rs143511203

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_001783.4(CD79A):​c.320G>A​(p.Arg107Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,613,534 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

CD79A
NM_001783.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1O:1

Conservation

PhyloP100: -0.957

Publications

5 publications found
Variant links:
Genes affected
CD79A (HGNC:1698): (CD79a molecule) The B lymphocyte antigen receptor is a multimeric complex that includes the antigen-specific component, surface immunoglobulin (Ig). Surface Ig non-covalently associates with two other proteins, Ig-alpha and Ig-beta, which are necessary for expression and function of the B-cell antigen receptor. This gene encodes the Ig-alpha protein of the B-cell antigen component. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]
CD79A Gene-Disease associations (from GenCC):
  • agammaglobulinemia 3, autosomal recessive
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
  • autosomal agammaglobulinemia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.051636875).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CD79ANM_001783.4 linkc.320G>A p.Arg107Gln missense_variant Exon 2 of 5 ENST00000221972.8 NP_001774.1 P11912-1
CD79ANM_021601.4 linkc.265+55G>A intron_variant Intron 2 of 4 NP_067612.1 P11912-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CD79AENST00000221972.8 linkc.320G>A p.Arg107Gln missense_variant Exon 2 of 5 1 NM_001783.4 ENSP00000221972.3 P11912-1
CD79AENST00000444740.2 linkc.265+55G>A intron_variant Intron 2 of 4 1 ENSP00000400605.1 P11912-2
CD79AENST00000597454.2 linkc.320G>A p.Arg107Gln missense_variant Exon 2 of 4 3 ENSP00000468922.2 M0QX61

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152134
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000966
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:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000362
AC:
9
AN:
248388
AF XY:
0.0000372
show subpopulations
Gnomad AFR exome
AF:
0.000123
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:
0.0000450
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000137
AC:
20
AN:
1461400
Hom.:
0
Cov.:
35
AF XY:
0.0000124
AC XY:
9
AN XY:
726944
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33480
American (AMR)
AF:
0.0000447
AC:
2
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52968
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000899
AC:
10
AN:
1111978
Other (OTH)
AF:
0.00
AC:
0
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.460
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000394
AC:
6
AN:
152134
Hom.:
0
Cov.:
31
AF XY:
0.0000538
AC XY:
4
AN XY:
74300
show subpopulations
African (AFR)
AF:
0.0000966
AC:
4
AN:
41418
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.0000942
AC:
1
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68018
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.542
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000265
Hom.:
0
Bravo
AF:
0.0000453
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000577
AC:
7

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Agammaglobulinemia 3, autosomal recessive Uncertain:1
May 25, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 107 of the CD79A protein (p.Arg107Gln). This variant is present in population databases (rs143511203, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with CD79A-related conditions. ClinVar contains an entry for this variant (Variation ID: 133833). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not specified Other:1
Sep 19, 2013
ITMI
Significance:not provided
Review Status:no classification provided
Collection Method:reference population

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.086
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.65
CADD
Benign
0.76
DANN
Benign
0.81
DEOGEN2
Benign
0.22
T;T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.6
FATHMM_MKL
Benign
0.0079
N
LIST_S2
Benign
0.54
T;T
M_CAP
Benign
0.018
T
MetaRNN
Benign
0.052
T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
0.79
N;.
PhyloP100
-0.96
PrimateAI
Benign
0.20
T
PROVEAN
Benign
0.26
N;.
REVEL
Benign
0.070
Sift
Benign
0.51
T;.
Sift4G
Benign
0.82
T;T
Polyphen
0.047
B;.
Vest4
0.083
MVP
0.49
MPC
0.50
ClinPred
0.018
T
GERP RS
-4.5
Varity_R
0.023
gMVP
0.67
Mutation Taster
=92/8
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

Publications

Other links and lift over

dbSNP: rs143511203; hg19: chr19-42383300; COSMIC: COSV55738124; COSMIC: COSV55738124; API