chr4-2876008-C-G

Variant names:

• chr4-2876008-C-G
• NM_001354761.2:c.93C>G

Variant summary

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

The NM_001354761.2(ADD1):​c.93C>G​(p.Asn31Lys) 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 1,461,818 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ADD1 NM_001354761.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.06
• Publications: 0 publications found

Genes affected

ADD1 (HGNC:243): (adducin 1) Adducins are a family of cytoskeletal proteins encoded by three genes (alpha, beta, and gamma). Adducin acts as a heterodimer of the related alpha, beta, or gamma subunits. The protein encoded by this gene represents the alpha subunit. Alpha- and beta-adducin include a protease-resistant N-terminal region and a protease-sensitive, hydrophilic C-terminal region. Adducin binds with high affinity to Ca(2+)/calmodulin and is a substrate for protein kinases A and C. [provided by RefSeq, Aug 2017]

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=0.23444349).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001354761.2. 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
	ADD1	NM_001354761.2	MANE Select	c.93C>G	p.Asn31Lys	missense	Exon 2 of 16	NP_001341690.1	A0A804HL01
	ADD1	NM_001354756.2		c.93C>G	p.Asn31Lys	missense	Exon 2 of 16	NP_001341685.1
	ADD1	NM_014189.4		c.93C>G	p.Asn31Lys	missense	Exon 2 of 15	NP_054908.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ADD1	ENST00000683351.1	MANE Select	c.93C>G	p.Asn31Lys	missense	Exon 2 of 16	ENSP00000508142.1	A0A804HL01
	ADD1	ENST00000355842.7	TSL:1	c.93C>G	p.Asn31Lys	missense	Exon 3 of 18	ENSP00000348100.3	P35611-4
	ADD1	ENST00000398123.6	TSL:1	c.93C>G	p.Asn31Lys	missense	Exon 1 of 15	ENSP00000381191.2	P35611-6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461818 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727208

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44720

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86242

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111968

Other (OTH) AF: 0.0000166 AC: 1 AN: 60392

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.48
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.50
CADD	Benign	20
DANN	Uncertain	1.0
DEOGEN2	Benign	0.072	T
Eigen	Benign	-0.074
Eigen_PC	Benign	-0.021
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.23	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.5	L
PhyloP100		1.1
PrimateAI	Pathogenic	0.81	D
PROVEAN	Uncertain	-2.6	D
REVEL	Benign	0.065
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.031	D
Polyphen		0.16	B
Vest4		0.30
MutPred		0.25		Gain of glycosylation at Y35 (P = 0.0016)
MVP		0.45
MPC		0.58
ClinPred		0.95	D
GERP RS		2.3
PromoterAI		-0.028	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.42
gMVP		0.21
Mutation Taster		=72/28	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

hg19: chr4-2877735;