SUPERFAMILY 1.73 HMM library and genome assignments server


Pectin lyase-like superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   All beta proteins [ 48724] (165)
Fold:   Single-stranded right-handed beta-helix [ 51125] (8)
  superhelix turns are made of parallel beta-strands and (short) turns
Superfamily:   Pectin lyase-like [ 51126] (11)
Families:   Pectate lyase-like [ 51127] (2)
  Pectin lyase [ 51133]
  Galacturonase [ 51137] (2)
  Chondroitinase B [ 51144]
  iota-carrageenase [ 69333]
  Pectate transeliminase [ 101951]
  Dextranase, catalytic domain [ 101954]
  Pectin methylesterase [ 51147]
  P22 tailspike protein [ 51150]
  Virulence factor P.69 pertactin [ 51153]
  Filamentous hemagglutinin FhaB, secretion domain [ 101957]


Superfamily statistics
Genomes (919) UniProt 15.0 PDB chains (SCOP 1.73)
Domains 10,339 11,568 36
Proteins 9,199 10,342 36


Functional annotation
General category Metabolism
Detailed category Polysaccharide metabolism and transport

Function annotation of SCOP domain superfamilies
InterPro annotation
Cross references IPR011050 SSF51126 Protein matches
Abstract

Microbial pectin and pectate lyases are virulence factors that degrade the pectic components of the plant cell wall [PubMed9195887]. When the backbone of pectin is methylated it is known as pectin and is cleaved by pectin lyase, and when it is demethylated it is known as pectate and is cleaved by pectate lyase. Pectin lyase from Aspergillus niger displays a single-stranded, right-handed parallel beta-helix topology , where each coil contains three beta-strands and three turn regions. Several other virulence factors share this beta-helix topology, although they vary in the number of coils, including bacterial pectate lyases, fungal and bacterial galacturonases (such as rhamnogalacturonase and polygalacturonase), chrondroitinase B from Flavobacterium sp., iota-carrageenase from Alteromonas sp., pectin methylesterase (PemA), P22 tailspike protein from Salmonella phage P22, and the virulence factor P.69 pertactin from Bordetella pertussis that mediates adhesion to target mammalian cells [PubMed9724625].


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 24 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 Pectin lyase-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 24 hidden Markov models representing the Pectin lyase-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 ]