SUPERFAMILY 1.75 HMM library and genome assignments server

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1sb6 A: PDB entry domain

SCOP classification
Root:   SCOP hierarchy in SUPERFAMILY [ 0] (11)
Class:   Alpha and beta proteins (a+b) [ 53931] (376)
Fold:   Ferredoxin-like [ 54861] (59)
Superfamily:   HMA, heavy metal-associated domain [ 55008]
Family:   HMA, heavy metal-associated domain [ 55009] (8)
Protein:   Copper chaperone [55017]
PDB Entry Domain:   1sb6 A: [ 98790]
  SUPERFAMILY domain annotation for 1sb6a
  PDB structure summary for 1sb6

InterPro annotation
Cross references IPR006121 SSF55008 Protein matches

Proteins that transport heavy metals in micro-organisms and mammals share similarities in their sequences and structures.

These proteins provide an important focus for research, some being involved in bacterial resistance to toxic metals, such as lead and cadmium, while others are involved in inherited human syndromes, such as Wilson's and Menke's diseases [PubMed8091505].

A conserved domain has been found in a number of these heavy metal transport or detoxification proteins [PubMed8091505]. The domain, which has been termed Heavy-Metal-Associated (HMA), contains two conserved cysteines that are probably involved in metal binding.

Structure solution of the fourth HMA domain of the Menke┐s copper transporting ATPase shows a well-defined structure comprising a four-stranded antiparallel beta-sheet and two alpha helices packed in an alpha-beta sandwich fold [PubMed9437429]. This fold is common to other domains and is classified as "ferredoxin-like".

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

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Internal database links

Superfamily level     Family level

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.

Superfamily level     Family level

Alignments of sequences to 33 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.

Superfamily level

Browse and view proteins in genomes which have different domain combinations including a HMA, heavy metal-associated domain domain.

Superfamily level     Family level

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.

Jump to [ Top of page · SCOP classification · InterPro annotation · PDBeMotif links · Internal database links ]