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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P11310: Variant p.Ile78Thr

Medium-chain specific acyl-CoA dehydrogenase, mitochondrial
Gene: ACADM
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Variant information Variant position: help 78 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 Isoleucine (I) to Threonine (T) at position 78 (I78T, p.Ile78Thr). 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 (I) to medium size and polar (T) The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: help -1 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 ACADMD. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 78 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 421 The length of the canonical sequence.
Location on the sequence: help EEIIPVAAEYDKTGEYPVPL I RRAWELGLMNTHIPENCGGL 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                         EEIIPVAAEYDKTGEYPVPLIRRAWELGLMNTHIPENCGGL

Chimpanzee                    EEIIPVAAEYDKTGEYPVPLIRRAWELGLMNTHIPENCGGL

Mouse                         EEIIPVAPEYDKSGEYPFPLIKRAWELGLINAHIPESCGGL

Rat                           EEIIPVAPDYDKSGEYPFPLIKRAWELGLINTHIPESCGGL

Pig                           EEIIPVAAEYDRTGEYPVPLLKRAWELGLMNTHIPESFGGL

Bovine                        EEIIPLAAEYDKTGEYPVPLIKRAWELGLMNTHIPESCGGL

Caenorhabditis elegans        DVLVPNAAKFDESGEFPWEIVRQAHSLGLMNPQIPEKYGGP

Drosophila                    EEIIPVAAQYDKSGEYPWPIIKKAWELGLMNNHIPADIGGL
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 26 – 421 Medium-chain specific acyl-CoA dehydrogenase, mitochondrial
Modified residue 69 – 69 N6-acetyllysine; alternate
Modified residue 69 – 69 N6-succinyllysine; alternate
Mutagenesis 86 – 86 L -> M. Strongly reduced rate of electron transfer to ETF.
Mutagenesis 98 – 98 L -> W. Strongly reduced rate of electron transfer to ETF.
Helix 75 – 83



Literature citations
Medium-chain acyl-CoA dehydrogenase (MCAD) mutations identified by MS/MS-based prospective screening of newborns differ from those observed in patients with clinical symptoms: identification and characterization of a new, prevalent mutation that results in mild MCAD deficiency.
Andresen B.S.; Dobrowolski S.F.; O'Reilly L.; Muenzer J.; McCandless S.E.; Frazier D.M.; Udvari S.; Bross P.; Knudsen I.; Banas R.; Chace D.H.; Engel P.C.; Naylor E.W.; Gregersen N.;
Am. J. Hum. Genet. 68:1408-1418(2001)
Cited for: VARIANTS ACADMD HIS-67; THR-78; ILE-121 AND ARG-310;
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.