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Protein

Metallothionein A

Gene

mta

Organism
Salvelinus alpinus (Arctic char) (Salmo alpinus)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Metallothioneins have a high content of cysteine residues that bind various heavy metals.By similarity

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi4 – 41Divalent metal cation; cluster B
Metal bindingi6 – 61Divalent metal cation; cluster B
Metal bindingi12 – 121Divalent metal cation; cluster B
Metal bindingi14 – 141Divalent metal cation; cluster B
Metal bindingi18 – 181Divalent metal cation; cluster B
Metal bindingi20 – 201Divalent metal cation; cluster B
Metal bindingi23 – 231Divalent metal cation; cluster B
Metal bindingi25 – 251Divalent metal cation; cluster B
Metal bindingi28 – 281Divalent metal cation; cluster B
Metal bindingi33 – 331Divalent metal cation; cluster A
Metal bindingi34 – 341Divalent metal cation; cluster A
Metal bindingi36 – 361Divalent metal cation; cluster A
Metal bindingi37 – 371Divalent metal cation; cluster A
Metal bindingi41 – 411Divalent metal cation; cluster A
Metal bindingi44 – 441Divalent metal cation; cluster A
Metal bindingi48 – 481Divalent metal cation; cluster A
Metal bindingi50 – 501Divalent metal cation; cluster A
Metal bindingi55 – 551Divalent metal cation; cluster A
Metal bindingi59 – 591Divalent metal cation; cluster A
Metal bindingi60 – 601Divalent metal cation; cluster A

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Ligandi

Metal-binding, Metal-thiolate cluster

Names & Taxonomyi

Protein namesi
Recommended name:
Metallothionein A
Short name:
MT-A
Gene namesi
Name:mta
OrganismiSalvelinus alpinus (Arctic char) (Salmo alpinus)
Taxonomic identifieri8036 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiProtacanthopterygiiSalmoniformesSalmonidaeSalmoninaeSalvelinus

Subcellular locationi

GO - Cellular componenti

Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 6161Metallothionein APRO_0000197312Add
BLAST

Structurei

3D structure databases

ProteinModelPortaliP68505.
SMRiP68505. Positions 2-29, 32-61.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni1 – 2828BetaAdd
BLAST
Regioni29 – 6133AlphaAdd
BLAST

Domaini

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 similaritiesi

Phylogenomic databases

HOVERGENiHBG095741.

Family and domain databases

Gene3Di4.10.10.10. 1 hit.
InterProiIPR003019. Metalthion.
IPR017854. Metalthion_dom.
IPR023587. Metalthion_dom_vert.
IPR000006. Metalthion_vert.
IPR018064. Metalthion_vert_metal_BS.
[Graphical view]
PANTHERiPTHR23299. PTHR23299. 1 hit.
PfamiPF00131. Metallothio. 1 hit.
[Graphical view]
PRINTSiPR00860. MTVERTEBRATE.
SUPFAMiSSF57868. SSF57868. 1 hit.
PROSITEiPS00203. METALLOTHIONEIN_VRT. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P68505-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDPCECSKTG SCNCGGSCKC SNCACTSCKK ASCCDCCPSG CSKCASGCVC
60
KGKTCDTSCC Q
Length:61
Mass (Da):6,064
Last modified:November 23, 2004 - v1
Checksum:i901A8E8084A63EFA
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti14 – 141C → S in AAP31403 (Ref. 3) Curated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF013800 mRNA. Translation: AAB66342.1.
AF098071 mRNA. Translation: AAC68704.1.
AY267819 Genomic DNA. Translation: AAP31403.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF013800 mRNA. Translation: AAB66342.1.
AF098071 mRNA. Translation: AAC68704.1.
AY267819 Genomic DNA. Translation: AAP31403.1.

3D structure databases

ProteinModelPortaliP68505.
SMRiP68505. Positions 2-29, 32-61.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

HOVERGENiHBG095741.

Family and domain databases

Gene3Di4.10.10.10. 1 hit.
InterProiIPR003019. Metalthion.
IPR017854. Metalthion_dom.
IPR023587. Metalthion_dom_vert.
IPR000006. Metalthion_vert.
IPR018064. Metalthion_vert_metal_BS.
[Graphical view]
PANTHERiPTHR23299. PTHR23299. 1 hit.
PfamiPF00131. Metallothio. 1 hit.
[Graphical view]
PRINTSiPR00860. MTVERTEBRATE.
SUPFAMiSSF57868. SSF57868. 1 hit.
PROSITEiPS00203. METALLOTHIONEIN_VRT. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Metallothionein cDNA sequences and gene expression in arctic char (Salvelinus alpinus) following metal and PCB exposure."
    Gerpe M., Kling P., Olsson P.-E.
    Mar. Environ. Res. 46:551-554(1998)
    Cited for: NUCLEOTIDE SEQUENCE.
    Tissue: Liver.
  2. "Identical coding sequence of metallothionein-A in salmonid fishes inferred from cDNA sequence of arctic char (Salvelinus alpinus)."
    Egg M., Sturmbauer C., Dallinger R.
    Submitted (OCT-1998) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE.
    Tissue: Liver.
  3. "Discovering single nucleotide polymorphisms in the introns of fish genes."
    McGowan C., Davidson E.A., Davidson W.S.
    Submitted (APR-2003) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].

Entry informationi

Entry nameiMTA_SALAL
AccessioniPrimary (citable) accession number: P68505
Secondary accession number(s): P09861, Q7ZZW5
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 23, 2004
Last sequence update: November 23, 2004
Last modified: December 9, 2015
This is version 41 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Documents

  1. Metallothioneins
    Classification of metallothioneins and list of entries
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.