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Protein

Metallothionein B

Gene

mtb

Organism
Dicentrarchus labrax (European seabass) (Morone labrax)
Status
Reviewed-Annotation score: -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 B1
Metal bindingi6Divalent metal cation; cluster B1
Metal bindingi12Divalent metal cation; cluster B1
Metal bindingi14Divalent metal cation; cluster B1
Metal bindingi18Divalent metal cation; cluster B1
Metal bindingi20Divalent metal cation; cluster B1
Metal bindingi23Divalent metal cation; cluster B1
Metal bindingi25Divalent metal cation; cluster B1
Metal bindingi28Divalent metal cation; cluster B1
Metal bindingi32Divalent metal cation; cluster A1
Metal bindingi33Divalent metal cation; cluster A1
Metal bindingi35Divalent metal cation; cluster A1
Metal bindingi36Divalent metal cation; cluster A1
Metal bindingi40Divalent metal cation; cluster A1
Metal bindingi43Divalent metal cation; cluster A1
Metal bindingi47Divalent metal cation; cluster A1
Metal bindingi49Divalent metal cation; cluster A1
Metal bindingi54Divalent metal cation; cluster A1
Metal bindingi58Divalent metal cation; cluster A1
Metal bindingi59Divalent metal cation; cluster A1

GO - Molecular functioni

Keywordsi

LigandMetal-binding, Metal-thiolate cluster

Names & Taxonomyi

Protein namesi
Recommended name:
Metallothionein B
Short name:
MT-B
Gene namesi
Name:mtb
OrganismiDicentrarchus labrax (European seabass) (Morone labrax)
Taxonomic identifieri13489 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiActinopterygiiNeopterygiiTeleosteiNeoteleosteiAcanthomorphataEupercariaMoronidaeDicentrarchus

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001972821 – 60Metallothionein BAdd BLAST60

Structurei

3D structure databases

ProteinModelPortaliQ9PTG9
SMRiQ9PTG9
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.

Q9PTG9-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MDPCDCSKSG TCNCGGSCTC TNCSCTTCKK SCCPCCPSGC TKCASGCVCK
60
GKTCDTSCCQ
Length:60
Mass (Da):5,992
Last modified:July 11, 2001 - v2
Checksum:i5962A4E971BC424B
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF199014 Genomic DNA Translation: AAF22355.2

Similar proteinsi

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF199014 Genomic DNA Translation: AAF22355.2

3D structure databases

ProteinModelPortaliQ9PTG9
SMRiQ9PTG9
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

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
ProtoNetiSearch...

Entry informationi

Entry nameiMTB_DICLA
AccessioniPrimary (citable) accession number: Q9PTG9
Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 1, 2000
Last sequence update: July 11, 2001
Last modified: December 20, 2017
This is version 63 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Metallothioneins
    Classification of metallothioneins and list of entries
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Main funding by: National Institutes of Health

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