Reviewed, UniProtKB/Swiss-Prot P04731 (MT1A_HUMAN)

Names and origin

Protein names

Recommended name:
    Metallothionein-1A
      Short name=MT-1A
Alternative name(s):
    Metallothionein-IA
      Short name=MT-IA

Gene names

Name:	MT1A
Synonyms:	MT1S

Organism

Homo sapiens (Human) [Complete proteome]

Taxonomic identifier

9606 [NCBI]

Taxonomic lineage

Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Primates › Haplorrhini › Catarrhini › Hominidae › Homo

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
Coding sequence diversity	Polymorphism
Ligand	Cadmium Copper Metal-binding Metal-thiolate cluster Zinc
PTM	Acetylation
Technical term	Complete proteome
Gene Ontology (GO)
Cellular component	cytoplasm Non-traceable author statement. Source: UniProtKB
Molecular function	cadmium ion binding Non-traceable author statement. Source: UniProtKB copper ion binding Non-traceable author statement. Source: UniProtKB zinc ion binding Non-traceable author statement. 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-1A		PRO_0000197234
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 By similarity
Natural variations
	Natural variant	27	1	T → N: dbSNP rs11640851. Ref.1 Ref.4		VAR_060727
	Natural variant	51	1	K → R: dbSNP rs8052394.		VAR_059436

Sequences

	Sequence		Length	Mass (Da)
	P04731-1 [UniParc]. Last modified November 24, 2009. Version 2. Checksum: 8FBA7C54EE8B6A13	FASTA	61	6,120
	10 20 30 40 50 60 MDPNCSCATG GSCTCTGSCK CKECKCTSCK KSCCSCCPMS CAKCAQGCIC KGASEKCSCC A

References

	« Hide 'large scale' referencesShow 'large scale' references »
[1]	"Structural and functional analysis of the human metallothionein-IA gene: differential induction by metal ions and glucocorticoids." Richards R.I., Heguy A., Karin M. Cell 37:263-272(1984) [PubMed: 6327055] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], VARIANT ASN-27.
[2]	"Cloning of a novel member of the MT gene family - MT1S." Wang J., Zheng L., Yu L. Submitted (MAR-2001) to the EMBL/GenBank/DDBJ databases Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
[3]	"The sequence and analysis of duplication-rich human chromosome 16." Martin J., Han C., Gordon L.A., Terry A., Prabhakar S., She X., Xie G., Hellsten U., Chan Y.M., Altherr M., Couronne O., Aerts A., Bajorek E., Black S., Blumer H., Branscomb E., Brown N.C., Bruno W.J. , Buckingham J.M., Callen D.F., Campbell C.S., Campbell M.L., Campbell E.W., Caoile C., Challacombe J.F., Chasteen L.A., Chertkov O., Chi H.C., Christensen M., Clark L.M., Cohn J.D., Denys M., Detter J.C., Dickson M., Dimitrijevic-Bussod M., Escobar J., Fawcett J.J., Flowers D., Fotopulos D., Glavina T., Gomez M., Gonzales E., Goodstein D., Goodwin L.A., Grady D.L., Grigoriev I., Groza M., Hammon N., Hawkins T., Haydu L., Hildebrand C.E., Huang W., Israni S., Jett J., Jewett P.B., Kadner K., Kimball H., Kobayashi A., Krawczyk M.-C., Leyba T., Longmire J.L., Lopez F., Lou Y., Lowry S., Ludeman T., Manohar C.F., Mark G.A., McMurray K.L., Meincke L.J., Morgan J., Moyzis R.K., Mundt M.O., Munk A.C., Nandkeshwar R.D., Pitluck S., Pollard M., Predki P., Parson-Quintana B., Ramirez L., Rash S., Retterer J., Ricke D.O., Robinson D.L., Rodriguez A., Salamov A., Saunders E.H., Scott D., Shough T., Stallings R.L., Stalvey M., Sutherland R.D., Tapia R., Tesmer J.G., Thayer N., Thompson L.S., Tice H., Torney D.C., Tran-Gyamfi M., Tsai M., Ulanovsky L.E., Ustaszewska A., Vo N., White P.S., Williams A.L., Wills P.L., Wu J.-R., Wu K., Yang J., DeJong P., Bruce D., Doggett N.A., Deaven L., Schmutz J., Grimwood J., Richardson P., Rokhsar D.S., Eichler E.E., Gilna P., Lucas S.M., Myers R.M., Rubin E.M., Pennacchio L.A. Nature 432:988-994(2004) [PubMed: 15616553] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
[4]	"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)." The MGC Project Team Genome Res. 14:2121-2127(2004) [PubMed: 15489334] [Abstract] Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA], VARIANT ASN-27. Tissue: Liver.
+	Additional computationally mapped references.

Cross-references

Sequence databases
EMBL GenBank DDBJ	K01383 Genomic DNA. Translation: AAA59586.1. AY028617 mRNA. Translation: AAK26162.1. AF348995 mRNA. Translation: AAO32955.1. AC026461 Genomic DNA. No translation available. BC029475 mRNA. Translation: AAH29475.1.
IPI	IPI00025460.
PIR	SMHU1A. A24502.
RefSeq	NP_005937.2.
UniGene	Hs.655199
3D structure databases
SMR	P04731. Positions 1-61.
ModBase	Search...
Protein-protein interaction databases
STRING	P04731.
PTM databases
PhosphoSite	P04731.
Genome annotation databases
Ensembl	ENST00000290705; ENSP00000290705; ENSG00000205362; Homo sapiens. [Genome view] ENST00000443255; ENSP00000401456; ENSG00000205362; Homo sapiens. [Genome view]
GeneID	4489.
KEGG	hsa:4489.
Organism-specific databases
CTD	4489.
GeneCards	GC16P055230.
H-InvDB	HIX0021628.
HGNC	HGNC:7393. MT1A.
HPA	CAB002161. CAB013056.
MIM	156350. gene.
PharmGKB	PA142672108.
GenAtlas	Search...
Phylogenomic databases
eggNOG	prNOG21851.
HOVERGEN	P04731.
InParanoid	P04731.
Gene expression databases
CleanEx	HS_MT1A.
Genevestigator	P04731.
Family and domain databases
InterPro	IPR017854. Metallothionein_sfam. IPR003019. Metallothionein_sfam_euk. IPR000006. Metallothionein_vert. IPR018064. Metallothionein_vert_metal_BS. [Graphical view]
Gene3D	G3DSA:4.10.10.10. Metallothionein_vert. 1 hit.
PANTHER	PTHR23299. Metallothionein_vert. 1 hit.
Pfam	PF00131. Metallothio. 1 hit. [Graphical view]
PRINTS	PR00860. MTVERTEBRATE.
PROSITE	PS00203. METALLOTHIONEIN_VRT. 1 hit. [Graphical view]
ProtoNet	Search...
Other Resources
SOURCE	Search...

Entry information

Entry name

MT1A_HUMAN

Accession

Primary (citable) accession number: P04731
Secondary accession number(s): Q86YX5

Entry history

Integrated into UniProtKB/Swiss-Prot:	August 13, 1987
Last sequence update:	November 24, 2009
Last modified:	January 19, 2010
This is version 95 of the entry and version 2 of the sequence. [Complete history]

Entry status

Reviewed (UniProtKB/Swiss-Prot)

Annotation project

HPI (Human Proteome Initiative)

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care.