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Protein

Metallothionein

Gene

mt

Organism
Pseudopleuronectes americanus (Winter flounder) (Pleuronectes americanus)
Status
Reviewed-Annotation score: -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

Keywordsi

LigandCopper, 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

Proteomic databases

PRIDEiP55945

Structurei

3D structure databases

ProteinModelPortaliP55945
SMRiP55945
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
InterProiView protein in InterPro
IPR003019 Metalthion
IPR017854 Metalthion_dom_sf
IPR023587 Metalthion_dom_sf_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.

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

Similar proteinsi

Entry informationi

Entry nameiMT_PSEAM
AccessioniPrimary (citable) accession number: P55945
Secondary accession number(s): Q6LBT7
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 1, 1997
Last sequence update: November 23, 2004
Last modified: May 23, 2018
This is version 72 of the entry and version 2 of the sequence. See 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

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