P80292 (MT2E_RABIT) Reviewed, UniProtKB/Swiss-Prot

Names and origin

Protein names	Recommended name: Metallothionein-2E Short name=MT-2E Alternative name(s): Metallothionein-IIE Short name=MT-IIE
Organism	Oryctolagus cuniculus (Rabbit) [Reference proteome]
Taxonomic identifier	9986 [NCBI]
Taxonomic lineage	cellular organisms › Eukaryota › Opisthokonta › Metazoa › Eumetazoa › Bilateria › Deuterostomia › Chordata › Craniata › Vertebrata › Gnathostomata › Teleostomi › Euteleostomi › Sarcopterygii › Tetrapoda › Amniota › Mammalia › Theria › Eutheria › Euarchontoglires › Glires › Lagomorpha › Leporidae › Oryctolagus

Protein attributes

Sequence length	61 AA.
Sequence status	Complete.
Protein existence	Evidence at protein level

General annotation (Comments)

Function	Metallothioneins have a high content of cysteine residues that bind various heavy metals; these proteins are transcriptionally regulated by both heavy metals and glucocorticoids.
Subunit structure	Monomer.
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
Ligand	Cadmium Copper Metal-binding Metal-thiolate cluster Zinc
PTM	Acetylation
Technical term	Complete proteome Direct protein sequencing Reference proteome
Gene Ontology (GO)
Biological_process	cellular response to zinc ion Inferred from sequence or structural similarity. Source: UniProtKB negative regulation of growth Inferred from sequence or structural similarity. Source: UniProtKB
Cellular_component	nucleus Inferred from sequence or structural similarity. Source: UniProtKB perinuclear region of cytoplasm Inferred from sequence or structural similarity. Source: UniProtKB
Molecular_function	zinc ion binding Inferred from sequence or structural similarity. Source: UniProtKB
Complete GO annotation...

Sequence annotation (Features)

	Feature key	Position(s)	Length	Description	Graphical view	Feature identifier
Molecule processing
	Chain	1 – 61	61	Metallothionein-2E		PRO_0000197220
Regions
	Region	1 – 29	29	Beta
	Region	30 – 61	32	Alpha
Sites
	Metal binding	5	1	Divalent metal cation; cluster B
	Metal binding	7	1	Divalent metal cation; cluster B
	Metal binding	13	1	Divalent metal cation; cluster B
	Metal binding	15	1	Divalent metal cation; cluster B
	Metal binding	19	1	Divalent metal cation; cluster B
	Metal binding	21	1	Divalent metal cation; cluster B
	Metal binding	24	1	Divalent metal cation; cluster B
	Metal binding	26	1	Divalent metal cation; cluster B
	Metal binding	29	1	Divalent metal cation; cluster B
	Metal binding	33	1	Divalent metal cation; cluster A
	Metal binding	34	1	Divalent metal cation; cluster A
	Metal binding	36	1	Divalent metal cation; cluster A
	Metal binding	37	1	Divalent metal cation; cluster A
	Metal binding	41	1	Divalent metal cation; cluster A
	Metal binding	44	1	Divalent metal cation; cluster A
	Metal binding	48	1	Divalent metal cation; cluster A
	Metal binding	50	1	Divalent metal cation; cluster A
	Metal binding	57	1	Divalent metal cation; cluster A
	Metal binding	59	1	Divalent metal cation; cluster A
	Metal binding	60	1	Divalent metal cation; cluster A
Amino acid modifications
	Modified residue	1	1	N-acetylmethionine

Sequences

	Sequence		Length	Mass (Da)
	P80292 [UniParc]. Last modified February 1, 1994. Version 1. Checksum: 3A0A64AE22D57762	FASTA	61	6,199
	10 20 30 40 50 60 MDPNCSCATR DSCACASSCK CKECKCTSCK KSCCSCCPAG CTKCAQGCIC KGALDKCSCC A

References

[1]	"Primary structures of seven metallothioneins from rabbit tissue." Hunziker P.E., Kaur P., Wan M., Kaenzig A. Biochem. J. 306:265-270(1995) [PubMed] [Europe PMC] [Abstract] Cited for: PROTEIN SEQUENCE. Strain: New Zealand white. Tissue: Kidney and Liver.

Cross-references

Sequence databases
PIR	S54333.
3D structure databases
ProteinModelPortal	P80292.
SMR	P80292. Positions 1-61.
ModBase	Search...
Protocols and materials databases
StructuralBiologyKnowledgebase	Search...
Family and domain databases
Gene3D	4.10.10.10. 1 hit.
InterPro	IPR017854. Metalthion_dom. IPR023587. Metalthion_dom_vert. IPR003019. Metalthion_sfam_euk. IPR000006. Metalthion_vert. IPR018064. Metalthion_vert_metal_BS. [Graphical view]
PANTHER	PTHR23299. PTHR23299. 1 hit.
Pfam	PF00131. Metallothio. 1 hit. [Graphical view]
PRINTS	PR00860. MTVERTEBRATE.
SUPFAM	SSF57868. Metallothionein_sfam. 1 hit.
PROSITE	PS00203. METALLOTHIONEIN_VRT. 1 hit. [Graphical view]
ProtoNet	Search...

Entry information

Entry name

MT2E_RABIT

Accession

Primary (citable) accession number: P80292

Entry history

Integrated into UniProtKB/Swiss-Prot:	February 1, 1994
Last sequence update:	February 1, 1994
Last modified:	April 3, 2013
This is version 70 of the entry and version 1 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation program

Chordata Protein Annotation Program