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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P35670: Variant p.Tyr44Asn

Copper-transporting ATPase 2
Gene: ATP7B
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Variant information Variant position: help 44 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help US 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 Tyrosine (Y) to Asparagine (N) at position 44 (Y44N, p.Tyr44Asn). 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 (Y) to medium size and polar (N) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -2 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

Variant description: help In WD; uncertain significance. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 44 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 1465 The length of the canonical sequence.
Location on the sequence: help LPTRAWEPAMKKSFAFDNVG Y EGGLDGLGPSSQVATSTVRI 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                         LP-------------------------TRAWEPAMKKSFAFDNVGYEGGLDGLGPSSQVATSTVRI

Mouse                         LP-------------------------GRPWEQSMKQSFAF

Rat                           LP-------------------------TRPWGQSMKQSFAF

Sheep                         CPPPSEEGEFSQKVLNGSEEISSKQILSKLFQPAMKQSFAF

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 – 1465 Copper-transporting ATPase 2
Topological domain 1 – 653 Cytoplasmic
Mutagenesis 32 – 32 Missing. Does not affect copper-induced relocalization.
Mutagenesis 37 – 37 F -> A. Altered copper-induced relocalization.
Mutagenesis 39 – 39 F -> WA. Altered copper-induced relocalization.
Mutagenesis 39 – 39 F -> Y. Does not affect copper-induced relocalization.
Mutagenesis 40 – 40 D -> A. Altered copper-induced relocalization.
Mutagenesis 41 – 41 N -> A. Altered copper-induced relocalization.
Mutagenesis 42 – 42 V -> A. Altered copper-induced relocalization.
Mutagenesis 42 – 42 V -> I. Does not affect copper-induced relocalization.
Mutagenesis 43 – 43 G -> A. Altered copper-induced relocalization.
Mutagenesis 44 – 44 Y -> F. Does not affect copper-induced relocalization.
Mutagenesis 44 – 44 Y -> WA. Altered copper-induced relocalization.
Mutagenesis 45 – 45 E -> A. Altered copper-induced relocalization.



Literature citations
Mutational analysis of ATP7B in north Chinese patients with Wilson disease.
Li K.; Zhang W.M.; Lin S.; Wen L.; Wang Z.F.; Xie D.; Wei M.; Qiu Z.Q.; Dai Y.; Lin M.C.; Kung H.F.; Yao F.X.;
J. Hum. Genet. 58:67-72(2013)
Cited for: VARIANTS WD ASN-44; PHE-157; GLY-606; HIS-732; PRO-732; GLY-756; GLN-778; LEU-778; PHE-795; PRO-874; VAL-874; MET-890; GLY-919; ARG-921; ASP-943; TYR-975; TYR-980; PRO-987; LEU-992; CYS-1151; ALA-1178; GLU-1266; SER-1270 AND LEU-1273; VARIANT VAL-929;
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.