SUPERFAMILY 1.75 HMM library and genome assignments server

Superfamily is undergoing a server migration - you are now browsing on the new server. Please contact us if you experience any problems.


5' to 3' exonuclease, C-terminal subdomain superfamily

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   All alpha proteins [ 46456] (284)
Fold:   SAM domain-like [ 47768] (16)
Superfamily:   5' to 3' exonuclease, C-terminal subdomain [ 47807]
Families:   5' to 3' exonuclease, C-terminal subdomain [ 47808] (4)


Superfamily statistics
Genomes (3,219) Uniprot 2018_03 genome PDB chains (SCOP 1.75)
Domains 6,284 38,516 12
Proteins 6,275 38,496 12


Functional annotation
General category Information
Detailed category DNA replication/repair

Document:
Function annotation of SCOP domain superfamilies

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEO levelAnnotation (direct or inherited)
Enzyme Commission (EC)Nucleotidyltransferases0Least InformativeDirect
Enzyme Commission (EC)DNA-directed DNA polymerase0Moderately InformativeDirect

Document: EC annotation of SCOP domains

Disease Ontology (DO)

(show details) Document: DO annotation of SCOP domains

Mouse Phenotype (MP)

(show details)
MP termFDR (all)SDMP levelAnnotation (direct or inherited)
Mammalian Phenotype (MP)immune system phenotype0Least InformativeDirect
Mammalian Phenotype (MP)hematopoietic system phenotype0Least InformativeDirect
Mammalian Phenotype (MP)mortality/aging0Least InformativeDirect
Mammalian Phenotype (MP)premature death0InformativeDirect

Document: MP annotation of SCOP domains

Worm Phenotype (WP)

(show details)
WP termFDR (all)SDWP levelAnnotation (direct or inherited)
Worm Phenotype (WP)general pace of development variant0Least InformativeDirect
Worm Phenotype (WP)retarded heterochronic variations0Least InformativeDirect
Worm Phenotype (WP)cell physiology variant0Least InformativeDirect
Worm Phenotype (WP)organism environmental stimulus response variant0.00684Least InformativeInherited
Worm Phenotype (WP)organism stress response variant0.00005934Moderately InformativeDirect
Worm Phenotype (WP)apoptosis variant0.00007638Moderately InformativeDirect
Worm Phenotype (WP)cell homeostasis metabolism variant0.05662Moderately InformativeInherited
Worm Phenotype (WP)cell stress response variant0.000007025InformativeDirect

Document: WP annotation of SCOP domains

Yeast Phenotype (YP)

(show details) Document: YP annotation of SCOP domains

Xenopus Anatomy (XA)

(show details)
XA termFDR (all)SDXA levelAnnotation (direct or inherited)
Xenopus ANatomical entity (XAN)genital system0Least InformativeDirect

Document: XA annotation of SCOP domains

Arabidopsis Plant Ontology (AP)

(show details)
AP termFDR (all)SDAP levelAnnotation (direct or inherited)
Plant ANatomical entity (PAN)guard cell0Least InformativeDirect
Plant structure DEvelopment stage (PDE)E expanded cotyledon stage0Least InformativeDirect

Document: AP annotation of SCOP domains

Enzyme Commission (EC)

(show details)
EC termFDR (all)SDEC levelAnnotation (direct or inherited)
Enzyme Commission (EC)Transferring phosphorus-containing groups0Least InformativeDirect
Enzyme Commission (EC)Nucleotidyltransferases0Moderately InformativeDirect
Enzyme Commission (EC)DNA-directed DNA polymerase0InformativeDirect

Document: EC annotation of SCOP domains

InterPro annotation
Cross references IPR008918 SSF47807 Protein matches
Abstract

The helix-hairpin-helix (HhH) motif is an around 20 amino acids domain present in prokaryotic and eukaryotic non-sequence-specific DNA binding proteins. The HhH motif is similar to, but distinct from, the helix-turn-helix (HtH) and the helix-loop-helix (HLH) motifs. All three motifs have two helices (H1 and H2) connected by a short turn. DNA-binding proteins with a HhH structural motif are involved in non-sequence-specific DNA binding that occurs via the formation of hydrogen bonds between protein backbone nitrogens and DNA phosphate groups. These HhH motifs are observed in DNA repair enzymes and in DNA polymerases. By contrast, proteins with a HtH motif bind DNA in a sequence-specific manner through the binding of H2 with the major groove; these proteins are primarily gene regulatory proteins. DNA-binding proteins with the HLH structural motif are transcriptional regulatory proteins and are principally related to a wide array of developmental processes [PubMed15356290].

Examples of proteins that contain a HhH motif include the 5'-exonuclease domains of prokaryotic DNA polymerases [PubMed10666572], the eukaryotic/prokaryotic RAD2 family of 5'-3' exonulceases such as T4 RNase H and T5 [PubMed8674116, PubMed9874768], eukaryotic 5' endonucleases such as FEN-1 (Flap) [PubMed9699635], and some viral exonucleases.


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 · Enzyme Commission (EC) · Disease Ontology (DO) · Mouse Phenotype (MP) · Worm Phenotype (WP) · Yeast Phenotype (YP) · Xenopus Anatomy (XA) · Arabidopsis Plant Ontology (AP) · Enzyme Commission (EC) ]

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 8 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 5' to 3' exonuclease, C-terminal subdomain 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 8 hidden Markov models representing the 5' to 3' exonuclease, C-terminal subdomain 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 · Enzyme Commission (EC) · Disease Ontology (DO) · Mouse Phenotype (MP) · Worm Phenotype (WP) · Yeast Phenotype (YP) · Xenopus Anatomy (XA) · Arabidopsis Plant Ontology (AP) · Enzyme Commission (EC) · Internal database links ]