UniProtKB/SwissProt variant VAR

Variant information

Variant position:

201

The position of the amino-acid change on the UniProtKB canonical protein sequence.

Type of variant:

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:

From Arginine (R) to Histidine (H) at position 201 (R201H, p.Arg201His).

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:

Change from large size and basic (R) to medium size and polar (H)

The physico-chemical property of the reference and variant residues and the change implicated.

BLOSUM score:

0

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:

In MAS and AIMAH1; also found in somatotrophinoma.

Any additional useful information about the variant.

Other resources:

Links to websites of interest for the variant.

Variant rs121913495 [ dbSNP | Ensembl ]

Sequence information

Variant position:

201

The position of the amino-acid change on the UniProtKB canonical protein sequence.

Protein sequence length:

394

The length of the canonical sequence.

Location on the sequence:

KIDVIKQADYVPSDQDLLRC R VLTSGIFETKFQVDKVNFHM

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:

The multiple alignment of the region surrounding the variant against various orthologous sequences.

Human                         KIDVIKQADYVPSDQDLLRCRVLTSGIFETKFQVDKVNFHM

Mouse                         KIDVIKQADYVPSDQDLLRCRVLTSGIFETKFQVDKVNFHM

Rat                           KIDVIKQADYVPSDQDLLRCRVLTSGIFETKFQVDKVNFHM

Bovine                        KIDVIKQDDYVPSDQDLLRCRVLTSGIFETKFQVDKVNFHM

Sequence annotation in neighborhood:

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.

Type	Positions	Description
Chain	2 – 394	Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Domain	39 – 394	G-alpha
Nucleotide binding	197 – 204	GTP
Region	196 – 204	G2 motif
Metal binding	204 – 204	Magnesium
Modified residue	201 – 201	ADP-ribosylarginine; by cholera toxin

Literature citations

Identification of a mutation in the gene encoding the alpha subunit of the stimulatory G protein of adenylyl cyclase in McCune-Albright syndrome.
Schwindinger W.F.; Francomano C.A.; Levine M.A.;
Proc. Natl. Acad. Sci. U.S.A. 89:5152-5156(1992)
Cited for: VARIANT MAS HIS-201;

Activating mutations of the stimulatory G protein in the McCune-Albright syndrome.
Weinstein L.S.; Shenker A.; Gejman P.V.; Merino M.J.; Friedman E.; Spiegel A.M.;
N. Engl. J. Med. 325:1688-1695(1991)
Cited for: VARIANTS MAS CYS-201 AND HIS-201;

GTPase inhibiting mutations activate the alpha chain of Gs and stimulate adenylyl cyclase in human pituitary tumours.
Landis C.A.; Masters S.B.; Spada A.; Pace A.M.; Bourne H.R.; Vallar L.;
Nature 340:692-696(1989)
Cited for: VARIANTS SOMATOTROPHINOMA CYS-201; HIS-201 AND ARG-227;

Cushing's syndrome secondary to adrenocorticotropin-independent macronodular adrenocortical hyperplasia due to activating mutations of GNAS1 gene.
Fragoso M.C.B.V.; Domenice S.; Latronico A.C.; Martin R.M.; Pereira M.A.A.; Zerbini M.C.N.; Lucon A.M.; Mendonca B.B.;
J. Clin. Endocrinol. Metab. 88:2147-2151(2003)
Cited for: VARIANTS AIMAH1 HIS-201 AND SER-201;

UniProtKB/Swiss-Prot variant pages

UniProtKB/Swiss-Prot P63092: Variant p.Arg201His