NM_000675.6:c.432C>G

Variant names:

• chr22-24440682-C-G
• rs8192446
• NM_000675.6:c.432C>G

Variant summary

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

The NM_000675.6(ADORA2A):​c.432C>G​(p.Asn144Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,182 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. N144N) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ADORA2A NM_000675.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.60
• Publications: 9 publications found

Genes affected

ADORA2A (HGNC:263): (adenosine A2a receptor) This gene encodes a member of the guanine nucleotide-binding protein (G protein)-coupled receptor (GPCR) superfamily, which is subdivided into classes and subtypes. The receptors are seven-pass transmembrane proteins that respond to extracellular cues and activate intracellular signal transduction pathways. This protein, an adenosine receptor of A2A subtype, uses adenosine as the preferred endogenous agonist and preferentially interacts with the G(s) and G(olf) family of G proteins to increase intracellular cAMP levels. It plays an important role in many biological functions, such as cardiac rhythm and circulation, cerebral and renal blood flow, immune function, pain regulation, and sleep. It has been implicated in pathophysiological conditions such as inflammatory diseases and neurodegenerative disorders. Alternative splicing results in multiple transcript variants. A read-through transcript composed of the upstream SPECC1L (sperm antigen with calponin homology and coiled-coil domains 1-like) and ADORA2A (adenosine A2a receptor) gene sequence has been identified, but it is thought to be non-coding. [provided by RefSeq, Jun 2013]

SPECC1L-ADORA2A (HGNC:49185): (SPECC1L-ADORA2A readthrough (NMD candidate)) This locus represents naturally occurring readthrough transcription between the neighboring SPECC1L (sperm antigen with calponin homology and coiled-coil domains 1-like) and ADORA2A (adenosine A2a receptor) genes on chromosome 22. The readthrough transcript is a candidate for nonsense-mediated mRNA decay (NMD) and is unlikely to produce a protein product. [provided by RefSeq, Jun 2013]

ADORA2A-AS1 (HGNC:37122): (ADORA2A antisense RNA 1)

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000675.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADORA2A	NM_000675.6	MANE Select	c.432C>G	p.Asn144Lys	missense	Exon 3 of 3	NP_000666.2
	ADORA2A	NM_001278497.2		c.432C>G	p.Asn144Lys	missense	Exon 4 of 4	NP_001265426.1
	ADORA2A	NM_001278498.2		c.432C>G	p.Asn144Lys	missense	Exon 3 of 3	NP_001265427.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADORA2A	ENST00000337539.12	TSL:1 MANE Select	c.432C>G	p.Asn144Lys	missense	Exon 3 of 3	ENSP00000336630.6
	ADORA2A	ENST00000618076.3	TSL:1	c.432C>G	p.Asn144Lys	missense	Exon 3 of 3	ENSP00000481552.1
	SPECC1L-ADORA2A	ENST00000358654.2	TSL:2	n.*1567C>G		non_coding_transcript_exon	Exon 20 of 20	ENSP00000351480.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251110 AF XY: 0.00000737

Gnomad AFR exome AF: 0.0000615

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461182 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 726758

African (AFR) AF: 0.0000299 AC: 1 AN: 33472

American (AMR) AF: 0.00 AC: 0 AN: 44698

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26102

East Asian (EAS) AF: 0.00 AC: 0 AN: 39684

South Asian (SAS) AF: 0.00 AC: 0 AN: 86236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111444

Other (OTH) AF: 0.00 AC: 0 AN: 60370

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.78
BayesDel_addAF	Benign	-0.16	T
BayesDel_noAF	Benign	-0.28
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.74	D
Eigen	Uncertain	0.49
Eigen_PC	Uncertain	0.49
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.92	D
M_CAP	Uncertain	0.087	D
MetaRNN	Uncertain	0.72	D
MetaSVM	Uncertain	-0.20	T
MutationAssessor	Benign	1.8	L
PhyloP100		2.6
PrimateAI	Uncertain	0.50	T
PROVEAN	Uncertain	-4.3	D
REVEL	Uncertain	0.45
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.012	D
Polyphen		0.99	D
Vest4		0.34
MutPred		0.72		Gain of methylation at N144 (P = 0.0019)
MVP		0.90
MPC		1.4
ClinPred		0.94	D
GERP RS		4.7
Varity_R		0.93
gMVP		0.64
Mutation Taster		=32/68	disease causing

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: rs8192446; hg19: chr22-24836650;