7-107045145-C-G

Variant names:

• chr7-107045145-C-G
• rs2116739762
• NM_002736.3:c.238C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_002736.3(PRKAR2B):​c.238C>G​(p.Pro80Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000737 in 1,357,710 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. P80S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.4e-7 (0 hom.)
• Consequence: PRKAR2B NM_002736.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.86
• Publications: 0 publications found

Genes affected

PRKAR2B (HGNC:9392): (protein kinase cAMP-dependent type II regulatory subunit beta) cAMP is a signaling molecule important for a variety of cellular functions. cAMP exerts its effects by activating the cAMP-dependent protein kinase, which transduces the signal through phosphorylation of different target proteins. The inactive kinase holoenzyme is a tetramer composed of two regulatory and two catalytic subunits. cAMP causes the dissociation of the inactive holoenzyme into a dimer of regulatory subunits bound to four cAMP and two free monomeric catalytic subunits. Four different regulatory subunits and three catalytic subunits have been identified in humans. The protein encoded by this gene is one of the regulatory subunits. This subunit can be phosphorylated by the activated catalytic subunit. This subunit has been shown to interact with and suppress the transcriptional activity of the cAMP responsive element binding protein 1 (CREB1) in activated T cells. Knockout studies in mice suggest that this subunit may play an important role in regulating energy balance and adiposity. The studies also suggest that this subunit may mediate the gene induction and cataleptic behavior induced by haloperidol. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.09313986).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002736.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRKAR2B	NM_002736.3	MANE Select	c.238C>G	p.Pro80Ala	missense	Exon 1 of 11	NP_002727.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PRKAR2B	ENST00000265717.5	TSL:1 MANE Select	c.238C>G	p.Pro80Ala	missense	Exon 1 of 11	ENSP00000265717.4	P31323
	PRKAR2B	ENST00000854598.1		c.238C>G	p.Pro80Ala	missense	Exon 1 of 12	ENSP00000524657.1
	PRKAR2B	ENST00000913925.1		c.238C>G	p.Pro80Ala	missense	Exon 1 of 11	ENSP00000583984.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 7.37e-7 AC: 1 AN: 1357710 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 666682

African (AFR) AF: 0.00 AC: 0 AN: 30198

American (AMR) AF: 0.00 AC: 0 AN: 33414

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 23978

East Asian (EAS) AF: 0.00 AC: 0 AN: 34736

South Asian (SAS) AF: 0.00 AC: 0 AN: 76952

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 34976

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3998

European-Non Finnish (NFE) AF: 9.41e-7 AC: 1 AN: 1063048

Other (OTH) AF: 0.00 AC: 0 AN: 56410

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.087
BayesDel_addAF	Benign	-0.12	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	17
DANN	Benign	0.86
DEOGEN2	Benign	0.32	T
Eigen	Benign	-0.65
Eigen_PC	Benign	-0.50
FATHMM_MKL	Uncertain	0.83	D
M_CAP	Uncertain	0.17	D
MetaRNN	Benign	0.093	T
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	0.0	N
PhyloP100		1.9
PrimateAI	Uncertain	0.71	T
PROVEAN	Benign	-1.3	N
REVEL	Benign	0.26
Sift	Benign	0.15	T
Sift4G	Benign	0.39	T
Polyphen		0.0	B
Vest4		0.091
MutPred		0.14		Loss of glycosylation at P80 (P = 0.1149)
MVP		0.32
MPC		0.83
ClinPred		0.077	T
GERP RS		2.5
PromoterAI		0.15	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.050
gMVP		0.29
Mutation Taster		=77/23	polymorphism

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

Other links and lift over

dbSNP: rs2116739762; hg19: chr7-106685590;