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UniProtKB/Swiss-Prot Q15319: Variant p.Lys328Glu

POU domain, class 4, transcription factor 3
Gene: POU4F3
Variant information

Variant position:  328
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  LP/P [Disclaimer]
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:  From Lysine (K) to Glutamate (E) at position 328 (K328E, p.Lys328Glu).
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:  Change from large size and basic (K) to medium size and acidic (E)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  1
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:  In DFNA15; decreases subcellular localization in the nucleus.
Any additional useful information about the variant.

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



Sequence information

Variant position:  328
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  338
The length of the canonical sequence.

Location on the sequence:   AEKLDLKKNVVRVWFCNQRQ  K QKRMKYSAVH
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: 
The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         AEKLDLKKNVVRVWFCNQRQKQKRMKYSAVH

Mouse                         AEKLDLKKNVVRVWFCNQRQKQKRMKYSAVH

Rat                           AEKLDLKKNVVRVWFCNQRQKQKRMKYSAVH

Zebrafish                     AEKLDLKKNVVRVWFCNQRQKQKRMKYSAVH

Sequence annotation in neighborhood:  
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 – 338 POU domain, class 4, transcription factor 3
DNA binding 274 – 333 Homeobox


Literature citations

A novel missense variant in the nuclear localization signal of POU4F3 causes autosomal dominant non-syndromic hearing loss.
Lin Y.H.; Lin Y.H.; Lu Y.C.; Liu T.C.; Chen C.Y.; Hsu C.J.; Chen P.L.; Wu C.C.;
Sci. Rep. 7:7551-7551(2017)
Cited for: VARIANT DFNA15 GLU-328; CHARACTERIZATION OF VARIANT DFNA15 GLU-328; SUBCELLULAR LOCATION;

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.