ID A0A2U8LLC7_PILAM Unreviewed; 58 AA. AC A0A2U8LLC7; DT 12-SEP-2018, integrated into UniProtKB/TrEMBL. DT 12-SEP-2018, sequence version 1. DT 05-DEC-2018, entry version 4. DE RecName: Full=Photosystem II reaction center protein K {ECO:0000256|HAMAP-Rule:MF_00441}; DE Short=PSII-K {ECO:0000256|HAMAP-Rule:MF_00441}; GN Name=psbK {ECO:0000256|HAMAP-Rule:MF_00441, GN ECO:0000313|EMBL:AWL21514.1}; OS Pilularia americana (American pillwort). OG Plastid; Chloroplast {ECO:0000313|EMBL:AWL21514.1}. OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; OC Polypodiopsida; Polypodiidae; Salviniales; Marsileaceae; Pilularia. OX NCBI_TaxID=39634 {ECO:0000313|EMBL:AWL21514.1}; RN [1] {ECO:0000313|EMBL:AWL21514.1} RP NUCLEOTIDE SEQUENCE. RA Afonso C.L., Miller P.J., Scott M.A., Spackman E., Goraichik I., RA Dimitrov K.M., Suarez D.L., Swayne D.E.; RL Submitted (MAR-2017) to the EMBL/GenBank/DDBJ databases. CC -!- FUNCTION: One of the components of the core complex of photosystem CC II (PSII). PSII is a light-driven water:plastoquinone CC oxidoreductase that uses light energy to abstract electrons from CC H(2)O, generating O(2) and a proton gradient subsequently used for CC ATP formation. It consists of a core antenna complex that captures CC photons, and an electron transfer chain that converts photonic CC excitation into a charge separation. {ECO:0000256|HAMAP- CC Rule:MF_00441}. CC -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins CC PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, CC PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral CC proteins of the oxygen-evolving complex and a large number of CC cofactors. It forms dimeric complexes. {ECO:0000256|HAMAP- CC Rule:MF_00441, ECO:0000256|SAAS:SAAS00943458}. CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane CC {ECO:0000256|HAMAP-Rule:MF_00441, ECO:0000256|SAAS:SAAS00943453}; CC Single-pass membrane protein {ECO:0000256|HAMAP-Rule:MF_00441, CC ECO:0000256|SAAS:SAAS00943453}. CC -!- SIMILARITY: Belongs to the PsbK family. {ECO:0000256|HAMAP- CC Rule:MF_00441}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; KY863504; AWL21514.1; -; Genomic_DNA. 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:0009539; C:photosystem II reaction center; IEA:InterPro. DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule. DR HAMAP; MF_00441; PSII_PsbK; 1. DR InterPro; IPR003687; PSII_PsbK. DR InterPro; IPR037270; PSII_PsbK_sf. DR PANTHER; PTHR35325; PTHR35325; 1. DR Pfam; PF02533; PsbK; 1. DR ProDom; PD004458; PSII_PsbK; 1. DR SUPFAM; SSF161037; SSF161037; 1. PE 3: Inferred from homology; KW Chloroplast {ECO:0000256|SAAS:SAAS00943457, KW ECO:0000313|EMBL:AWL21514.1}; KW Membrane {ECO:0000256|HAMAP-Rule:MF_00441, ECO:0000256|SAM:Phobius}; KW Photosynthesis {ECO:0000256|HAMAP-Rule:MF_00441}; KW Photosystem II {ECO:0000256|HAMAP-Rule:MF_00441}; KW Plastid {ECO:0000313|EMBL:AWL21514.1}; KW Reaction center {ECO:0000256|HAMAP-Rule:MF_00441}; KW Thylakoid {ECO:0000256|HAMAP-Rule:MF_00441}; KW Transmembrane {ECO:0000256|HAMAP-Rule:MF_00441, KW ECO:0000256|SAM:Phobius}; KW Transmembrane helix {ECO:0000256|HAMAP-Rule:MF_00441, KW ECO:0000256|SAM:Phobius}. FT PROPEP 1 21 {ECO:0000256|HAMAP-Rule:MF_00441}. FT /FTId=PRO_5016184124. FT TRANSMEM 39 57 Helical. {ECO:0000256|SAM:Phobius}. SQ SEQUENCE 58 AA; 6697 MW; 983D3BD3673EDFA9 CRC64; MVVLYNTYLE NFLHLNAAFF AKLPEAYAIF DPIVDVMPVI PVFFLLLAFV WQAAVSFR //