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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P49748: Variant p.Val283Ala

Very long-chain specific acyl-CoA dehydrogenase, mitochondrial
Gene: ACADVL
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Variant information Variant position: help 283 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 Valine (V) to Alanine (A) at position 283 (V283A, p.Val283Ala). 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 hydrophobic (V) to small size and hydrophobic (A) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help 0 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 ACADVLD; pathogenic. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 283 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 655 The length of the canonical sequence.
Location on the sequence: help AKTPVTDPATGAVKEKITAF V VERGFGGITHGPPEKKMGIK 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                         AKTPVTDPATGAVKEKITAFVVERGFGGITHGPPEKKMGIK

Mouse                         AKTPIKDAATGAVKEKITAFVVERSFGGVTHGLPEKKMGIK

Rat                           AKTPIKDAATGAVKEKITAFVVERSFGGVTHGLPEKKMGIK

Bovine                        AKTPVTDTATGAVKEKITAFVVERSFGGVTHGPPEKKMGIK
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 41 – 655 Very long-chain specific acyl-CoA dehydrogenase, mitochondrial
Region 41 – 482 Catalytic
Modified residue 276 – 276 N6-acetyllysine; alternate
Modified residue 276 – 276 N6-succinyllysine; alternate
Modified residue 278 – 278 N6-acetyllysine; alternate
Modified residue 278 – 278 N6-succinyllysine; alternate
Modified residue 298 – 298 N6-acetyllysine
Beta strand 275 – 285



Literature citations
Cloning and characterization of human very-long-chain acyl-CoA dehydrogenase cDNA, chromosomal assignment of the gene and identification in four patients of nine different mutations within the VLCAD gene.
Andresen B.S.; Bross P.; Vianey-Saban C.; Divry P.; Zabot M.-T.; Roe C.R.; Nada M.A.; Byskov A.; Kruse T.A.; Neve S.; Kristiansen K.; Knudsen I.; Corydon M.J.; Gregersen N.;
Hum. Mol. Genet. 5:461-472(1996)
Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 1); TISSUE SPECIFICITY; VARIANTS ACADVLD MET-260; ASP-281; ALA-283; ALA-317; CYS-366; GLU-381 DEL; ASP-441 AND ILE-602; Clear correlation of genotype with disease phenotype in very-long-chain acyl-CoA dehydrogenase deficiency.
Andresen B.S.; Olpin S.; Poorthuis B.J.H.M.; Scholte H.R.; Vianey-Saban C.; Wanders R.; Ijlst L.; Morris A.; Pourfarzam M.; Bartlett K.; Baumgartner E.R.; de Klerk J.B.C.; Schroeder L.D.; Corydon T.J.; Lund H.; Winter V.; Bross P.; Bolund L.; Gregersen N.;
Am. J. Hum. Genet. 64:479-494(1999)
Cited for: VARIANTS ACADVLD ASP-43; ASN-158; ARG-159; MET-174; SER-185; LYS-218; ARG-243; THR-247; MET-260; LYS-278 DEL; ASP-281; ALA-283; ASP-290; GLU-294; ASN-299; ALA-317; VAL-352; CYS-366; HIS-366; GLU-381 DEL; HIS-405; ASP-441; HIS-450; GLN-453; ASN-454; HIS-456; TRP-459; GLU-463; GLN-469; TRP-469; PRO-502; ILE-602 AND TRP-613; Molecular heterogeneity in very-long-chain acyl-CoA dehydrogenase deficiency causing pediatric cardiomyopathy and sudden death.
Mathur A.; Sims H.F.; Gopalakrishnan D.; Gibson B.; Rinaldo P.; Vockley J.; Hug G.; Strauss A.W.;
Circulation 99:1337-1343(1999)
Cited for: VARIANTS ACADVLD GLU-130 DEL; PRO-213; GLU-247; MET-260; LYS-278 DEL; ALA-283; ASP-441; LEU-458; PRO-490; LYS-534; TRP-613 AND GLN-615;
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.