HMM Summary Page: TIGR03069

Functionphotosystem II S4 domain protein
Trusted Cutoff201.55
Domain Trusted Cutoff201.55
Noise Cutoff201.35
Domain Noise Cutoff201.35
Isology Typeequivalog
HMM Length257
Mainrole CategoryEnergy metabolism
Subrole CategoryPhotosynthesis
Gene Ontology TermGO:0003674: molecular_function molecular_function
GO:0015979: photosynthesis biological_process
GO:0030095: chloroplast photosystem II cellular_component
GO:0030096: plasma membrane-derived thylakoid photosystem II cellular_component
AuthorHaft DH
Entry DateSep 11 2006 9:20AM
Last ModifiedFeb 14 2011 3:27PM
CommentMembers of this protein family are about 265 residues long and each contains an S4 RNA-binding domain of about 48 residues. The member from the Cyanobacterium, Synechocystis sp. PCC 6803, was detected as a novel polypeptide in a highly purified preparation of active photosystem II (Kashino, et al., 2002). The phylogenetic distribution, including Cyanobacteria and Arabidopsis, supports a role in photosystem II, although the high bit score cutoffs for this model reflect similar sequences in non-photosynthetic organisms such as Carboxydothermus hydrogenoformans, a Gram-positive bacterium.
ReferencesRN [1] RM PMID: 12069591 RT Proteomic analysis of a highly active photosystem II preparation from the cyanobacterium Synechocystis sp. PCC 6803 reveals the presence of novel polypeptides. RA Kashino Y, Lauber WM, Carroll JA, Wang Q, Whitmarsh J, Satoh K, Pakrasi HB RL Biochemistry. 2002 Jun 25;41(25):8004-12.
Genome PropertyGenProp0661: photosystem II (HMM)