RCEH_RHOCA
ID RCEH_RHOCA Reviewed; 254 AA.
AC P19056;
DT 01-NOV-1990, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1990, sequence version 1.
DT 03-AUG-2022, entry version 99.
DE RecName: Full=Reaction center protein H chain;
DE AltName: Full=Photosynthetic reaction center H subunit;
GN Name=puhA;
OS Rhodobacter capsulatus (Rhodopseudomonas capsulata).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC Rhodobacteraceae; Rhodobacter.
OX NCBI_TaxID=1061;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=6744416; DOI=10.1016/0092-8674(84)90429-x;
RA Youvan D.C., Bylina E.J., Alberti M., Begusch H., Hearst J.E.;
RT "Nucleotide and deduced polypeptide sequences of the photosynthetic
RT reaction-center, B870 antenna, and flanking polypeptides from R.
RT capsulata.";
RL Cell 37:949-957(1984).
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 -!- COFACTOR:
CC Name=a bacteriochlorophyll; Xref=ChEBI:CHEBI:38201;
CC Note=Binds 4 bacteriochlorophylls per trimer.;
CC -!- COFACTOR:
CC Name=a bacteriopheophytin; Xref=ChEBI:CHEBI:60411;
CC Note=Binds 2 bacteriopheophytins per trimer.;
CC -!- COFACTOR:
CC Name=Fe cation; Xref=ChEBI:CHEBI:24875;
CC Note=Binds 1 Fe cation per trimer.;
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Note=Binds 4 Mg(2+) ions per trimer.;
CC -!- COFACTOR:
CC Name=a ubiquinone; Xref=ChEBI:CHEBI:16389;
CC Note=Binds 2 ubiquinone per trimer.;
CC -!- SUBUNIT: Heterotrimer composed of subunits L, M, and H.
CC -!- SUBCELLULAR LOCATION: Cellular chromatophore membrane; Single-pass
CC membrane protein.
CC -!- SIMILARITY: Belongs to the reaction center PuhA family. {ECO:0000305}.
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DR EMBL; K01183; AAA26171.1; -; Genomic_DNA.
DR EMBL; Z11165; CAA77520.1; -; Genomic_DNA.
DR PIR; C28771; C28771.
DR RefSeq; WP_013066403.1; NZ_VIBE01000010.1.
DR AlphaFoldDB; P19056; -.
DR SMR; P19056; -.
DR GeneID; 31489605; -.
DR OMA; YAFWIFF; -.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0030077; C:plasma membrane light-harvesting complex; IEA:InterPro.
DR GO; GO:0042717; C:plasma membrane-derived chromatophore membrane; IEA:UniProtKB-SubCell.
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:0019684; P:photosynthesis, light reaction; IEA:InterPro.
DR CDD; cd00226; PRCH; 1.
DR Gene3D; 3.90.50.10; -; 1.
DR Gene3D; 4.10.540.10; -; 1.
DR InterPro; IPR014747; Bac_photo_RC_H_C.
DR InterPro; IPR005652; Photo_RC_H.
DR InterPro; IPR015810; Photo_RC_H_N.
DR InterPro; IPR037097; Photo_RC_H_N_sf.
DR InterPro; IPR027275; PRC-brl_dom.
DR InterPro; IPR011033; PRC_barrel-like_sf.
DR Pfam; PF05239; PRC; 1.
DR Pfam; PF03967; PRCH; 1.
DR SUPFAM; SSF50346; SSF50346; 1.
DR TIGRFAMs; TIGR01150; puhA; 1.
PE 3: Inferred from homology;
KW Bacteriochlorophyll; Chlorophyll; Chromophore; Electron transport;
KW Membrane; Photosynthesis; Reaction center; Transmembrane;
KW Transmembrane helix; Transport.
FT CHAIN 1..254
FT /note="Reaction center protein H chain"
FT /id="PRO_0000090393"
FT TRANSMEM 12..31
FT /note="Helical"
SQ SEQUENCE 254 AA; 28537 MW; D69541F237A19039 CRC64;
MVGVNFFGDF DLASLAIWSF WAFLAYLIYY LQTENMREGY PLENDDGKLS PNQGPFPVPS
PKTFDLADGR KIVVPSVENE EAHRRTDLAL ERTSVNEGYP FRPTGNPMLD GVGPASWVPR
RDEPEVDAHG HNKIQPMRKT EMKVSAGRDP RGMPVQAGDT EVVGKIVDMW VDIPEQLVRY
LEVELNSGKK KLLPMTMLKI WSDRVRVNAI TSDLFDTIPD IKSPDVVTKL EEDKISAYVA
GGYMYAKGVK PYAL
