP_014429562.1; NC_017075.1.
DR AlphaFoldDB; P51761; -.
DR SMR; P51761; -.
DR STRING; 983917.RGE_33620; -.
DR EnsemblBacteria; BAL96701; BAL96701; RGE_33620.
DR KEGG; rge:RGE_33620; -.
DR PATRIC; fig|983917.3.peg.3289; -.
DR eggNOG; ENOG502Z87P; Bacteria.
DR HOGENOM; CLU_078782_0_0_4; -.
DR OMA; IFPHLDW; -.
DR OrthoDB; 634532at2; -.
DR Proteomes; UP000007883; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0030077; C:plasma membrane light-harvesting complex; IEA:InterPro.
DR GO; GO:0042314; F:bacteriochlorophyll binding; IEA:UniProtKB-KW.
DR GO; GO:0045156; F:electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0009772; P:photosynthetic electron transport in photosystem II; IEA:InterPro.
DR CDD; cd09291; Photo-RC_M; 1.
DR Gene3D; 1.20.85.10; -; 2.
DR InterPro; IPR036854; Photo_II_D1/D2_sf.
DR InterPro; IPR000484; Photo_RC_L/M.
DR InterPro; IPR005781; Photo_RC_M.
DR Pfam; PF00124; Photo_RC; 1.
DR PRINTS; PR00256; REACTNCENTRE.
DR SUPFAM; SSF81483; SSF81483; 1.
DR TIGRFAMs; TIGR01115; pufM; 1.
DR PROSITE; PS00244; REACTION_CENTER; 1.
PE 3: Inferred from homology;
KW Bacteriochlorophyll; Cell inner membrane; Cell membrane; Chlorophyll;
KW Chromophore; Electron transport; Iron; Magnesium; Membrane; Metal-binding;
KW Photosynthesis; Reaction center; Reference proteome; Transmembrane;
KW Transmembrane helix; Transport.
FT INIT_MET 1
FT /note="Removed"
FT /evidence="ECO:0000250"
FT CHAIN 2..325
FT /note="Reaction center protein M chain"
FT /id="PRO_0000090415"
FT TRANSMEM 54..80
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 111..140
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 143..168
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 198..226
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 260..286
FT /note="Helical"
FT /evidence="ECO:0000255"
FT BINDING 183
FT /ligand="(7R,8Z)-bacteriochlorophyll b"
FT /ligand_id="ChEBI:CHEBI:30034"
FT /ligand_part="Mg"
FT /ligand_part_id="ChEBI:CHEBI:25107"
FT /note="axial binding residue"
FT /evidence="ECO:0000250"
FT BINDING 203
FT /ligand="(7R,8Z)-bacteriochlorophyll b"
FT /ligand_id="ChEBI:CHEBI:30034"
FT /ligand_part="Mg"
FT /ligand_part_id="ChEBI:CHEBI:25107"
FT /note="axial binding residue"
FT /evidence="ECO:0000250"
FT BINDING 220
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000250"
FT BINDING 235
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000250"
FT BINDING 253
FT /ligand="a ubiquinone"
FT /ligand_id="ChEBI:CHEBI:16389"
FT /evidence="ECO:0000250"
FT BINDING 267
FT /ligand="Fe cation"
FT /ligand_id="ChEBI:CHEBI:24875"
FT /evidence="ECO:0000250"
SQ SEQUENCE 325 AA; 36276 MW; D42B4C465AAEC352 CRC64;
MAEYQNIFTR VQVAGPAHMG VPLPEQDSPR TGKKPWQIHL LGRLGMAQIG PIYLGPLGIL
SIVFGSLAIM IIGFNMLASV GWNPIEFFRQ FFWLALEPPS PKYGLKLPPL NDGGWWLMAG
LFLTISILLW WVRMYTRARA LGMGTHVAWA FAAAIWLYLV LGFIRPVLMG SWSEAVPFGI
FPHLDWTAAF SLRYGNLFYN PFHALSIAFL YGATLLFAMH GATILAVSRF GGERELEQIA
DRGTASERAQ LFWRWTMGFN ATTESIHRWA WWFAVLCPLC GGIGILLSGT VVDNWYLWAV
KHGVAPSYPA VFAPTIDPAT LQGVK
