rs151336936

Variant names:

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_000022.4(ADA):c.110C>T(p.Ala37Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000245 in 1,614,192 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A37T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

ADA
NM_000022.4 missense

Scores

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.53

Publications

1 publications found

Variant links:

Genes affected

ADA (HGNC:186): (adenosine deaminase) This gene encodes an enzyme that catalyzes the hydrolysis of adenosine to inosine in the purine catabolic pathway. Various mutations have been described for this gene and have been linked to human diseases related to impaired immune function such as severe combined immunodeficiency disease (SCID) which is the result of a deficiency in the ADA enzyme. In ADA-deficient individuals there is a marked depletion of T, B, and NK lymphocytes, and consequently, a lack of both humoral and cellular immunity. Conversely, elevated levels of this enzyme are associated with congenital hemolytic anemia. [provided by RefSeq, Sep 2019]

ADA Gene-Disease associations (from GenCC):

severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-negative, NK cell-negative, due to adenosine deaminase deficiency
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, Myriad Women’s Health, Orphanet
Omenn syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ADA links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.012588382).

BP6

Variant 20-44629155-G-A is Benign according to our data. Variant chr20-44629155-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 513280.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00137 (208/152320) while in subpopulation AFR AF = 0.00493 (205/41580). AF 95% confidence interval is 0.00438. There are 0 homozygotes in GnomAd4. There are 97 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ADA	NM_000022.4 link	c.110C>T	p.Ala37Val	missense_variant	Exon 3 of 12	ENST00000372874.9	NP_000013.2	P00813A0A0S2Z381
ADA	NM_001322051.2 link	c.110C>T	p.Ala37Val	missense_variant	Exon 3 of 11		NP_001308980.1	F5GWI4
ADA	NR_136160.2 link	n.202C>T		non_coding_transcript_exon_variant	Exon 3 of 11
ADA	NM_001322050.2 link	c.-180C>T		5_prime_UTR_variant	Exon 3 of 11		NP_001308979.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ADA	ENST00000372874.9 link	c.110C>T	p.Ala37Val	missense_variant	Exon 3 of 12	1	NM_000022.4	ENSP00000361965.4	P00813
ADA	ENST00000695995.1 link	c.110C>T	p.Ala37Val	missense_variant	Exon 3 of 9			ENSP00000512318.1	A0A8Q3SI64
ADA	ENST00000695991.1 link	c.110C>T	p.Ala37Val	missense_variant	Exon 3 of 8			ENSP00000512314.1	A0A0S2Z3B9
ADA	ENST00000696038.1 link	n.110C>T		non_coding_transcript_exon_variant	Exon 3 of 9			ENSP00000512344.1	A0A8Q3SJ57

Frequencies

GnomAD3 genomes

AF:

0.00137

AC:

208

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00494

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.000406

AC:

102

AN:

251326

AF XY:

0.000309

show subpopulations

Gnomad AFR exome

AF:

0.00615

Gnomad AMR exome

AF:

0.0000289

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:

0.000129

AC:

188

AN:

1461872

Hom.:

Cov.:

AF XY:

0.000100

AC XY:

AN XY:

727236

show subpopulations

African (AFR)

AF:

0.00490

AC:

164

AN:

33480

American (AMR)

AF:

0.0000671

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53404

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112008

Other (OTH)

AF:

0.000281

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00137

AC:

208

AN:

152320

Hom.:

Cov.:

AF XY:

0.00130

AC XY:

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.00493

AC:

205

AN:

41580

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5172

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.00142

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000286

Hom.:

Bravo

AF:

0.00144

ESP6500AA

AF:

0.00590

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000544

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Severe combined immunodeficiency, autosomal recessive, T cell-negative, B cell-negative, NK cell-negative, due to adenosine deaminase deficiency

Benign:1

Jan 13, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:1

Nov 08, 2017

GeneDx

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.096

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.19

CADD

Benign

(source)

DANN

Benign

0.93

DEOGEN2

Uncertain

0.79

D;D

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.67

FATHMM_MKL

Benign

0.43

LIST_S2

Uncertain

0.96

D;D

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.013

T;T

MetaSVM

Uncertain

-0.077

MutationAssessor

Benign

1.9

L;.

PhyloP100

1.5

PrimateAI

Benign

0.24

PROVEAN

Benign

-1.7

N;N

REVEL

Benign

0.24

Sift

Benign

0.27

T;T

Sift4G

Benign

0.22

T;T

Polyphen

0.0030

B;.

Vest4

0.36

MVP

0.67

MPC

0.15

ClinPred

0.013

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.15

gMVP

0.46

Mutation Taster

=89/11

polymorphism

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over