MT21_MYTED
ID MT21_MYTED Reviewed; 71 AA.
AC P80251; P80257;
DT 01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1994, sequence version 1.
DT 03-AUG-2022, entry version 61.
DE RecName: Full=Metallothionein 20-I isoforms A and B;
DE AltName: Full=MT-20-IA and MT-20-IB;
OS Mytilus edulis (Blue mussel).
OC Eukaryota; Metazoa; Spiralia; Lophotrochozoa; Mollusca; Bivalvia;
OC Autobranchia; Pteriomorphia; Mytilida; Mytiloidea; Mytilidae; Mytilinae;
OC Mytilus.
OX NCBI_TaxID=6550;
RN [1]
RP PROTEIN SEQUENCE.
RX PubMed=8243463; DOI=10.1111/j.1432-1033.1993.tb18364.x;
RA Mackay E.A., Overnell J., Dunbar B., Davidson I., Hunziker P.E.,
RA Kaegi J.H.R., Fothergill J.E.;
RT "Complete amino acid sequences of five dimeric and four monomeric forms of
RT metallothionein from the edible mussel Mytilus edulis.";
RL Eur. J. Biochem. 218:183-194(1993).
CC -!- FUNCTION: The metallothioneins are involved in the cellular
CC sequestration of toxic metal ions.
CC -!- SUBUNIT: Homodimer.
CC -!- INDUCTION: By cadmium.
CC -!- SIMILARITY: Belongs to the metallothionein superfamily. Type 2 family.
CC {ECO:0000305}.
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DR PIR; S39420; S39420.
DR PIR; S47576; S47576.
DR AlphaFoldDB; P80251; -.
DR SMR; P80251; -.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR InterPro; IPR001008; Metalthion_mollusc.
DR PRINTS; PR00875; MTMOLLUSC.
PE 1: Evidence at protein level;
KW Cadmium; Direct protein sequencing; Metal-binding; Metal-thiolate cluster.
FT CHAIN 1..71
FT /note="Metallothionein 20-I isoforms A and B"
FT /id="PRO_0000197329"
FT BINDING 14
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 18
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 18
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 23
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 25
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="3"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 29
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="3"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 31
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 31
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="3"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 35
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="1"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 37
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 40
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="2"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 40
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="3"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 44
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="4"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 46
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="5"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 50
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="5"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 52
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="5"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 52
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="6"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 56
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="4"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 56
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="5"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 62
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="4"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 64
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="6"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 68
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="6"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 70
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="4"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT BINDING 70
FT /ligand="Cd(2+)"
FT /ligand_id="ChEBI:CHEBI:48775"
FT /ligand_label="6"
FT /evidence="ECO:0000250|UniProtKB:P33187"
FT VARIANT 66
FT /note="S -> A (in MT-20-IB)"
SQ SEQUENCE 71 AA; 6944 MW; 4FD275FE34E81654 CRC64;
PGPCNCIETN VCICGTGCSG KCCRCGDACK CASGCGCSGC KVVCKCSGTC KCGCDCTGPT
NCKCESGCSC K
