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Protein

Metallothionein A

Gene

mta

Organism
Gymnodraco acuticeps (Antarctic dragonfish)
Status
Reviewed-Annotation score: Annotation score: 2 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 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

LigandMetal-binding, Metal-thiolate cluster, Zinc

Names & Taxonomyi

Protein namesi
Recommended name:
Metallothionein A
Short name:
MT-A
Short name:
MT-I
Gene namesi
Name:mta
OrganismiGymnodraco acuticeps (Antarctic dragonfish)
Taxonomic identifieri8218 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiNeoteleosteiAcanthomorphataEupercariaPerciformesNotothenioideiBathydraconidaeGymnodraco

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001972861 – 60Metallothionein AAdd BLAST60

Structurei

3D structure databases

ProteinModelPortaliP68507.
SMRiP68507.
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

Phylogenomic databases

HOVERGENiHBG096111.

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.

P68507-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDPCDCSKSG TCNCGGSCTC TNCSCKSCKK SCCPCCPSGC TKCASGCVCK
60
GKTCDTSCCQ
Length:60
Mass (Da):6,005
Last modified:November 23, 2004 - v1
Checksum:i5966E6145A2C424B
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AJ007560 mRNA. Translation: CAA07555.1.

Similar proteinsi

Entry informationi

Entry nameiMTA_GYMAC
AccessioniPrimary (citable) accession number: P68507
Secondary accession number(s): O13258
Entry historyiIntegrated into UniProtKB/Swiss-Prot: November 23, 2004
Last sequence update: November 23, 2004
Last modified: May 10, 2017
This is version 43 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