2-24819938-G-T

Position:

• chr2-24819938-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_004036.5(ADCY3):​c.3429C>A​(p.Asn1143Lys) 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. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 31)
• Consequence: ADCY3 NM_004036.5 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 1.27

Genes affected

ADCY3 (HGNC:234): (adenylate cyclase 3) This gene encodes adenylyl cyclase 3 which is a membrane-associated enzyme and catalyzes the formation of the secondary messenger cyclic adenosine monophosphate (cAMP). This protein appears to be widely expressed in various human tissues and may be involved in a number of physiological and pathophysiological metabolic processes. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Feb 2016]

CENPO (HGNC:28152): (centromere protein O) This gene encodes a component of the interphase centromere complex. The encoded protein is localized to the centromere throughout the cell cycle and is required for bipolar spindle assembly, chromosome segregation and checkpoint signaling during mitosis. Alternatively spliced transcript variants encoding multiple protein isoforms have been observed for this gene. [provided by RefSeq, Dec 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ADCY3. . Gene score misZ 2.5726 (greater than the threshold 3.09). Trascript score misZ 3.1828 (greater than threshold 3.09). GenCC has associacion of gene with body mass index quantitative trait locus 19.
• BP4: Computational evidence support a benign effect (MetaRNN=0.16465431).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ADCY3	NM_004036.5	c.3429C>A	p.Asn1143Lys	missense_variant	22/22	ENST00000679454.1
CENPO	NM_001322101.2	c.*620G>T		3_prime_UTR_variant	8/8	ENST00000380834.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ADCY3	ENST00000679454.1	c.3429C>A	p.Asn1143Lys	missense_variant	22/22		NM_004036.5	P4
CENPO	ENST00000380834.7	c.*620G>T		3_prime_UTR_variant	8/8	5	NM_001322101.2	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 31

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

ADCY3-related disorder Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 10, 2024

The ADCY3 c.3432C>A variant is predicted to result in the amino acid substitution p.Asn1144Lys. To our knowledge, this variant has not been reported in the literature or in a large population database, indicating this variant is rare. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.49
CADD	Benign	14
DANN	Uncertain	0.98
DEOGEN2	Benign	0.38	T;T;.
Eigen	Benign	-0.51
Eigen_PC	Benign	-0.30
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Benign	0.85	T;T;T
M_CAP	Benign	0.034	D
MetaRNN	Benign	0.16	T;T;T
MetaSVM	Benign	-0.67	T
MutationAssessor	Benign	0.69	N;.;.
MutationTaster	Benign	0.58	N;N;D;D
PrimateAI	Uncertain	0.51	T
PROVEAN	Benign	-1.0	N;.;.
REVEL	Benign	0.20
Sift	Benign	0.14	T;.;.
Sift4G	Benign	0.45	T;T;T
Polyphen		0.0	B;.;.
Vest4		0.21
MutPred		0.26		Gain of ubiquitination at N1143 (P = 0.0094);.;.;
MVP		0.71
MPC		0.44
ClinPred		0.18	T
GERP RS		4.7
Varity_R		0.061
gMVP		0.21

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: rs1667294209; hg19: chr2-25042807;