Skip Header

You are using a version of Internet Explorer that may not display all features of this website. Please upgrade to a modern browser.
Contribute Send feedback
Read comments (?) or add your own

O93571 (MT_ICTPU) Reviewed, UniProtKB/Swiss-Prot

Last modified October 16, 2013. Version 58. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Metallothionein

Short name=MT
Gene names
Name:mt
OrganismIctalurus punctatus (Channel catfish) (Silurus punctatus)
Taxonomic identifier7998 [NCBI]
Taxonomic lineageEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiOstariophysiSiluriformesIctaluridaeIctalurus

Protein attributes

Sequence length60 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

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

Domain

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 similarities

Belongs to the metallothionein superfamily. Type 1 family.

Ontologies

Keywords
   LigandMetal-binding
Metal-thiolate cluster
Gene Ontology (GO)
   Molecular_functionmetal ion binding

Inferred from electronic annotation. Source: UniProtKB-KW

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 6060Metallothionein
PRO_0000197288

Regions

Region1 – 2828Beta
Region29 – 6032Alpha

Sites

Metal binding41Divalent metal cation; cluster B
Metal binding61Divalent metal cation; cluster B
Metal binding121Divalent metal cation; cluster B
Metal binding141Divalent metal cation; cluster B
Metal binding181Divalent metal cation; cluster B
Metal binding201Divalent metal cation; cluster B
Metal binding231Divalent metal cation; cluster B
Metal binding251Divalent metal cation; cluster B
Metal binding281Divalent metal cation; cluster B
Metal binding321Divalent metal cation; cluster A
Metal binding331Divalent metal cation; cluster A
Metal binding351Divalent metal cation; cluster A
Metal binding361Divalent metal cation; cluster A
Metal binding401Divalent metal cation; cluster A
Metal binding431Divalent metal cation; cluster A
Metal binding471Divalent metal cation; cluster A
Metal binding491Divalent metal cation; cluster A
Metal binding541Divalent metal cation; cluster A
Metal binding581Divalent metal cation; cluster A
Metal binding591Divalent metal cation; cluster A

Sequences

Sequence LengthMass (Da)Tools
O93571 [UniParc].

Last modified November 1, 1998. Version 1.
Checksum: 924D1834DB3DEC11

FASTA606,080
        10         20         30         40         50         60 
MDPCECSKTG TCNCGTSCKC SNCQCACCKK SCCSCCPSGC SKCASGCVCK GDTCDSKCCQ 

« Hide

References

[1]"Isolation and sequencing of a metallothionein complementary DNA clone from cadmium-treated channel catfish (Ictalurus punctatus)."
Schlenk D., El-Alfy A., Colley W.C.
Submitted (AUG-1998) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [MRNA].
Tissue: Liver.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
AF087935 mRNA. Translation: AAC36348.1.
RefSeqNP_001187006.1. NM_001200077.1.
UniGeneIpu.321.

3D structure databases

ProteinModelPortalO93571.
SMRO93571. Positions 2-29, 31-60.
ModBaseSearch...
MobiDBSearch...

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID100304478.

Family and domain databases

Gene3D4.10.10.10. 1 hit.
InterProIPR017854. Metalthion_dom.
IPR023587. Metalthion_dom_vert.
IPR003019. Metalthion_sfam_euk.
IPR000006. Metalthion_vert.
IPR018064. Metalthion_vert_metal_BS.
[Graphical view]
PANTHERPTHR23299. PTHR23299. 1 hit.
PfamPF00131. Metallothio. 1 hit.
[Graphical view]
PRINTSPR00860. MTVERTEBRATE.
SUPFAMSSF57868. SSF57868. 1 hit.
PROSITEPS00203. METALLOTHIONEIN_VRT. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameMT_ICTPU
AccessionPrimary (citable) accession number: O93571
Entry history
Integrated into UniProtKB/Swiss-Prot: December 1, 2000
Last sequence update: November 1, 1998
Last modified: October 16, 2013
This is version 58 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

Metallothioneins

Classification of metallothioneins and list of entries