ID   MT_SCYTO                Reviewed;          68 AA.
AC   Q6J1T3;
DT   23-NOV-2004, integrated into UniProtKB/Swiss-Prot.
DT   05-JUL-2004, sequence version 1.
DT   27-MAR-2024, entry version 52.
DE   RecName: Full=Metallothionein;
DE            Short=MT;
GN   Name=mt;
OS   Scyliorhinus torazame (Cloudy catshark).
OC   Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Chondrichthyes;
OC   Elasmobranchii; Galeomorphii; Galeoidea; Carcharhiniformes; Scyliorhinidae;
OC   Scyliorhinus.
OX   NCBI_TaxID=75743;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RA   Nam Y.K., Kim D.S., Kim S.K., Kim K.H.;
RT   "Characterization of metallothionein cDNA and transcriptional response to
RT   heavy metal exposures in a shark species, Scyliorhinus torazame.";
RL   Submitted (APR-2004) to the EMBL/GenBank/DDBJ databases.
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; AY605090; AAT35554.1; -; mRNA.
DR   AlphaFoldDB; Q6J1T3; -.
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   PANTHER; PTHR23299; METALLOTHIONEIN; 1.
DR   PANTHER; PTHR23299:SF63; METALLOTHIONEIN 1H-LIKE PROTEIN 1-RELATED; 1.
DR   Pfam; PF00131; Metallothio; 1.
DR   SUPFAM; SSF57868; Metallothionein; 1.
PE   3: Inferred from homology;
KW   Metal-binding; Metal-thiolate cluster.
FT   CHAIN           1..68
FT                   /note="Metallothionein"
FT                   /id="PRO_0000197319"
FT   BINDING         7
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         9
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         9
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         16
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         16
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="3"
FT                   /ligand_note="in cluster B"
FT                   /evidence="ECO:0000250|UniProtKB:P02795"
FT   BINDING         22
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         25
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         25
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         27
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         35
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         39
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         40
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         40
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         42
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         43
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         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="6"
FT                   /ligand_note="in cluster A"
FT                   /evidence="ECO:0000250|UniProtKB:P02795"
FT   BINDING         50
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         50
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         54
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         56
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         56
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         64
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         66
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         67
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         67
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"
SQ   SEQUENCE   68 AA;  6957 MW;  048157EF8400A6A9 CRC64;
     MSDTKPCVCL DGSCSCENTC RCSDCRCPTS KAGRCQKSCC SCCPAGCTNC ANGCVCKGKA
     SDKCSCCS
//