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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P11532: Variant p.Cys3340Tyr

Dystrophin
Gene: DMD
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Variant information Variant position: help 3340 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help 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: help From Cysteine (C) to Tyrosine (Y) at position 3340 (C3340Y, p.Cys3340Tyr). 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 medium size and polar (C) to large size and aromatic (Y) 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 DMD; results in highly reduced protein levels and expression at the sarcolemma. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 3340 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 3685 The length of the canonical sequence.
Location on the sequence: help PIIGFRYRSLKHFNYDICQS C FFSGRVAKGHKMHYPMVEYC 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                         PIIGFRYRSLKHFNYDICQSCFFSGRVAKGHKMHYPMVEYC

                              PIIGFRYRSLKHFNYDICQSCFFSGRVAKGHKMHYPMVEYC

Mouse                         PIIGFRYRSLKHFNYDICQSCFFSGRVAKGHKMHYPMVEYC

Rat                           PIIGFRYRSLKHFNYDICQSCFFSGRVAKGHKMHYPMVEYC

Pig                           PIIGFRYRSLKHFNYDICQSCFFSGRVAKGHKMHYPMVEYC

Chicken                       PIIGFRYRSLKHFNYDICQSCFFSGRVAKGHKMHYPMVEYC

Caenorhabditis elegans        PIIGIRYRCLTCFNCDLCQNCFFSQRTAKSHRTNHPMQEYC
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 – 3685 Dystrophin
Zinc finger 3308 – 3364 ZZ-type; degenerate
Region 3058 – 3408 Interaction with SYNM
Binding site 3337 – 3337
Binding site 3340 – 3340



Literature citations
A cysteine 3340 substitution in the dystroglycan-binding domain of dystrophin associated with Duchenne muscular dystrophy, mental retardation and absence of the ERG b-wave.
Lenk U.; Oexle K.; Voit T.; Ancker U.; Hellner K.A.; Speer A.; Hubner C.;
Hum. Mol. Genet. 5:973-975(1996)
Cited for: VARIANT DMD TYR-3340; The ZZ domain of dystrophin in DMD: making sense of missense mutations.
Vulin A.; Wein N.; Strandjord D.M.; Johnson E.K.; Findlay A.R.; Maiti B.; Howard M.T.; Kaminoh Y.J.; Taylor L.E.; Simmons T.R.; Ray W.C.; Montanaro F.; Ervasti J.M.; Flanigan K.M.;
Hum. Mutat. 35:257-264(2014)
Cited for: CHARACTERIZATION OF VARIANTS DMD PHE-3313; HIS-3335 AND TYR-3340;
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.