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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P09622: Variant p.Gly229Cys

Dihydrolipoyl dehydrogenase, mitochondrial
Gene: DLD
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Variant information Variant position: help 229 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 Glycine (G) to Cysteine (C) at position 229 (G229C, p.Gly229Cys). 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 glycine (G) to medium size and polar (C) 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 DLDD. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 229 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 509 The length of the canonical sequence.
Location on the sequence: help LKKVPEKMVVIGAGVIGVEL G SVWQRLGADVTAVEFLGHVG 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                         LKKVPEKMVVIGAGVIGVELGSVWQRLGADVTAVEFLGHVG

                              LKKVPEKMVVIGAGVIGVELGSVWQRLGADVTAVEFLGHVG

Mouse                         LKKVPEKLVVIGAGVIGVELGSVWQRLGADVTAVEFLGHVG

Rat                           LKKVPEKLVVIGAGVIGVELGSVWQRLGADVTAVEFLGHVG

Pig                           LKKVPEKMVVIGAGVIGVELGSVWQRLGADVTAVELLGHVG

Bovine                        LKKVPEKLVVIGAGVIGVELGSVWQRLGADVTAVEFLGHVG

Caenorhabditis elegans        LGQVPKKMVVIGAGVIGLELGSVWQRLGAEVTAVEFLGHVG

Slime mold                    LKSVPKKLIVIGGGVIGLELGSVWSRLGSETTVVEFTNRIA

Baker's yeast                 LKEIPKRLTIIGGGIIGLEMGSVYSRLGSKVTVVEFQPQIG

Fission yeast                 LSEVPKKMTVLGGGIIGLEMGSVWSRLGAEVTVVEFLPAVG

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 36 – 509 Dihydrolipoyl dehydrogenase, mitochondrial
Binding site 243 – 243
Helix 223 – 235



Literature citations
Novel mutations in dihydrolipoamide dehydrogenase deficiency in two cousins with borderline-normal PDH complex activity.
Cameron J.M.; Levandovskiy V.; Mackay N.; Raiman J.; Renaud D.L.; Clarke J.T.; Feigenbaum A.; Elpeleg O.; Robinson B.H.;
Am. J. Med. Genet. A 140:1542-1552(2006)
Cited for: VARIANTS DLDD THR-47; CYS-229 AND LYS-375; CATALYTIC ACTIVITY; Molecular basis of lipoamide dehydrogenase deficiency in Ashkenazi Jews.
Shaag A.; Saada A.; Berger I.; Mandel H.; Joseph A.; Feigenbaum A.; Elpeleg O.N.;
Am. J. Med. Genet. 82:177-182(1999)
Cited for: VARIANT DLDD CYS-229;
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.