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UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P63092: Variant p.Asp156Asn

Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Gene: GNAS
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Variant information Variant position: help 156 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 Aspartate (D) to Asparagine (N) at position 156 (D156N, p.Asp156Asn). 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 acidic (D) to medium size and polar (N) 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 PHP1A. Any additional useful information about the variant.


Sequence information Variant position: help 156 The position of the amino-acid change on the UniProtKB canonical protein sequence.
Protein sequence length: help 394 The length of the canonical sequence.
Location on the sequence: help NVPDFDFPPEFYEHAKALWE D EGVRACYERSNEYQLIDCAQ 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                         NVPDFDFPPEFYEHAKALWEDEGVRACYERSNEYQLIDCAQ

Mouse                         NVPNFDFPPEFYEHAKALWEDEGVRACYERSNEYQLIDCAQ

Rat                           NVPNFDFPPEFYEHAKALWEDEGVRACYERSNEYQLIDCAQ

Bovine                        NVPDFDFPPEFYEHAKALWEDEGVRACYERSNEYQLIDCAQ
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 – 394 Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Domain 39 – 394 G-alpha
Mutagenesis 170 – 170 Q -> A. Increases GDP release but does not affect receptor-mediated activation.



Literature citations
GNAS1 lesions in pseudohypoparathyroidism Ia and Ic: genotype phenotype relationship and evidence of the maternal transmission of the hormonal resistance.
Linglart A.; Carel J.-C.; Garabedian M.; Le T.; Mallet E.; Kottler M.-L.;
J. Clin. Endocrinol. Metab. 87:189-197(2002)
Cited for: VARIANTS PHP1A ASN-156; MET-159 AND LYS-280;
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.