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Signal peptide-binding domain superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   All alpha proteins [ 46456] (284)
Fold:   Signal peptide-binding domain [ 47445]
Superfamily:   Signal peptide-binding domain [ 47446]
Families:   Signal peptide-binding domain [ 47447] (2)

Superfamily statistics
Genomes (2,427) Uniprot 2013_05 PDB chains (SCOP 1.75)
Domains 2,710 7,927 8
Proteins 2,707 7,924 8

 Functional annotation
General category Regulation
Detailed category Signal transduction

Document: Function annotation of SCOP domain superfamilies

Gene Ontology (high-coverage)

(show details)
GO term FDR (all) SDFO level Annotation (direct or inherited)
Biological Process (BP) cellular aromatic compound metabolic process 0.0007634 Least Informative Direct
Biological Process (BP) heterocycle metabolic process 0.0006399 Least Informative Direct
Biological Process (BP) single-organism cellular process 0.0273 Least Informative Inherited
Biological Process (BP) localization 0.01365 Least Informative Inherited
Biological Process (BP) nitrogen compound metabolic process 0.002504 Least Informative Inherited
Biological Process (BP) organic cyclic compound metabolic process 0.001246 Least Informative Inherited
Biological Process (BP) macromolecule localization 1.539e-05 Moderately Informative Direct
Biological Process (BP) cellular localization 0.0003477 Moderately Informative Direct
Biological Process (BP) organic substance transport 1.313e-05 Moderately Informative Direct
Biological Process (BP) protein transport 1.635e-07 Informative Direct
Biological Process (BP) protein localization to organelle 0.02798 Informative Inherited
Biological Process (BP) cytoplasmic transport 0.04671 Informative Inherited
Molecular Function (MF) binding 0.006051 Least Informative Inherited
Molecular Function (MF) peptide binding 4.137e-10 Highly Informative Direct
Cellular Component (CC) cytoplasmic part 0.001728 Least Informative Inherited
Cellular Component (CC) ribonucleoprotein complex 5.101e-10 Moderately Informative Direct

Document: GO annotation of SCOP domains

Arabidopsis Plant Ontology (AP)

(show details)
AP termFDR (all)SDAP levelAnnotation (direct or inherited)
Plant ANatomical entity (PAN)shoot apex0Least InformativeDirect
Plant ANatomical entity (PAN)shoot internode0Least InformativeDirect
Plant ANatomical entity (PAN)root0Least InformativeDirect
Plant ANatomical entity (PAN)plant embryo0Least InformativeDirect
Plant ANatomical entity (PAN)seed0Least InformativeDirect
Plant ANatomical entity (PAN)vascular leaf0Least InformativeDirect
Plant ANatomical entity (PAN)megasporophyll0Least InformativeDirect
Plant ANatomical entity (PAN)microsporophyll0Least InformativeDirect
Plant ANatomical entity (PAN)sepal0Least InformativeDirect
Plant ANatomical entity (PAN)petal0Least InformativeDirect
Plant ANatomical entity (PAN)stem0Least InformativeDirect
Plant ANatomical entity (PAN)pedicel0Least InformativeDirect
Plant ANatomical entity (PAN)androecium0Least InformativeDirect
Plant ANatomical entity (PAN)gynoecium0Least InformativeDirect
Plant ANatomical entity (PAN)leaf lamina0Least InformativeDirect
Plant ANatomical entity (PAN)collective leaf structure0Least InformativeDirect
Plant ANatomical entity (PAN)phyllome apex0Least InformativeDirect
Plant structure DEvelopment stage (PDE)4 leaf senescence stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)E expanded cotyledon stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)F mature embryo stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)C globular stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)D bilateral stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.02 two leaves visible stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.10 ten leaves visible stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.04 four leaves visible stage0Least InformativeDirect

Document: AP annotation of SCOP domains

UniProtKB KeyWords (KW)

(show details)
KW termFDR (all)SDKW levelAnnotation (direct or inherited)
Cellular componentCytoplasm0Least InformativeDirect
Molecular functionNucleotide-binding0Least InformativeDirect
Molecular functionRNA-binding0Moderately InformativeDirect
Molecular functionGTP-binding0InformativeDirect
Post-translational modificationRibonucleoprotein0Moderately InformativeDirect

Document: KW annotation of SCOP domains

InterPro annotation
Cross references IPR004125 SSF47446 Protein matches
Abstract

This entry represents the M domain of the 54 kDa SRP54 component, a GTP-binding protein that interacts with the signal sequence when it emerges from the ribosome. SRP54 of the signal recognition particle has a three-domain structure: an N-terminal helical bundle domain, a GTPase domain, and the M-domain that binds the 7s RNA and also binds the signal sequence. The extreme C-terminal region is glycine-rich and lower in complexity and poorly conserved between species.

These proteins include Escherichia coli and Bacillus subtilis ffh protein (P48), which seems to be the prokaryotic counterpart of SRP54; signal recognition particle receptor alpha subunit (docking protein), an integral membrane GTP-binding protein which ensures, in conjunction with SRP, the correct targeting of nascent secretory proteins to the endoplasmic reticulum membrane; bacterial FtsY protein, which is believed to play a similar role to that of the docking protein in eukaryotes; the pilA protein from Neisseria gonorrhoeae, the homolog of ftsY; and bacterial flagellar biosynthesis protein flhF.


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

Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Functional annotation · Gene Ontology (high-coverage) · Arabidopsis Plant Ontology (AP) · UniProtKB KeyWords (KW) ]

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 5 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 Signal peptide-binding domain 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 5 hidden Markov models representing the Signal peptide-binding domain 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 · Gene Ontology (high-coverage) · Arabidopsis Plant Ontology (AP) · UniProtKB KeyWords (KW) · Internal database links ]
Please cite: Gough, J., Karplus, K., Hughey, R. and Chothia, C. (2001). "Assignment of Homology to Genome Sequences using a Library of Hidden Markov Models that Represent all Proteins of Known Structure." J. Mol. Biol., 313(4), 903-919.

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© Copyright 2013 The SUPERFAMILY authors and Julian Gough.