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Protein

Photosystem II CP47 reaction center protein

Gene

psbB

Organism
Thermosynechococcus elongatus (strain BP-1)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

One of the components of the core complex of photosystem II (PSII). It binds chlorophyll and helps catalyze the primary light-induced photochemical processes of PSII. PSII is a light-driven water:plastoquinone oxidoreductase, using light energy to abstract electrons from H2O, generating O2 and a proton gradient subsequently used for ATP formation.UniRule annotation3 Publications

Cofactori

Note: Binds multiple chlorophylls. PSII binds additional chlorophylls, carotenoids and specific lipids.UniRule annotation10 Publications

GO - Molecular functioni

GO - Biological processi

Keywordsi

Biological processPhotosynthesis
LigandChlorophyll, Chromophore

Enzyme and pathway databases

BioCyciTELO197221:G1G3I-1556-MONOMER

Names & Taxonomyi

Protein namesi
Recommended name:
Photosystem II CP47 reaction center proteinUniRule annotation
Alternative name(s):
PSII 47 kDa proteinUniRule annotation
Protein CP-47UniRule annotation
Gene namesi
Name:psbBUniRule annotation
Ordered Locus Names:tlr1530
OrganismiThermosynechococcus elongatus (strain BP-1)Imported
Taxonomic identifieri197221 [NCBI]
Taxonomic lineageiBacteriaCyanobacteriaSynechococcalesSynechococcaceaeThermosynechococcus
Proteomesi
  • UP000000440 Componenti: Chromosome

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini2 – 22Cytoplasmic1 PublicationAdd BLAST21
Transmembranei23 – 37Helical1 PublicationAdd BLAST15
Topological domaini38 – 95Lumenal1 PublicationAdd BLAST58
Transmembranei96 – 109Helical1 PublicationAdd BLAST14
Topological domaini110 – 141Cytoplasmic1 PublicationAdd BLAST32
Transmembranei142 – 156Helical1 PublicationAdd BLAST15
Topological domaini157 – 200Lumenal1 PublicationAdd BLAST44
Transmembranei201 – 213Helical1 PublicationAdd BLAST13
Topological domaini214 – 238Cytoplasmic1 PublicationAdd BLAST25
Transmembranei239 – 252Helical1 PublicationAdd BLAST14
Topological domaini253 – 453Lumenal1 PublicationAdd BLAST201
Transmembranei454 – 468Helical1 PublicationAdd BLAST15
Topological domaini469 – 510Cytoplasmic1 PublicationAdd BLAST42

GO - Cellular componenti

Keywords - Cellular componenti

Membrane, Photosystem II, Thylakoid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved1 Publication
ChainiPRO_00004308062 – 510Photosystem II CP47 reaction center proteinAdd BLAST509

Interactioni

Subunit structurei

Cyanobacterial PSII is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms dimeric complexes.UniRule annotation10 Publications

Protein-protein interaction databases

DIPiDIP-48488N
IntActiQ8DIQ1, 1 interactor
STRINGi197221.tlr1530

Structurei

Secondary structure

1510
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Helixi5 – 12Combined sources8
Helixi16 – 44Combined sources29
Turni50 – 52Combined sources3
Helixi55 – 57Combined sources3
Helixi63 – 68Combined sources6
Beta strandi77 – 79Combined sources3
Beta strandi90 – 92Combined sources3
Helixi93 – 116Combined sources24
Helixi121 – 123Combined sources3
Turni126 – 128Combined sources3
Beta strandi129 – 131Combined sources3
Helixi135 – 155Combined sources21
Turni156 – 159Combined sources4
Beta strandi160 – 163Combined sources4
Beta strandi166 – 168Combined sources3
Beta strandi173 – 175Combined sources3
Beta strandi177 – 179Combined sources3
Helixi187 – 189Combined sources3
Beta strandi192 – 194Combined sources3
Helixi195 – 218Combined sources24
Helixi223 – 228Combined sources6
Turni229 – 232Combined sources4
Helixi234 – 258Combined sources25
Beta strandi261 – 263Combined sources3
Helixi265 – 268Combined sources4
Helixi272 – 276Combined sources5
Helixi279 – 293Combined sources15
Helixi298 – 303Combined sources6
Helixi307 – 312Combined sources6
Helixi315 – 317Combined sources3
Beta strandi319 – 321Combined sources3
Helixi330 – 332Combined sources3
Beta strandi336 – 347Combined sources12
Beta strandi353 – 356Combined sources4
Beta strandi369 – 371Combined sources3
Beta strandi377 – 380Combined sources4
Helixi385 – 387Combined sources3
Beta strandi389 – 391Combined sources3
Helixi392 – 395Combined sources4
Beta strandi398 – 403Combined sources6
Helixi404 – 406Combined sources3
Beta strandi409 – 411Combined sources3
Helixi414 – 424Combined sources11
Beta strandi427 – 433Combined sources7
Turni435 – 438Combined sources4
Helixi447 – 474Combined sources28
Helixi476 – 478Combined sources3
Helixi488 – 490Combined sources3
Beta strandi495 – 498Combined sources4
Helixi502 – 504Combined sources3

