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Protein

Metallothionein-2

Gene

Mt2

Organism
Rattus norvegicus (Rat)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Metallothioneins have a high content of cysteine residues that bind various heavy metals; these proteins are transcriptionally regulated by both heavy metals and glucocorticoids.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi5Divalent metal cation; cluster B1
Metal bindingi7Divalent metal cation; cluster B1
Metal bindingi13Divalent metal cation; cluster B1
Metal bindingi15Divalent metal cation; cluster B1
Metal bindingi19Divalent metal cation; cluster B1
Metal bindingi21Divalent metal cation; cluster B1
Metal bindingi24Divalent metal cation; cluster B1
Metal bindingi26Divalent metal cation; cluster B1
Metal bindingi29Divalent metal cation; cluster B1
Metal bindingi33Divalent metal cation; cluster A1
Metal bindingi34Divalent metal cation; cluster A1
Metal bindingi36Divalent metal cation; cluster A1
Metal bindingi37Divalent metal cation; cluster A1
Metal bindingi41Divalent metal cation; cluster A1
Metal bindingi44Divalent metal cation; cluster A1
Metal bindingi48Divalent metal cation; cluster A1
Metal bindingi50Divalent metal cation; cluster A1
Metal bindingi57Divalent metal cation; cluster A1
Metal bindingi59Divalent metal cation; cluster A1
Metal bindingi60Divalent metal cation; cluster A1

GO - Molecular functioni

GO - Biological processi

Keywordsi

LigandMetal-binding, Metal-thiolate cluster

Names & Taxonomyi

Protein namesi
Recommended name:
Metallothionein-2
Short name:
MT-2
Alternative name(s):
Metallothionein-II
Short name:
MT-II
Gene namesi
Name:Mt2
OrganismiRattus norvegicus (Rat)
Taxonomic identifieri10116 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaMyomorphaMuroideaMuridaeMurinaeRattus
Proteomesi
  • UP000002494 Componenti: Chromosome 19

Subcellular locationi

GO - Cellular componenti

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001972221 – 61Metallothionein-2Add BLAST61

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Modified residuei1N-acetylmethionine1 Publication1
Modified residuei58PhosphoserineBy similarity1

Keywords - PTMi

Acetylation, Phosphoprotein

Proteomic databases

PaxDbiP04355.
PRIDEiP04355.

Expressioni

Gene expression databases

BgeeiENSRNOG00000043098.
ExpressionAtlasiP04355. baseline.
GenevisibleiP04355. RN.

Interactioni

Protein-protein interaction databases

IntActiP04355. 1 interactor.
STRINGi10116.ENSRNOP00000062585.

Structurei

Secondary structure

161
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi9 – 11Combined sources3
Beta strandi16 – 18Combined sources3
Beta strandi35 – 37Combined sources3
Turni38 – 40Combined sources3
Turni42 – 46Combined sources5

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1MRTNMR-A31-61[»]
2MRTNMR-A1-30[»]
4MT2X-ray2.00A1-61[»]
ProteinModelPortaliP04355.
SMRiP04355.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP04355.

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

eggNOGiENOG410JFS1. Eukaryota.
ENOG41113QR. LUCA.
GeneTreeiENSGT00730000110883.
HOGENOMiHOG000236262.
HOVERGENiHBG096105.
InParanoidiP04355.
KOiK14739.
OMAiCNCAGSC.
PhylomeDBiP04355.
TreeFamiTF336054.

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.

P04355-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MDPNCSCATD GSCSCAGSCK CKQCKCTSCK KSCCSCCPVG CAKCSQGCIC
60
KEASDKCSCC A
Length:61
Mass (Da):6,145
Last modified:March 20, 1987 - v1
Checksum:iD50D1306A5ED08E9
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
M11794 Genomic DNA. Translation: AAA41640.1.
PIRiB61561. SMRT2.
RefSeqiNP_001131036.1. NM_001137564.1.
UniGeneiRn.115549.

Genome annotation databases

EnsembliENSRNOT00000067391; ENSRNOP00000062585; ENSRNOG00000043098.
GeneIDi689415.
KEGGirno:689415.
UCSCiRGD:1592345. rat.

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 nameiMT2_RAT
AccessioniPrimary (citable) accession number: P04355
Entry historyiIntegrated into UniProtKB/Swiss-Prot: March 20, 1987
Last sequence update: March 20, 1987
Last modified: July 5, 2017
This is version 150 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Direct protein sequencing, Reference proteome

Documents

  1. Metallothioneins
    Classification of metallothioneins and list of entries
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families