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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P43080: Variant p.Leu80Ile

Guanylyl cyclase-activating protein 1
Gene: GUCA1A
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Variant information Variant position: help 80 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Type of variant: help US 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 Isoleucine (I) at position 80 (L80I, p.Leu80Ile). 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 2 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 COD3; uncertain significance. Any additional useful information about the variant.


Sequence information Variant position: help 80 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 201 The length of the canonical sequence.
Location on the sequence: help FETFDFNKDGYIDFMEYVAA L SLVLKGKVEQKLRWYFKLYD 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                         FETFDFNKDGYIDFMEYVAALSLVLKGKVEQKLRWYFKLYD

Mouse                         FETFDFNKDGYIDFMEYVAALSLVLKGKVEQKLRWYFKLYD

Bovine                        FETFDFNKDGYIDFMEYVAALSLVLKGKVEQKLRWYFKLYD

Chicken                       FETFDFNKDGYIDFMEYVAALSLVLKGKVDQKLRWYFKLYD

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 2 – 201 Guanylyl cyclase-activating protein 1
Domain 51 – 86 EF-hand 2
Binding site 64 – 64
Binding site 66 – 66
Binding site 68 – 68
Binding site 70 – 70
Binding site 75 – 75
Binding site 100 – 100



Literature citations
Characterization of GUCA1A-associated dominant cone/cone-rod dystrophy: low prevalence among Japanese patients with inherited retinal dystrophies.
Mizobuchi K.; Hayashi T.; Katagiri S.; Yoshitake K.; Fujinami K.; Yang L.; Kuniyoshi K.; Shinoda K.; Machida S.; Kondo M.; Ueno S.; Terasaki H.; Matsuura T.; Tsunoda K.; Iwata T.; Nakano T.;
Sci. Rep. 9:16851-16851(2019)
Cited for: VARIANTS COD3 ILE-42; GLU-68; ILE-80; ASN-99; SER-99; PHE-151 AND ARG-184;
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.