ID PSB2_SYNY3 STANDARD; PRT; 360 AA. AC P16033; DT 01-APR-1990 (REL. 14, CREATED) DT 01-APR-1990 (REL. 14, LAST SEQUENCE UPDATE) DT 01-JUN-1994 (REL. 29, LAST ANNOTATION UPDATE) DE PHOTOSYSTEM Q(B) PROTEIN (32 KD THYLAKOID MEMBRANE PROTEIN) DE (PHOTOSYSTEM II PROTEIN D1). GN PSBA-2 OR PSBA3. OS SYNECHOCYSTIS SP. (STRAIN PCC 6803). OC PROKARYOTA; GRACILICUTES; OXYPHOTOBACTERIA; OC CYANOBACTERIA (BLUE-GREEN ALGAE); CHROOCOCCALES. RN [1] RP SEQUENCE FROM N.A. RM 91067488 RA METZ J., NIXON P., DINER B.; RL NUCLEIC ACIDS RES. 18:6715-6715(1990). RN [2] RP SEQUENCE FROM N.A. RM 89282415 RA RAVNIKAR P.D., DEBUS R., SEVRINCK J., SAETAERT P., MCINTOSH L.; RL NUCLEIC ACIDS RES. 17:3991-3991(1989). RN [3] RP MUTAGENESIS FOR HERBICIDE RESISTANCE. RM 92361253 RA OHAD N., HIRSCHBERG J.; RL PLANT CELL 4:273-282(1992). RN [4] RP MUTAGENESIS FOR HERBICIDE RESISTANCE. RA KLESS H., OREN-SHAMIR M., MALKIN S., MCINTOSH L., EDELMAN M.; RL BIOCHEMISTRY 33:0-0(1994). CC -!- FUNCTION: THIS IS ONE OF THE TWO REACTION CENTRE PROTEINS OF THE CC PHOTOSYSTEM II. CC -!- SUBCELLULAR LOCATION: INTEGRAL MEMBRANE PROTEIN. THYLAKOID CC MEMBRANE. CC -!- HERBICIDES SUCH AS ATRAZINE, BNT, DIURON OR IOXYNIL BIND TO CC Q(B) AND BLOCKS THE ELECTRON TRANSPORT. CC -!- CYANOBACTERIA ARE GENERALLY KNOWN TO CONTAIN 2 TO 3 COPIES OF THE CC PSBA GENE. CC -!- SIMILARITY: BACTERIAL REACTION CENTER L AND M CHAINS, AND PLANTS CC PHOTOSYSTEM II D1 AND D2 PROTEINS ARE RELATED. 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; X56000; SYPSBA3. DR EMBL; X13547; SYNPSBA2. DR PIR; S13112; F2YB16. DR PROSITE; PS00244; REACTION_CENTER. KW TRANSMEMBRANE; ELECTRON TRANSPORT; THYLAKOID MEMBRANE; PHOTOSYSTEM II; KW IRON; HERBICIDE RESISTANCE; MULTIGENE FAMILY. FT TRANSMEM 36 56 POTENTIAL. FT TRANSMEM 109 129 POTENTIAL. FT TRANSMEM 141 164 POTENTIAL. FT TRANSMEM 192 218 POTENTIAL. FT TRANSMEM 269 289 POTENTIAL. FT METAL 215 215 IRON (NON HAEM). FT METAL 272 272 IRON (NON HAEM). FT MUTAGEN 221 222 SS->LA: STRONG HERBICIDE RESISTANCE. FT MUTAGEN 227 228 TT->AA: HERBICIDE RESISTANCE. FT MUTAGEN 237 237 Y->F: WEAK HERBICIDE RESISTANCE. FT MUTAGEN 238 238 K->V: WEAK HERBICIDE RESISTANCE. FT MUTAGEN 255 255 F->W: HERBICIDE RESISTANCE. FT MUTAGEN 257 257 R->V: HERBICIDE RESISTANCE. FT MUTAGEN 264 264 S->A: STRONG HERBICIDE RESISTANCE. FT MUTAGEN 271 271 L->V,M,A,S: HERBICIDE RESISTANCE. SQ SEQUENCE 360 AA; 39721 MW; 672790 CN; MTTTLQQRES ASLWEQFCQW VTSTNNRIYV GWFGTLMIPT LLTATTCFII AFIAAPPVDI DGIREPVAGS LLYGNNIISG AVVPSSNAIG LHFYPIWEAA SLDEWLYNGG PYQLVVFHFL IGIFCYMGRQ WELSYRLGMR PWICVAYSAP VSAATAVFLI YPIGQGSFSD GMPLGISGTF NFMIVFQAEH NILMHPFHML GVAGVFGGSL FSAMHGSLVT SSLVRETTEV ESQNYGYKFG QEEETYNIVA AHGYFGRLIF QYASFNNSRS LHFFLGAWPV IGIWFTAMGV STMAFNLNGF NFNQSILDSQ GRVIGTWADV LNRANIGFEV MHERNAHNFP LDLASGEQAP VALTAPAVNG //