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IPR000923 is a Blue (type 1) copper domain.
<p>The small blue proteins are single-domain proteins. The domain consists of a β-sheet sandwich, composed of eight strands in two sheets, and has predominantly antiparallel β-strand topology [[cite:PUB00001602]]. This entry represents the blue copper domain.</p> <p>Blue (type 1) copper proteins constitute a diverse class of proteins, including small blue proteins and multicopper oxidases. They bind copper and are characterised by an intense electronic absorption band near 600 nm [[cite:PUB00002400], [cite:PUB00003425]].</p> <p>The most well known members of this class of proteins are the small blue proteins, which includes azurins and plastocyanins. It is a group of monomeric proteins which contain one copper ion per molecule. The plant chloroplastic plastocyanins exchange electrons with cytochrome c6, and the distantly related bacterial azurins exchange electrons with cytochrome c551. This group also includes amicyanin from bacteria such as Methylobacterium extorquens or Paracoccus versutus (Thiobacillus versutus) that can grow on methylamine; auracyanins A and B from Chloroflexus aurantiacus [[cite:PUB00002762]]; blue copper protein from Alcaligenes faecalis; cupredoxin (CPC) from Cucumis sativus (Cucumber) peelings [[cite:PUB00001648]]; cusacyanin (basic blue protein; plantacyanin, CBP) from cucumber; halocyanin from Natronomonas pharaonis (Natronobacterium pharaonis) [[cite:PUB00002847]], a membrane associated copper-binding protein; pseudoazurin from Pseudomonas; rusticyanin from Thiobacillus ferrooxidans [[cite:PUB00001621]]; stellacyanin from Rhus vernicifera (Japanese lacquer tree); umecyanin from the roots of Armoracia rusticana (Horseradish); and allergen Ra3 from ragweed. This pollen protein is evolutionary related to the above proteins, but seems to have lost the ability to bind copper.</p>
This description is obtained from EB-eye REST.
GO predictions are based solely on the InterPro-to-GO mappings published by EMBL-EBI, which are in turn based on the mapping of predicted domains to the InterPro dataset. The InterPro-to-GO mapping was last updated on , while the GO metadata was last updated on .
| GO term | Namespace | Name | Definition | Relationships |
|---|---|---|---|---|
| Molecular function | Copper ion binding | Interacting selectively and non-covalently with copper (Cu) ions. | ||
| Molecular function | Electron transfer activity | Any molecular entity that serves as an electron acceptor and electron donor in an electron transport chain. An electron transport chain is a process in which a series of electron carriers operate together to transfer electrons from donors to any of several different terminal electron acceptors to generate a transmembrane electrochemical gradient. |
| Transcript | Name | Description | Predicted domains | Domain count |
|---|---|---|---|---|
| – | PREDICTED: plastocyanin, chloroplastic-like [Cicer arietinum] gi|502131189|ref|XP_004500905.1| | 16 | ||
| – | Plastocyanin; TAIR: AT1G76100.1 plastocyanin 1; Swiss-Prot: sp|P16002|PLAS_PEA Plastocyanin, chloroplastic; TrEMBL-Plants: tr|I3S8T0|I3S8T0_LOTJA Plastocyanin; Found in the gene: LotjaGi1g1v0432600 | 16 |
A list of co-occurring predicted domains within the L. japonicus gene space:
| Predicted domain | Source | Observations | Saturation (%) |
|---|---|---|---|
| cd04219 | CDD | 1 | 50.00 |