UniProtKB/Swiss-Prot Q7RTS9: Variant p.Asn469Tyr

Dymeclin
Gene: DYM
Chromosomal location: 18q21.1
Variant information

Variant position:  469
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:  Disease [Disclaimer]
The variants are classified into three categories: Disease, Polymorphism and Unclassified.
  • Disease: Variants have been found in patients and disease-association is reported in literature. However, this classification is not a definitive assessment of variant pathogenicity.
  • Polymorphism: No disease-association has been reported.
  • Unclassified: Variants have been found in patients but disease-association remains unclear.

Residue change:  From Asparagine (N) to Tyrosine (Y) at position 469 (N469Y, p.Asn469Tyr).
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 large size and aromatic (Y)
The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:  -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:  In DMC; results in protein mis-localization and aggregation.
Any additional useful information about the variant.



Sequence information

Variant position:  469
The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:  669
The length of the canonical sequence.

Location on the sequence:   YNMTRTRDKYLHTNCLAALA  N MSAQFRSLHQYAAQRIISLF
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                         YNMTRTRDKYLHTNCLAALANMSAQFRSLHQYAAQRIISLF

Mouse                         YNMTRTRDKYLHTNCLAALANMSAQFRSLHQYAAQRIISLF

Rat                           YNMTRTRDKYLHTNCLAALANMSAQFRSLHQYAAQRIISLF

Chicken                       YNMTRTRDKYLHTNCLAALANMSAQFRSLHQYAAQRIISLF

Xenopus laevis                FNMTRTRDKYLHTNCLAALANMSAQFRSLHQYAAQRIISLF

Xenopus tropicalis            YNMTRTRDKYLHTNCLAALANMSAQFRSLHQYAAQRIISLF

Drosophila                    YNMLKMRDKYLHTNCLAALANMSGHFRALHPYVAQRLVSLF

Slime mold                    LNLSKLRDAHLHTNCLAILANLSSNISHIHPYVANRLVKLL

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 2 – 669 Dymeclin


Literature citations

The gene responsible for Dyggve-Melchior-Clausen syndrome encodes a novel peripheral membrane protein dynamically associated with the Golgi apparatus.
Dimitrov A.; Paupe V.; Gueudry C.; Sibarita J.-B.; Raposo G.; Vielemeyer O.; Gilbert T.; Csaba Z.; Attie-Bitach T.; Cormier-Daire V.; Gressens P.; Rustin P.; Perez F.; El Ghouzzi V.;
Hum. Mol. Genet. 18:440-453(2009)
Cited for: TISSUE SPECIFICITY; SUBCELLULAR LOCATION; MYRISTOYLATION AT GLY-2; MUTAGENESIS OF GLY-2; CHARACTERIZATION OF VARIANT SMC1 LYS-87; CHARACTERIZATION OF VARIANT DMC TYR-469;

Mental retardation and abnormal skeletal development (Dyggve-Melchior-Clausen dysplasia) due to mutations in a novel, evolutionarily conserved gene.
Cohn D.H.; Ehtesham N.; Krakow D.; Unger S.; Shanske A.; Reinker K.; Powell B.R.; Rimoin D.L.;
Am. J. Hum. Genet. 72:419-428(2003)
Cited for: VARIANT DMC TYR-469; VARIANT SMC1 LYS-87;

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.