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1S5LX-ray3.50B/b1-510[»]
1W5CX-ray3.20B/H1-510[»]
2AXTX-ray3.00B/b1-510[»]
3KZIX-ray3.60B1-510[»]
4FBYX-ray6.56B/N1-510[»]
4IXQX-ray5.70B/b1-510[»]
4IXRX-ray5.90B/b1-510[»]
4PBUX-ray5.00B/b2-505[»]
4PJ0X-ray2.44B/b1-510[»]
4RVYX-ray5.50B/b2-505[»]
4TNHX-ray4.90B/b1-510[»]
4TNIX-ray4.60B/b1-510[»]
4TNJX-ray4.50B/b1-510[»]
4TNKX-ray5.20B/b1-510[»]
4V62X-ray2.90AB/BB1-510[»]
4V82X-ray3.20AB/BB1-510[»]
5E79X-ray3.50B/b2-505[»]
5E7CX-ray4.50B/b2-505[»]
5H2FX-ray2.20B/b2-506[»]
5KAFX-ray3.00B/b1-510[»]
5KAIX-ray2.80B/b1-510[»]
5MX2X-ray2.20B/b1-510[»]
5TISX-ray2.25B/b1-510[»]
ProteinModelPortaliQ8DIQ1
SMRiQ8DIQ1
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiQ8DIQ1

Family & Domainsi

Sequence similaritiesi

Belongs to the PsbB/PsbC family. PsbB subfamily.UniRule annotationCurated

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiENOG4105YVZ Bacteria
ENOG410XQ0W LUCA
HOGENOMiHOG000111313
KOiK02704
OMAiIWHWTYW
OrthoDBiPOG091H13Y3

Family and domain databases

HAMAPiMF_01495 PSII_PsbB_CP47, 1 hit
InterProiView protein in InterPro
IPR000932 PS_antenna-like
IPR036001 PS_II_antenna-like_sf
IPR017486 PSII_PsbB
PANTHERiPTHR33180 PTHR33180, 1 hit
PfamiView protein in Pfam
PF00421 PSII, 1 hit
SUPFAMiSSF161077 SSF161077, 1 hit
TIGRFAMsiTIGR03039 PS_II_CP47, 1 hit

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q8DIQ1-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MGLPWYRVHT VLINDPGRLI AAHLMHTALV AGWAGSMALY ELATFDPSDP
60 70 80 90 100
VLNPMWRQGM FVLPFMARLG VTGSWSGWSI TGETGIDPGF WSFEGVALAH
110 120 130 140 150
IVLSGLLFLA ACWHWVYWDL ELFRDPRTGE PALDLPKMFG IHLFLAGLLC
160 170 180 190 200
FGFGAFHLTG LFGPGMWVSD PYGLTGSVQP VAPEWGPDGF NPYNPGGVVA
210 220 230 240 250
HHIAAGIVGI IAGLFHILVR PPQRLYKALR MGNIETVLSS SIAAVFFAAF
260 270 280 290 300
VVAGTMWYGS ATTPIELFGP TRYQWDSSYF QQEINRRVQA SLASGATLEE
310 320 330 340 350
AWSAIPEKLA FYDYIGNNPA KGGLFRTGPM NKGDGIAQAW KGHAVFRNKE
360 370 380 390 400
GEELFVRRMP AFFESFPVIL TDKNGVVKAD IPFRRAESKY SFEQQGVTVS
410 420 430 440 450
FYGGELNGQT FTDPPTVKSY ARKAIFGEIF EFDTETLNSD GIFRTSPRGW
460 470 480 490 500
FTFAHAVFAL LFFFGHIWHG ARTLFRDVFS GIDPELSPEQ VEWGFYQKVG
510
DVTTRRKEAV
Length:510
Mass (Da):56,604
Last modified:March 1, 2003 - v1
Checksum:i0AEEE3DB7124FB81
GO

Mass spectrometryi

Molecular mass is 56485±108 Da from positions 2 - 510. Determined by MALDI. 1 Publication

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AB052566 Genomic DNA Translation: BAB19261.1
BA000039 Genomic DNA Translation: BAC09082.1
RefSeqiNP_682320.1, NC_004113.1
WP_011057370.1, NC_004113.1

Genome annotation databases

EnsemblBacteriaiBAC09082; BAC09082; BAC09082
GeneIDi1011081
KEGGitel:tlr1530
PATRICifig|197221.4.peg.1607

Similar proteinsi

Entry informationi

Entry nameiPSBB_THEEB
AccessioniPrimary (citable) accession number: Q8DIQ1
Secondary accession number(s): Q9F1M3
Entry historyiIntegrated into UniProtKB/Swiss-Prot: October 29, 2014
Last sequence update: March 1, 2003
Last modified: April 25, 2018
This is version 105 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families

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