Summary: Photosystem I protein M (PsaM)
Photosystem I protein M (PsaM) Provide feedback
This family consists of several plant and cyanobacterial photosystem I protein M (PsaM) sequences. PsaM forms part of the photosystem I complex and its binding is stabilised by PsaI .
Schluchter WM, Shen G, Zhao J, Bryant DA; , Photochem Photobiol 1996;64:53-66.: Characterization of psaI and psaL mutants of Synechococcus sp. strain PCC 7002: a new model for state transitions in cyanobacteria. PUBMED:8787020 EPMC:8787020
External database links
This tab holds annotation information from the InterPro database.
InterPro entry IPR010010
Members of this protein family are PsaM, which is subunit XII of the photosystem I reaction centre. PsaM forms part of the photosystem I complex and its binding is stabilised by PsaI [PUBMED:8787020]. This protein is found in both the Cyanobacteria and the chloroplasts of plants, but is absent from non-oxygenic photosynthetic bacteria such as Rhodobacter sphaeroides. Species that contain photosystem I also contain photosystem II, which splits water and releases molecular oxygen.
The mapping between Pfam and Gene Ontology is provided by InterPro. If you use this data please cite InterPro.
|Cellular component||plasma membrane-derived photosystem I (GO:0030094)|
|photosystem I (GO:0009522)|
|Biological process||photosynthesis (GO:0015979)|
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We make a range of alignments for each Pfam-A family:
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Curation and family details
|Seed source:||Pfam-B_21548 (release 10.0)|
|Number in seed:||40|
|Number in full:||300|
|Average length of the domain:||28.70 aa|
|Average identity of full alignment:||48 %|
|Average coverage of the sequence by the domain:||91.33 %|
|HMM build commands:||
build method: hmmbuild -o /dev/null HMM SEED
search method: hmmsearch -Z 23193494 -E 1000 --cpu 4 HMM pfamseq
|Family (HMM) version:||8|
|Download:||download the raw HMM for this family|
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There are 2 interactions for this family. More...
We determine these interactions using iPfam, which considers the interactions between residues in three-dimensional protein structures and maps those interactions back to Pfam families. You can find more information about the iPfam algorithm in the journal article that accompanies the website.
For those sequences which have a structure in the Protein DataBank, we use the mapping between UniProt, PDB and Pfam coordinate systems from the PDBe group, to allow us to map Pfam domains onto UniProt sequences and three-dimensional protein structures. The table below shows the structures on which the PsaM domain has been found. There are 2 instances of this domain found in the PDB. Note that there may be multiple copies of the domain in a single PDB structure, since many structures contain multiple copies of the same protein seqence.
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