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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P00966: Variant p.Ser79Pro

Argininosuccinate synthase
Gene: ASS1
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Variant information Variant position: help 79 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 Serine (S) to Proline (P) at position 79 (S79P, p.Ser79Pro). 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 small size and polar (S) to medium size and hydrophobic (P) 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 CTLN1. Any additional useful information about the variant.


Sequence information Variant position: help 79 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 412 The length of the canonical sequence.
Location on the sequence: help VFIEDVSREFVEEFIWPAIQ S SALYEDRYLLGTSLARPCIA 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                         VFIEDVSREFVEEFIWPAIQSSALYEDRYLLGTSLARPCIA

Mouse                         VFIEDVSKEFVEEFIWPAVQSSALYEDRYLLGTSLARPCIA

Rat                           VFIEDVSKEFVEEFIWPAVQSSALYEDRYLLGTSLARPCIA

Bovine                        VFIEDISKEFVEEFIWPAIQSSALYEDRYLLGTSLARPCIA

Chicken                       VYIQDVCREFVEDFIWPAVRANALYEDRYMLGSALARPCIA

Xenopus laevis                VYIEDIRQQFVEEYIWPAVQANAIYEDRYLLGTSLARPCIA

Xenopus tropicalis            VYIEDMRQQFVEEYIWPAVQANAIYEDRYLLGTSLARPCIA

Zebrafish                     VFIEDLRSEFVQEFIWPALQANALYEDRYLLGTSIARPCIA

Drosophila                    VIVADVKQSFVEDYIWPAVQMGLVYEERYLLGTSLARPCIS

Baker's yeast                 FVCVDCREDFVKDILFPAVQVNAVYEDVYLLGTSLARPVIA

Fission yeast                 VYVEDLREEFINDTVIPAAQANAIYENVYLLGTSLARPIIA
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 1 – 412 Argininosuccinate synthase
Binding site 87 – 87
Binding site 92 – 92
Modified residue 87 – 87 Phosphotyrosine



Literature citations
Mutations and polymorphisms in the human argininosuccinate synthetase (ASS1) gene.
Engel K.; Hoehne W.; Haeberle J.;
Hum. Mutat. 30:300-307(2009)
Cited for: VARIANTS CTLN1 PRO-79; HIS-96; GLN-127; TRP-127; PRO-160; GLN-191; PRO-206; CYS-265; THR-277; ILE-284; SER-291; GLY-296; VAL-324; PHE-341; ARG-347 AND ASP-359; Mutations in the human argininosuccinate synthetase (ASS1) gene, impact on patients, common changes, and structural considerations.
Diez-Fernandez C.; Ruefenacht V.; Haeberle J.;
Hum. Mutat. 38:471-484(2017)
Cited for: VARIANTS CTLN1 27-GLN--LYS-412 DEL; ILE-64; PRO-79; 97-CYS--LYS-412 DEL; CYS-100; HIS-100; ASP-111; CYS-117; 138-GLN--LYS-412 DEL; SER-157; PRO-160; 163-TYR--LYS-412 DEL; PRO-164; LYS-184; ASP-190; PRO-206; ARG-230; ILE-237; PRO-258; VAL-258; CYS-265; 275-GLY--LYS-412 DEL; THR-277; 279-ARG--LYS-412 DEL; ILE-284; PRO-290; SER-291; GLY-296; ASP-299; VAL-302; GLY-306; CYS-307; 311-GLN--LYS-412 DEL; MET-321; SER-324; VAL-324; HIS-335; PHE-341; 344-ARG--LYS-412 DEL; ARG-347; VAL-356; 357-GLN--LYS-412 DEL; ASP-359; 380-GLN--LYS-412 DEL AND PRO-389;
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.