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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P41250: Variant p.Asp200Tyr

Glycine--tRNA ligase
Gene: GARS1
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Variant information Variant position: help 200 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 Aspartate (D) to Tyrosine (Y) at position 200 (D200Y, p.Asp200Tyr). 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 acidic (D) to large size and aromatic (Y) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -3 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 CMT2D. Any additional useful information about the variant.


Sequence information Variant position: help 200 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 739 The length of the canonical sequence.
Location on the sequence: help CTMLTPEPVLKTSGHVDKFA D FMVKDVKNGECFRADHLLKA 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                         CTMLTPEPVLKTSGHVDKFADFMVKDVKNGECFRADHLLKA

Mouse                         CTMLTPEPVLKTSGHVDKFADFMVKDVKNGECFRADHLLKA

Rat                           CTMLTPEPVLKTSGHVDKFADFMVKDVKNGECFRADHLLKA

Caenorhabditis elegans        CTSLTPEPVLKASGHVDRFADWMVKDMKNGECFRADHLIKN

Drosophila                    CSILTPEPVLKASGHVERFADLMVKDVKTGECFRLDHLIKQ
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 37 – 739 Glycine--tRNA ligase
Modified residue 204 – 204 N6-acetyllysine
Mutagenesis 211 – 211 C -> R. Displays 62% of wild-type catalytic activity. Displays 20% of wild-type catalytic activity; when associated with G-125.
Beta strand 199 – 208



Literature citations
Two novel de novo gars mutations cause early-onset axonal Charcot-Marie-tooth disease.
Liao Y.C.; Liu Y.T.; Tsai P.C.; Chang C.C.; Huang Y.H.; Soong B.W.; Lee Y.C.;
PLoS ONE 10:E0133423-E0133423(2015)
Cited for: VARIANTS CMT2D TYR-200 AND ARG-292;
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.