ID MT_PSEAM Reviewed; 60 AA.
AC P55945; Q6LBT7;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 23-NOV-2004, sequence version 2.
DT 27-MAR-2024, entry version 81.
DE RecName: Full=Metallothionein;
DE Short=MT;
GN Name=mt;
OS Pseudopleuronectes americanus (Winter flounder) (Pleuronectes americanus).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi;
OC Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata;
OC Carangaria; Pleuronectiformes; Pleuronectoidei; Pleuronectidae;
OC Pseudopleuronectes.
OX NCBI_TaxID=8265;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA], PROTEIN SEQUENCE OF 1-25, AND ACETYLATION AT
RP MET-1.
RC TISSUE=Liver;
RA Chan K.-M., Davidson W.S., Hew C.-L., Fletcher G.L.;
RT "Molecular cloning of metallothionein cDNA and analysis of metallothionein
RT gene expression in winter flounder tissues.";
RL Can. J. Zool. 67:2520-2527(1989).
CC -!- FUNCTION: Metallothioneins have a high content of cysteine residues
CC that bind various heavy metals. {ECO:0000250}.
CC -!- DOMAIN: Class I metallothioneins contain 2 metal-binding domains: four
CC divalent ions are chelated within cluster A of the alpha domain and are
CC coordinated via cysteinyl thiolate bridges to 11 cysteine ligands.
CC Cluster B, the corresponding region within the beta domain, can ligate
CC three divalent ions to 9 cysteines.
CC -!- SIMILARITY: Belongs to the metallothionein superfamily. Type 1 family.
CC {ECO:0000305}.
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DR EMBL; X13594; CAA31930.1; -; mRNA.
DR AlphaFoldDB; P55945; -.
DR SMR; P55945; -.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR Gene3D; 4.10.10.10; Metallothionein Isoform II; 1.
DR InterPro; IPR017854; Metalthion_dom_sf.
DR InterPro; IPR023587; Metalthion_dom_sf_vert.
DR InterPro; IPR000006; Metalthion_vert.
DR InterPro; IPR018064; Metalthion_vert_metal_BS.
DR PANTHER; PTHR23299; METALLOTHIONEIN; 1.
DR PANTHER; PTHR23299:SF18; METALLOTHIONEIN-3; 1.
DR Pfam; PF00131; Metallothio; 1.
DR PRINTS; PR00860; MTVERTEBRATE.
DR SUPFAM; SSF57868; Metallothionein; 1.
DR PROSITE; PS00203; METALLOTHIONEIN_VRT; 1.
PE 1: Evidence at protein level;
KW Acetylation; Copper; Direct protein sequencing; Metal-binding;
KW Metal-thiolate cluster.
FT CHAIN 1..60
FT /note="Metallothionein"
FT /id="PRO_0000197310"
FT REGION 1..28
FT /note="Beta"
FT REGION 29..60
FT /note="Alpha"
FT BINDING 4
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 6
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 6
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 12
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 14
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 14
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="3"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 18
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="3"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 20
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 23
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="1"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 23
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="3"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 25
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="2"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 28
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="3"
FT /ligand_note="in cluster B"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 32
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="4"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 33
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="4"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 33
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="5"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 35
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="5"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 36
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="5"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 36
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="6"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 40
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="6"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 43
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="4"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 43
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="6"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 47
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="4"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 49
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="5"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 49
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="7"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 54
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="7"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P62339"
FT BINDING 58
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="7"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 59
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="6"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT BINDING 59
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_label="7"
FT /ligand_note="in cluster A"
FT /evidence="ECO:0000250|UniProtKB:P02795"
FT MOD_RES 1
FT /note="N-acetylmethionine"
FT /evidence="ECO:0000269|Ref.1"
SQ SEQUENCE 60 AA; 6030 MW; 88FBA6EE5C7C4717 CRC64;
MDPCECSKTG TCNCGGSCTC KNCSCTTCTK SCCPCCPSGC PKCASGCVCK GKTCDTTCCQ
//
