SUPERFAMILY 1.75 HMM library and genome assignments server

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PapD-like superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   All beta proteins [ 48724] (174)
Fold:   Immunoglobulin-like beta-sandwich [ 48725] (28)
Superfamily:   PapD-like [ 49354] (2)
Families:   Pilus chaperone [ 49355] (5)
  MSP-like [ 49360] (4)


Superfamily statistics
Genomes (1,057) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 6,984 30,049 17
Proteins 6,898 29,731 17


Functional annotation
General category Processes_IC
Detailed category Protein modification

Document:
Function annotation of SCOP domain superfamilies

Worm Phenotype (WP)

(show details)
WP termFDR (all)SDWP levelAnnotation (direct or inherited)
Worm Phenotype (WP)larval lethal0.00001223Least InformativeDirect
Worm Phenotype (WP)larval growth variant0.00007654Least InformativeDirect
Worm Phenotype (WP)general pace of development variant0.0000804Least InformativeDirect
Worm Phenotype (WP)retarded heterochronic variations0.0001578Least InformativeDirect
Worm Phenotype (WP)larval development variant0.08671Least InformativeInherited
Worm Phenotype (WP)cell development variant0.9426Least InformativeInherited
Worm Phenotype (WP)organism metabolism processing variant1Least InformativeInherited
Worm Phenotype (WP)sterile progeny0.000002388Moderately InformativeDirect
Worm Phenotype (WP)lipid metabolism variant0.0001119InformativeDirect
Worm Phenotype (WP)dauer lifespan extended0.0006228Highly InformativeDirect

Document: WP annotation of SCOP domains

Fly Phenotype (FP)

(show details)
FP termFDR (all)SDFP levelAnnotation (direct or inherited)
Fly Phenotype (FP)viable0Least InformativeDirect
Fly Phenotype (FP)fertile0Moderately InformativeDirect

Document: FP annotation of SCOP domains

Fly Anatomy (FA)

(show details) Document: FA annotation of SCOP domains

Xenopus Anatomy (XA)

(show details)
XA termFDR (all)SDXA levelAnnotation (direct or inherited)
Xenopus ANatomical entity (XAN)trunk0Least InformativeDirect
Xenopus ANatomical entity (XAN)cavitated compound organ0Least InformativeDirect
Xenopus ANatomical entity (XAN)anatomical system1Least InformativeInherited

Document: XA annotation of SCOP domains

Arabidopsis Plant Ontology (AP)

(show details)
AP termFDR (all)SDAP levelAnnotation (direct or inherited)
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)D bilateral stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.12 twelve leaves visible stage0Least InformativeDirect
Plant structure DEvelopment stage (PDE)LP.08 eight leaves visible 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
Plant structure DEvelopment stage (PDE)LP.06 six leaves visible stage0Least InformativeDirect

Document: AP annotation of SCOP domains

InterPro annotation
Cross references IPR008962 SSF49354 Protein matches
Abstract

The PapD-like superfamily of periplasmic chaperones directs the assembly of over 30 diverse adhesive surface organelles that mediate the attachment of many different pathogenic bacteria to host tissues, a critical early step in the development of disease. PapD, the prototypical chaperone, is necessary for the assembly of P pili. P pili contain the adhesin PapG, which mediates the attachment of uropathogenic Escherichia coli to Gal(alpha) Gal receptors present on kidney cells and are critical for the initiation of pyelonephritis. The PapD-like chaperones consist of two Ig-like domains oriented toward each other, forming L-shaped molecules. In the chaperone-subunit complex, the G1beta strand of the chaperone completes an atypical Ig fold in the subunit by occupying the groove and running parallel to the subunit C-terminal F strand. This donor strand complementation interaction simultaneously stabilizes pilus subunits and caps their interactive surfaces, preventing their premature oligomerisation in the periplasm. During pilus biogenesis, the highly conserved N-terminal extension of one subunit has been proposed to displace the chaperone G1beta strand from its neighbouring subunit in a mechanism termed donor strand exchange [PubMed10859353].

This entry represents the immunoglobulin (Ig)-like beta-sandwich domain found in PapD, as well as in other periplasmic chaperone proteins that include FimC and SfaE from Escherichia coli, and Caf1m from Yersinia pestis [PubMed15372038]. In addition, major sperm proteins (MSP) and other related sperm proteins (such as WR4 and SSP-19) contain an Ig-like domain with a similar structural fold to PapD [PubMed12051923, PubMed15388931]. Major sperm proteins are central components in molecular interactions underlying sperm motility, with many isoforms existing in Caenorhabditis elegans.


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 · Worm Phenotype (WP) · Fly Phenotype (FP) · Fly Anatomy (FA) · Xenopus Anatomy (XA) · Arabidopsis Plant Ontology (AP) ]

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 PapD-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 PapD-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 · Worm Phenotype (WP) · Fly Phenotype (FP) · Fly Anatomy (FA) · Xenopus Anatomy (XA) · Arabidopsis Plant Ontology (AP) · Internal database links ]