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Protein

Metallothionein

Gene
N/A
Organism
Balaena mysticetus (Bowhead whale)
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)DescriptionActionsGraphical viewLength
Metal bindingi5Divalent metal cation; cluster BBy similarity1
Metal bindingi7Divalent metal cation; cluster BBy similarity1
Metal bindingi13Divalent metal cation; cluster BBy similarity1
Metal bindingi15Divalent metal cation; cluster BBy similarity1
Metal bindingi19Divalent metal cation; cluster BBy similarity1
Metal bindingi21Divalent metal cation; cluster BBy similarity1
Metal bindingi24Divalent metal cation; cluster BBy similarity1
Metal bindingi26Divalent metal cation; cluster BBy similarity1
Metal bindingi29Divalent metal cation; cluster BBy similarity1
Metal bindingi33Divalent metal cation; cluster ABy similarity1
Metal bindingi34Divalent metal cation; cluster ABy similarity1
Metal bindingi36Divalent metal cation; cluster ABy similarity1
Metal bindingi37Divalent metal cation; cluster ABy similarity1
Metal bindingi41Divalent metal cation; cluster ABy similarity1
Metal bindingi44Divalent metal cation; cluster ABy similarity1
Metal bindingi48Divalent metal cation; cluster ABy similarity1
Metal bindingi50Divalent metal cation; cluster ABy similarity1
Metal bindingi57Divalent metal cation; cluster ABy similarity1
Metal bindingi59Divalent metal cation; cluster ABy similarity1
Metal bindingi60Divalent metal cation; cluster ABy similarity1

GO - Molecular functioni

GO - Biological processi

Keywordsi

LigandMetal-binding, Metal-thiolate cluster

Names & Taxonomyi

Protein namesi
Recommended name:
Metallothionein
Short name:
MT
OrganismiBalaena mysticetus (Bowhead whale)
Taxonomic identifieri27602 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaLaurasiatheriaCetartiodactylaCetaceaMysticetiBalaenidaeBalaena

Subcellular locationi

GO - Cellular componenti

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001972571 – 61MetallothioneinAdd BLAST61

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei1N-acetylmethionineBy similarity1

Keywords - PTMi

Acetylation

Interactioni

Subunit structurei

Monomer.By similarity

Structurei

3D structure databases

ProteinModelPortaliO18842.
SMRiO18842.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni1 – 29BetaAdd BLAST29
Regioni30 – 61AlphaAdd BLAST32

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

HOVERGENiHBG009063.

Family and domain databases

Gene3Di4.10.10.10. 1 hit.
InterProiView protein in InterPro
IPR003019. Metalthion.
IPR017854. Metalthion_dom.
IPR023587. Metalthion_dom_vert.
IPR000006. Metalthion_vert.
IPR018064. Metalthion_vert_metal_BS.
PANTHERiPTHR23299. PTHR23299. 1 hit.
PfamiView protein in Pfam
PF00131. Metallothio. 1 hit.
PRINTSiPR00860. MTVERTEBRATE.
SUPFAMiSSF57868. SSF57868. 1 hit.
PROSITEiView protein in PROSITE
PS00203. METALLOTHIONEIN_VRT. 1 hit.

Sequencei

Sequence statusi: Complete.

O18842-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDPNCSCAAG GSCTCAGSCK CKECKCTSCK KSCCSCCPPG CTKCAQGCVC
60
KGASDKCNCC A
Length:61
Mass (Da):6,025
Last modified:January 1, 1998 - v1
Checksum:i4D0A7C5E1D23A4A3
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF022117 mRNA. Translation: AAB72006.1.

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.

Entry informationi

Entry nameiMT_BALMY
AccessioniPrimary (citable) accession number: O18842
Entry historyiIntegrated into UniProtKB/Swiss-Prot: September 26, 2001
Last sequence update: January 1, 1998
Last modified: May 10, 2017
This is version 69 of the entry and version 1 of the sequence. See 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