P68506 (MTA_CHIHA) Reviewed, UniProtKB/Swiss-Prot
Last modified
October 19, 2011.
Version 29.
History...
Clusters with 
Names·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize orderNames and origin
| Protein names | Recommended name: Metallothionein A Short name=MT-A Short name=MT-I | ||
| Gene names |
| ||
| Organism | Chionodraco hamatus (Antarctic teleost icefish) (Chaenichthys rhinoceratus hamatus) | ||
| Taxonomic identifier | 36188 [NCBI] | ||
| Taxonomic lineage | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Actinopterygii › Neopterygii › Teleostei › Euteleostei › Neoteleostei › Acanthomorpha › Acanthopterygii › Percomorpha › Perciformes › Notothenioidei › Channichthyidae › Chionodraco |
Protein attributes
| Sequence length | 60 AA. |
| Sequence status | Complete. |
| Protein existence | Inferred from homology |
General annotation (Comments)
| Function | Metallothioneins have a high content of cysteine residues that bind various heavy metals By similarity. |
| Domain | Class I metallothioneins contain 2 metal-binding domains: four divalent ions are chelated within cluster A of the alpha domain and are coordinated via cysteinyl thiolate bridges to 11 cysteine ligands. Cluster B, the corresponding region within the beta domain, can ligate three divalent ions to 9 cysteines. |
| Sequence similarities | Belongs to the metallothionein superfamily. Type 1 family. |
Ontologies
| Keywords | |
|---|---|
| Ligand | Metal-binding Metal-thiolate cluster Zinc |
| Gene Ontology (GO) | |
| Molecular function | metal ion binding Inferred from electronic annotation. Source: UniProtKB-KW |
| Complete GO annotation... | |
Sequence annotation (Features)
| Feature key | Position(s) | Length | Description | Graphical view | Feature identifier | ||||
Molecule processing | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chain | 1 – 60 | 60 | Metallothionein A | PRO_0000197275 | |||||
Regions | |||||||||
| Region | 1 – 28 | 28 | Beta | ||||||
| Region | 29 – 60 | 32 | Alpha | ||||||
Sites | |||||||||
| Metal binding | 4 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 6 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 12 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 14 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 18 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 20 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 23 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 25 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 28 | 1 | Divalent metal cation; cluster B By similarity | ||||||
| Metal binding | 32 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 33 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 35 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 36 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 40 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 43 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 47 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 49 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 54 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 58 | 1 | Divalent metal cation; cluster A By similarity | ||||||
| Metal binding | 59 | 1 | Divalent metal cation; cluster A By similarity | ||||||
Sequences
References
| [1] | "Cadmium-induced differential accumulation of metallothionein isoforms in the Antarctic icefish, which exhibits no basal metallothionein protein but high endogenous mRNA levels." Carginale V., Scudiero R., Capasso C., Capasso A., Kille P., di Prisco G., Parisi E. Biochem. J. 332:475-481(1998) [PubMed: 9601077] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [MRNA]. Tissue: Liver. |
| + | Additional computationally mapped references. |
Cross-references
Sequence databases | |
|---|---|
| EMBL GenBank DDBJ | Y12580 mRNA. Translation: CAA73159.1. |
3D structure databases | |
| ProteinModelPortal | P68506. |
| SMR | P68506. Positions 2-29, 31-60. |
| ModBase | Search... |
Protocols and materials databases | |
| StructuralBiologyKnowledgebase | Search... |
Phylogenomic databases | |
| HOVERGEN | HBG096111. |
Family and domain databases | |
| InterPro | IPR017854. Metalthion_dom. IPR023587. Metalthion_dom_vert. IPR003019. Metalthion_sfam_euk. IPR000006. Metalthion_vert. IPR018064. Metalthion_vert_metal_BS. [Graphical view] |
| Gene3D | G3DSA:4.10.10.10. Metallothionein_vert. 1 hit. |
| PANTHER | PTHR23299. Metallothionein_vert. 1 hit. |
| Pfam | PF00131. Metallothio. 1 hit. [Graphical view] |
| PRINTS | PR00860. MTVERTEBRATE. |
| SUPFAM | SSF57868. Metallothionein_sfam. 1 hit. |
| PROSITE | PS00203. METALLOTHIONEIN_VRT. 1 hit. [Graphical view] |
| ProtoNet | Search... |
Entry information
| Entry name | MTA_CHIHA | ||||||||
| Accession | Primary (citable) accession number: P68506 Secondary accession number(s): O13258 | ||||||||
| Entry history |
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| Entry status | Reviewed (UniProtKB/Swiss-Prot) | ||||||||
| Annotation program | Chordata Protein Annotation Program | ||||||||
Relevant documents
| Metallothioneins Classification of metallothioneins and list of entries |
| SIMILARITY comments Index of protein domains and families |