Expasy logo

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P31327: Variant p.Leu958Pro

Carbamoyl-phosphate synthase [ammonia], mitochondrial
Gene: CPS1
Feedback?
Variant information Variant position: help 958 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 Leucine (L) to Proline (P) at position 958 (L958P, p.Leu958Pro). 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 Similar physico-chemical property. Both residues are medium size and hydrophobic. 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 CPS1D; significant decrease in protein yield and enzyme activity. Any additional useful information about the variant.


Sequence information Variant position: help 958 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 1500 The length of the canonical sequence.
Location on the sequence: help HPWVKQIDTLAAEYPSVTNY L YVTYNGQEHDVNFDDHGMMV 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                         HPWVKQIDTLAAEYPSVTNYLYVTYNGQEHDVNFDDHGMMV

Mouse                         HPWVKQIDTLAAEYPSVTNYLYVTYNGQEHDIKFDEHGIMV

Rat                           HPWVKQIDTLAAEYPSVTNYLYVTYNGQEHDIKFDEHGIMV
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 39 – 1500 Carbamoyl-phosphate synthase [ammonia], mitochondrial
Beta strand 957 – 963



Literature citations
The frequent observation of evidence for nonsense-mediated decay in RNA from patients with carbamyl phosphate synthetase I deficiency.
Eeds A.M.; Hall L.D.; Yadav M.; Willis A.; Summar S.; Putnam A.; Barr F.; Summar M.L.;
Mol. Genet. Metab. 89:80-86(2006)
Cited for: VARIANTS CPS1D GLU-301; CYS-389; ARG-390; THR-589; SER-640; LYS-716; LEU-805; VAL-911; PRO-958; SER-982; PHE-998; LEU-1089; PRO-1203; ASN-1205; PRO-1331; THR-1378; LEU-1411 AND ALA-1443; Understanding carbamoyl phosphate synthetase (CPS1) deficiency by using the recombinantly purified human enzyme: effects of CPS1 mutations that concentrate in a central domain of unknown function.
Diez-Fernandez C.; Hu L.; Cervera J.; Haeberle J.; Rubio V.;
Mol. Genet. Metab. 112:123-132(2014)
Cited for: VARIANTS CPS1D ARG-401; ARG-632; SER-843; CYS-850; HIS-850; PRO-871; VAL-911; GLU-911; LEU-913; HIS-914; GLY-914; PRO-918; THR-932; ASN-937; THR-949; PRO-958; CYS-959; CYS-962; ASP-964; ASP-1194 AND ARG-1462; VARIANT GLU-875; CHARACTERIZATION OF VARIANTS CPS1D SER-843; CYS-850; HIS-850; PRO-871; VAL-911; GLU-911; LEU-913; HIS-914; GLY-914; PRO-918; THR-932; ASN-937; THR-949; PRO-958; CYS-959; CYS-962 AND ASP-964; CATALYTIC ACTIVITY; CHARACTERIZATION OF VARIANT GLU-875;
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.