ID   PSBM_PEA                Reviewed;          34 AA.
AC   P69529; P34833;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   15-MAR-2005, sequence version 1.
DT   25-MAY-2022, entry version 57.
DE   RecName: Full=Photosystem II reaction center protein M {ECO:0000255|HAMAP-Rule:MF_00438};
DE            Short=PSII-M {ECO:0000255|HAMAP-Rule:MF_00438};
GN   Name=psbM {ECO:0000255|HAMAP-Rule:MF_00438};
OS   Pisum sativum (Garden pea).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Fabales; Fabaceae; Papilionoideae; 50 kb inversion clade;
OC   NPAAA clade; Hologalegina; IRL clade; Fabeae; Pisum.
OX   NCBI_TaxID=3888;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   AGRICOLA=IND87003969; DOI=10.1007/BF00020126;
RA   Lehmbeck J., Rasmussen O.F., Bookjans G.B., Jepsen B.R., Stummann B.M.,
RA   Henningsen K.W.;
RT   "Sequence of two genes in pea chloroplast DNA coding for 84 and 82 kD
RT   polypeptides of the photosystem I complex.";
RL   Plant Mol. Biol. 7:3-10(1986).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8440245; DOI=10.1002/j.1460-2075.1993.tb05687.x;
RA   Sato N., Albrieux C., Joyard J., Douce R., Kuroiwa T.;
RT   "Detection and characterization of a plastid envelope DNA-binding protein
RT   which may anchor plastid nucleoids.";
RL   EMBO J. 12:555-561(1993).
CC   -!- FUNCTION: One of the components of the core complex of photosystem II
CC       (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that
CC       uses light energy to abstract electrons from H(2)O, generating O(2) and
CC       a proton gradient subsequently used for ATP formation. It consists of a
CC       core antenna complex that captures photons, and an electron transfer
CC       chain that converts photonic excitation into a charge separation. This
CC       subunit is found at the monomer-monomer interface. {ECO:0000255|HAMAP-
CC       Rule:MF_00438}.
CC   -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins PsbA,
CC       PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT,
CC       PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen-
CC       evolving complex and a large number of cofactors. It forms dimeric
CC       complexes. {ECO:0000255|HAMAP-Rule:MF_00438}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00438}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00438}.
CC   -!- SIMILARITY: Belongs to the PsbM family. {ECO:0000255|HAMAP-
CC       Rule:MF_00438}.
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DR   EMBL; D12535; BAA02098.1; -; Genomic_DNA.
DR   RefSeq; YP_003587539.1; NC_014057.1.
DR   PDB; 5XNL; EM; 2.70 A; M/m=1-34.
DR   PDB; 5XNM; EM; 3.20 A; M/m=1-34.
DR   PDB; 6YP7; EM; 3.80 A; M/m=1-33.
DR   PDBsum; 5XNL; -.
DR   PDBsum; 5XNM; -.
DR   PDBsum; 6YP7; -.
DR   AlphaFoldDB; P69529; -.
DR   SMR; P69529; -.
DR   GeneID; 9073072; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0009523; C:photosystem II; IEA:UniProtKB-KW.
DR   GO; GO:0019684; P:photosynthesis, light reaction; IEA:InterPro.
DR   HAMAP; MF_00438; PSII_PsbM; 1.
DR   InterPro; IPR007826; PSII_PsbM.
DR   InterPro; IPR037269; PSII_PsbM_sf.
DR   PANTHER; PTHR35774; PTHR35774; 1.
DR   Pfam; PF05151; PsbM; 1.
DR   SUPFAM; SSF161033; SSF161033; 1.
DR   TIGRFAMs; TIGR03038; PS_II_psbM; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Chloroplast; Membrane; Photosynthesis; Photosystem II;
KW   Plastid; Reaction center; Thylakoid; Transmembrane; Transmembrane helix.
FT   CHAIN           1..34
FT                   /note="Photosystem II reaction center protein M"
FT                   /id="PRO_0000217569"
FT   TRANSMEM        5..25
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00438"
FT   HELIX           6..32
FT                   /evidence="ECO:0007829|PDB:5XNL"
SQ   SEQUENCE   34 AA;  3756 MW;  70C27C04E4AB4222 CRC64;
     MEVNILAFIA TALFILVPTA FLLIIYVKTV SQSD