SUPERFAMILY 1.75 HMM library and genome assignments server

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OmpA-like superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Alpha and beta proteins (a+b) [ 53931] (376)
Fold:   Bacillus chorismate mutase-like [ 55297] (9)
Superfamily:   OmpA-like [ 103088]
Families:   OmpA-like [ 103089] (2)

Superfamily statistics
Genomes (1,949) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 9,982 99,277 4
Proteins 9,905 98,280 4

Functional annotation
General category Metabolism
Detailed category Cell envelope metabolism and transport

Function annotation of SCOP domain superfamilies

InterPro annotation
Cross references IPR006665 SSF103088 Protein matches

This entry represents domain with a beta/alpha/beta/alpha-beta(2) structure found in the C-terminal region of many Gram-negative bacterial outer membrane proteins [PubMed1538702], such as porin-like integral membrane proteins (such as ompA) [PubMed2202726], small lipid-anchored proteins (such as pal) [PubMed10515919], and MotB proton channels [PubMed17052729]. The N-terminal half is variable although some of the proteins in this group have the OmpA-like transmembrane domain at the N terminus. OmpA from Escherichia coli is required for pathogenesis, and can interact with host receptor molecules [PubMed17368067]. MotB (and MotA) serves two functions in E.coli, the MotA(4)-MotB(2) complex attaches to the cell wall via MotB to form the stator of the flagellar motor, and the MotA-MotB complex couples the flow of ions across the cell membrane to movement of the rotor [PubMed17052729].

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 ]

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 13 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 OmpA-like 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 13 hidden Markov models representing the OmpA-like 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 · Internal database links ]