{{Rsnum
|rsid=137854533
|Chromosome=20
|Orientation=plus
|geno1=(C;C)
|geno2=(C;G)
|geno3=(G;G)
|Gene=GNAS
|position=58909542
|Gene_s=GNAS
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}{{omim
|id=139320
|variant=0012
|rsnum=137854533
}}{{ClinVar
|rsid=137854533
|Reversed=0
|FwdREF=G
|FwdALT=C
|REF=G
|ALT=C
|RSPOS=57484597
|CHROM=20
|dbSNPBuildID=133
|SSR=0
|SAO=1
|VP=0x050260000000000002110100
|GENEINFO=GNAS:2778
|GENE_NAME=GNAS
|GENE_ID=2778
|WGT=0
|VC=SNV
|CLNALLE=1
|CLNHGVS=NC_000020.10:g.57484597G>C
|CLNORIGIN=1
|CLNSIG=255
|Tags=PM;S3D;OTHERKG;LSD;OM
|CLNACC=RCV000017296.1
|CLNDBN=Pituitary adenoma, acth-secreting, somatic
|CLNSRC=OMIM Allelic Variant
|CLNSRCID=139320.0012
|Disease=Pituitary adenoma
}}