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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P17302: Variant p.His194Pro

Gap junction alpha-1 protein
Gene: GJA1
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Variant information Variant position: help 194 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 Histidine (H) to Proline (P) at position 194 (H194P, p.His194Pro). 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 polar (H) to medium size and hydrophobic (P) 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 ODDD; atypical form of ODDD characterized by the predominance of the ocular involvement and by the absence of hand and/or foot syndactyly and absence of any neurologic signs. Any additional useful information about the variant.
Other resources: help Links to websites of interest for the variant.


Sequence information Variant position: help 194 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 382 The length of the canonical sequence.
Location on the sequence: help WYIYGFSLSAVYTCKRDPCP H QVDCFLSRPTEKTIFIIFML 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                         WYIYGFSLSAVYTCKRDPCPHQVDCFLSRPTEKTIFIIFML

                              WYIYGFSLSAVYTCKREPCPHQVDCFLSRPTEKTIFIIFML

Mouse                         WYIYGFSLSAVYTCKRDPCPHQVDCFLSRPTEKTIFIIFML

Rat                           WYIYGFSLSAVYTCKRDPCPHQVDCFLSRPTEKTIFIIFML

Pig                           WYIYGFSLSAVYTCKRDPCPHQVDCFLSRPTEKTIFIIFML

Bovine                        WYIYGFSLSAVYTCKRDPCPHQVDCFLSRPTEKTIFIIFML

Rabbit                        WYIYGFSLSAVYTCKRDPCPHQVDCFLSRPTEKTIFIIFML

Chicken                       WYIYGFSLSAIYTCERDPCPHRVDCFLSRPTEKTIFIVFML

Xenopus laevis                WYMYGFSLSAIYTCKRDPCPHQVDCFLSRPTEKTIFIWFML

Zebrafish                     WYLYGFSLSAVYTCERTPCPHRVDCFLSRPTEKTIFIIFML
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 – 382 Gap junction alpha-1 protein
Topological domain 177 – 207 Extracellular
Disulfide bond 187 – 198
Beta strand 190 – 194



Literature citations
A novel GJA1 mutation causes oculodentodigital dysplasia without syndactyly.
Vitiello C.; D'Adamo P.; Gentile F.; Vingolo E.M.; Gasparini P.; Banfi S.;
Am. J. Med. Genet. A 133:58-60(2005)
Cited for: VARIANT ODDD PRO-194;
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.