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Protein

Metallothionein

Gene

mt

Organism
Pseudopleuronectes americanus (Winter flounder) (Pleuronectes americanus)
Status
Reviewed-Annotation score: Annotation score: 2 out of 5-Experimental evidence at protein leveli

Functioni

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

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi4Divalent metal cation; cluster BBy similarity1
Metal bindingi6Divalent metal cation; cluster BBy similarity1
Metal bindingi12Divalent metal cation; cluster BBy similarity1
Metal bindingi14Divalent metal cation; cluster BBy similarity1
Metal bindingi18Divalent metal cation; cluster BBy similarity1
Metal bindingi20Divalent metal cation; cluster BBy similarity1
Metal bindingi23Divalent metal cation; cluster BBy similarity1
Metal bindingi25Divalent metal cation; cluster BBy similarity1
Metal bindingi28Divalent metal cation; cluster BBy similarity1
Metal bindingi32Divalent metal cation; cluster ABy similarity1
Metal bindingi33Divalent metal cation; cluster ABy similarity1
Metal bindingi35Divalent metal cation; cluster ABy similarity1
Metal bindingi36Divalent metal cation; cluster ABy similarity1
Metal bindingi40Divalent metal cation; cluster ABy similarity1
Metal bindingi43Divalent metal cation; cluster ABy similarity1
Metal bindingi47Divalent metal cation; cluster ABy similarity1
Metal bindingi49Divalent metal cation; cluster ABy similarity1
Metal bindingi54Divalent metal cation; cluster ABy similarity1
Metal bindingi58Divalent metal cation; cluster ABy similarity1
Metal bindingi59Divalent metal cation; cluster ABy similarity1

GO - Molecular functioni

Complete GO annotation...

Keywords - Ligandi

Copper, Metal-binding, Metal-thiolate cluster

Names & Taxonomyi

Protein namesi
Recommended name:
Metallothionein
Short name:
MT
Gene namesi
Name:mt
OrganismiPseudopleuronectes americanus (Winter flounder) (Pleuronectes americanus)
Taxonomic identifieri8265 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiNeoteleosteiAcanthomorphataCarangariaPleuronectiformesPleuronectoideiPleuronectidaePseudopleuronectes

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001973101 – 60MetallothioneinAdd BLAST60

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei1N-acetylmethionine1 Publication1

Keywords - PTMi

Acetylation

Structurei

3D structure databases

ProteinModelPortaliP55945.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni1 – 28BetaAdd BLAST28
Regioni29 – 60AlphaAdd 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

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.

P55945-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDPCECSKTG TCNCGGSCTC KNCSCTTCTK SCCPCCPSGC PKCASGCVCK
60
GKTCDTTCCQ
Length:60
Mass (Da):6,030
Last modified:November 23, 2004 - v2
Checksum:i88FBA6EE5C7C4717
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X13594 mRNA. Translation: CAA31930.1.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
X13594 mRNA. Translation: CAA31930.1.

3D structure databases

ProteinModelPortaliP55945.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

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...

Entry informationi

Entry nameiMT_PSEAM
AccessioniPrimary (citable) accession number: P55945
Secondary accession number(s): Q6LBT7
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 23, 2004
Last modified: October 5, 2016
This is version 68 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Direct protein sequencing

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.