5-148826877-G-C

Position:

• chr5-148826877-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000024.6(ADRB2):​c.46G>C​(p.Gly16Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar.

• Frequency: Genomes: not found (cov: 35)
• Consequence: ADRB2 NM_000024.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.81

Genes affected

ADRB2 (HGNC:286): (adrenoceptor beta 2) This gene encodes beta-2-adrenergic receptor which is a member of the G protein-coupled receptor superfamily. This receptor is directly associated with one of its ultimate effectors, the class C L-type calcium channel Ca(V)1.2. This receptor-channel complex also contains a G protein, an adenylyl cyclase, cAMP-dependent kinase, and the counterbalancing phosphatase, PP2A. The assembly of the signaling complex provides a mechanism that ensures specific and rapid signaling by this G protein-coupled receptor. This receptor is also a transcription regulator of the alpha-synuclein gene, and together, both genes are believed to be associated with risk of Parkinson's Disease. This gene is intronless. Different polymorphic forms, point mutations, and/or downregulation of this gene are associated with nocturnal asthma, obesity, type 2 diabetes and cardiovascular disease. [provided by RefSeq, Oct 2019]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06803918).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADRB2	NM_000024.6	c.46G>C	p.Gly16Arg	missense_variant	1/1	ENST00000305988.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADRB2	ENST00000305988.6	c.46G>C	p.Gly16Arg	missense_variant	1/1		NM_000024.6	P1

Frequencies

GnomAD3 genomes Cov.: 35

GnomAD4 exome Cov.: 69

GnomAD4 genome Cov.: 35

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.091
BayesDel_addAF	Benign	-0.069	T
BayesDel_noAF	Benign	-0.34
CADD	Benign	18
DANN	Uncertain	0.97
DEOGEN2	Benign	0.080	T
Eigen	Benign	-0.63
Eigen_PC	Benign	-0.58
FATHMM_MKL	Benign	0.14	N
LIST_S2	Benign	0.79	T
M_CAP	Benign	0.029	D
MetaRNN	Benign	0.068	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.90	L
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.40	T
PROVEAN	Benign	-0.36	N
REVEL	Benign	0.069
Sift	Benign	0.35	T
Sift4G	Benign	0.50	T
Polyphen		0.043	B
Vest4		0.043
MutPred		0.33		Gain of catalytic residue at G16 (P = 0.0533);
MVP		0.52
MPC		0.74
ClinPred		0.24	T
GERP RS		3.7
Varity_R		0.097
gMVP		0.62

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs1042713; hg19: chr5-148206440;