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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P47944: Variant p.Trp31Arg

Metallothionein-4
Gene: MT4
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Variant information Variant position: help 31 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help LB/B The variants are classified into three categories: LP/P, LB/B and US.
  • LP/P: likely pathogenic or pathogenic.
  • LB/B: likely benign or benign.
  • US: uncertain significance

Residue change: help From Tryptophan (W) to Arginine (R) at position 31 (W31R, p.Trp31Arg). Indicates the amino acid change of the variant. The one-letter and three-letter codes for amino acids used in UniProtKB/Swiss-Prot are those adopted by the commission on Biochemical Nomenclature of the IUPAC-IUB.
Physico-chemical properties: help Change from large size and aromatic (W) to large size and basic (R) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -3 The score within a Blosum matrix for the corresponding wild-type to variant amino acid change. The log-odds score measures the logarithm for the ratio of the likelihood of two amino acids appearing by chance. The Blosum62 substitution matrix is used. This substitution matrix contains scores for all possible exchanges of one amino acid with another:
  • Lowest score: -4 (low probability of substitution).
  • Highest score: 11 (high probability of substitution).
More information can be found on the following page

Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 31 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 62 The length of the canonical sequence.
Location on the sequence: help GGICMCGDNCKCTTCNCKTY W KSCCPCCPPGCAKCARGCIC The residue change on the sequence. Unless the variant is located at the beginning or at the end of the protein sequence, both residues upstream (20) and downstream (20) of the variant will be shown.
Residue conservation: help The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human                         GGICMCGDNCKCTTCNCKTYWKSCCPCCPPGCAKCARGCIC

                              GGICICGDNCKCTTCNCKTCRKSCCPCCPPGCAKCAQGCIC

Mouse                         GGICICGDNCKCTTCSCKTCRKSCCPCCPPGCAKCARGCIC

Drosophila                    -----CGTNCQCSATKCG---DNC--ACSQQCQ-----CSC

Sequence annotation in neighborhood: help The regions or sites of interest surrounding the variant. In general the features listed are posttranslational modifications, binding sites, enzyme active sites, local secondary structure or other characteristics reported in the cited references. The "Sequence annotation in neighborhood" lines have a fixed format:
  • Type: the type of sequence feature.
  • Positions: endpoints of the sequence feature.
  • Description: contains additional information about the feature.
TypePositionsDescription
Chain 1 – 62 Metallothionein-4
Binding site 14 – 14
Binding site 16 – 16
Binding site 16 – 16
Binding site 20 – 20
Binding site 22 – 22
Binding site 25 – 25
Binding site 25 – 25
Binding site 27 – 27
Binding site 34 – 34
Binding site 35 – 35
Binding site 35 – 35
Binding site 37 – 37
Binding site 38 – 38
Binding site 38 – 38
Binding site 42 – 42
Binding site 45 – 45
Binding site 45 – 45
Binding site 49 – 49
Binding site 51 – 51
Binding site 51 – 51



Literature citations
Induction of a new metallothionein isoform (MT-IV) occurs during differentiation of stratified squamous epithelia.
Quaife C.J.; Findley S.D.; Erickson J.C.; Froelick G.J.; Kelly E.J.; Zambrowicz B.P.; Palmiter R.D.;
Biochemistry 33:7250-7259(1994)
Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA]; VARIANTS CYS-30 AND ARG-31; 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)
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA]; VARIANTS CYS-30 AND ARG-31;
Disclaimer: Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. They are not in any way intended to be used as a substitute for professional medical advice, diagnostic, treatment or care.