SUPERFAMILY 1.75 HMM library and genome assignments server


Subunit III of photosystem I reaction centre, PsaF superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Membrane and cell surface proteins and peptides [ 56835] (58)
Fold:   Single transmembrane helix [ 81407] (38)
Superfamily:   Subunit III of photosystem I reaction centre, PsaF [ 81536]
Families:   Subunit III of photosystem I reaction centre, PsaF [ 81535]


Superfamily statistics
Genomes (147) Uniprot 2014_06 PDB chains (SCOP 1.75)
Domains 193 275 1
Proteins 193 275 1


Functional annotation
General category Metabolism
Detailed category Photosynthesis

Document:
Function annotation of SCOP domain superfamilies

UniProtKB KeyWords (KW)

(show details)
KW termFDR (all)SDKW levelAnnotation (direct or inherited)
Biological processPhotosynthesis0InformativeDirect
Cellular componentMembrane0.0001466Least InformativeDirect
Cellular componentPlastid3.089e-14Moderately InformativeDirect
Cellular componentThylakoid0InformativeDirect
Cellular componentPhotosystem I0Highly InformativeDirect
DomainSignal1.975e-06Least InformativeDirect
DomainTransmembrane0.002294Least InformativeInherited

Document: KW annotation of SCOP domains

InterPro annotation
Cross references IPR003666 SSF81536 Protein matches
Abstract Photosystem I (PSI) is an integral membrane protein complex that uses light energy to mediate electron transfer from plastocyanin to ferredoxin. Subunit III (or PsaF) is one of at least 14 different subunits that compose the photosystem I reaction centre (PSI-RC) [PubMed8443351].

InterPro database


PDBeMotif information about ligands, sequence and structure motifs
Cross references PDB entries
Ligand binding statistics
Nucleic-acid binding statistics
Occurrence of secondary structure elements
Occurrence of small 3D structural motifs

PDBeMotif resource

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Internal database links

Browse genome assignments for this superfamily. The SUPERFAMILY hidden Markov model library has been used to carry out SCOP domain assignments to all genomes at the superfamily level.


Alignments of sequences to 1 models in this superfamily are available by clicking on the 'Alignments' icon above. PDB sequences less than 40% identical are shown by default, but any other sequence(s) may be aligned. Select PDB sequences, genome sequences, or paste in or upload your own sequences.


Browse and view proteins in genomes which have different domain combinations including a Subunit III of photosystem I reaction centre, PsaF domain.


Examine the distribution of domain superfamilies, or families, across the major taxonomic kingdoms or genomes within a kingdom. This gives an immediate impression of how superfamilies, or families, are restricted to certain kingdoms of life.


Explore domain occurrence network where nodes represent genomes and edges are domain architectures (shared between genomes) containing the superfamily of interest.

There are 1 hidden Markov models representing the Subunit III of photosystem I reaction centre, PsaF superfamily. Information on how the models are built, and plots showing hydrophobicity, match emmission probabilities and insertion/deletion probabilities can be inspected.


Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · UniProtKB KeyWords (KW) · Internal database links ]