UniProtKB/Swiss-Prot O75072: Variant p.Asn446Asp

Ribitol-5-phosphate transferase FKTN
Gene: FKTN
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Variant information Variant position:

446 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant:

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:

From Asparagine (N) to Aspartate (D) at position 446 (N446D, p.Asn446Asp). 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 medium size and polar (N) to medium size and acidic (D) 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
Other resources:

Links to websites of interest for the variant.

Variant rs41313301 [ dbSNP | Ensembl ]

Sequence information Variant position:

446 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length:

461 The length of the canonical sequence.
Location on the sequence:

TWKIPVKTWDWKRSPPNVQP N GIWPISEWDEVIQLY 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                         TWKIPVKTWDWKRSPPNVQPNGIWPISEWDEVIQLY

Mouse                         TWKIPIKTWDWKSSPPNVQPNGIWPISEWDEVIQLY

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.

Type	Positions	Description
Chain	1 – 461	Ribitol-5-phosphate transferase FKTN
Topological domain	29 – 461	Lumenal
Alternative sequence	426 – 461	TWKIPVKTWDWKRSPPNVQPNGIWPISEWDEVIQLY -> NQQGA. In isoform 2.

Literature citations
A homozygous nonsense mutation in the fukutin gene causes a Walker-Warburg syndrome phenotype.
Beltran-Valero de Bernabe D.; van Bokhoven H.; van Beusekom E.; Van den Akker W.; Kant S.; Dobyns W.B.; Cormand B.; Currier S.; Hamel B.C.J.; Talim B.; Topaloglu H.; Brunner H.G.;
J. Med. Genet. 40:845-848(2003)
Cited for: INVOLVEMENT IN MDDGB4; VARIANT ASP-446;

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.