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UniProtKB/Swiss-Prot Q13510 : Variant p.Asp124Glu
Acid ceramidase
Gene: ASAH1
Variant information
Variant position: 124 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: LB/BThe 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: From Aspartate (D) to Glutamate (E) at position 124 (D124E, p.Asp124Glu).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: Similar physico-chemical property. Both residues are medium size and acidic.The physico-chemical property of the reference and variant residues and the change implicated.
BLOSUM score: 2The 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
Other resources: Links to websites of interest for the variant.
Sequence information
Variant position: 124 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: 395 The length of the canonical sequence.
Location on the sequence:
LLGNFPGPFEEEMKGIAAVT
D IPLGEIISFNIFYELFTICT
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: The multiple alignment of the region surrounding the variant against various orthologous sequences.
Human LLGNFPGPFEEEMKGIAAVTD IPLGEIISFNIFYELFTICT
Chimpanzee LLGNFPGPFEEEMKGIAAVTD IPLGEIISFNIFYELFTICT
Mouse MIGSLPDPFGEEMRGIADVTG IPLGEIISFNIFYELFTMCT
Rat LIGSIPGPFGEEMRGIADVTG IPLGEIISFNIFYELFTMCT
Bovine LLGNFPGPFEEEMKGIAAVTE IPLGEIILFNIFYEFFTICT
Caenorhabditis elegans LAPKLAQPYRDEIFSIANATG IPLGQITMYNIFYEIFTVCT
Sequence annotation in neighborhood: 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.
Type Positions Description
Chain
22 – 142
Acid ceramidase subunit alpha
Active site
143 – 143
Nucleophile
Disulfide bond
31 – 340
Interchain (between alpha and beta subunits)
Mutagenesis
141 – 141
T -> A. Decreased rate of autocatalytic processing.
Mutagenesis
143 – 143
C -> A. Loss of autocatalytic processing. Loss of ceramidase activity.
Literature citations
No reference for the current variant in UniProtKB/Swiss-Prot.
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.