chr10-96227509-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_013314.4(BLNK):​c.262G>A​(p.Ala88Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00126 in 1,614,202 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A88S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0068 ( 11 hom., cov: 33)
Exomes 𝑓: 0.00068 ( 10 hom. )

Consequence

BLNK
NM_013314.4 missense

Scores

4
14

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 2.38
Variant links:
Genes affected
BLNK (HGNC:14211): (B cell linker) This gene encodes a cytoplasmic linker or adaptor protein that plays a critical role in B cell development. This protein bridges B cell receptor-associated kinase activation with downstream signaling pathways, thereby affecting various biological functions. The phosphorylation of five tyrosine residues is necessary for this protein to nucleate distinct signaling effectors following B cell receptor activation. Mutations in this gene cause hypoglobulinemia and absent B cells, a disease in which the pro- to pre-B-cell transition is developmentally blocked. Deficiency in this protein has also been shown in some cases of pre-B acute lymphoblastic leukemia. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, May 2012]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0062735677).
BP6
Variant 10-96227509-C-T is Benign according to our data. Variant chr10-96227509-C-T is described in ClinVar as [Benign]. Clinvar id is 487218.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 = 0.0068 (1036/152366) while in subpopulation AFR AF= 0.0222 (925/41590). AF 95% confidence interval is 0.0211. There are 11 homozygotes in gnomad4. There are 501 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 11 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
BLNKNM_013314.4 linkuse as main transcriptc.262G>A p.Ala88Thr missense_variant 5/17 ENST00000224337.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
BLNKENST00000224337.10 linkuse as main transcriptc.262G>A p.Ala88Thr missense_variant 5/171 NM_013314.4 P2Q8WV28-1

Frequencies

GnomAD3 genomes
AF:
0.00680
AC:
1036
AN:
152248
Hom.:
11
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0223
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00537
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.00764
GnomAD3 exomes
AF:
0.00175
AC:
439
AN:
251412
Hom.:
5
AF XY:
0.00129
AC XY:
175
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.0223
Gnomad AMR exome
AF:
0.00173
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000615
Gnomad OTH exome
AF:
0.000978
GnomAD4 exome
AF:
0.000681
AC:
996
AN:
1461836
Hom.:
10
Cov.:
37
AF XY:
0.000580
AC XY:
422
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.0221
Gnomad4 AMR exome
AF:
0.00228
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000927
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000504
Gnomad4 OTH exome
AF:
0.00132
GnomAD4 genome
AF:
0.00680
AC:
1036
AN:
152366
Hom.:
11
Cov.:
33
AF XY:
0.00672
AC XY:
501
AN XY:
74512
show subpopulations
Gnomad4 AFR
AF:
0.0222
Gnomad4 AMR
AF:
0.00536
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.00756
Alfa
AF:
0.000431
Hom.:
0
Bravo
AF:
0.00805
ESP6500AA
AF:
0.0266
AC:
117
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.00215
AC:
261
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Agammaglobulinemia 4, autosomal recessive Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 25, 2024- -
not provided Benign:1
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.077
BayesDel_addAF
Benign
-0.51
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.41
T;.;T;.
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.092
FATHMM_MKL
Benign
0.10
N
LIST_S2
Uncertain
0.88
D;D;T;D
MetaRNN
Benign
0.0063
T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.5
L;L;.;L
MutationTaster
Benign
1.0
N;N;N;N
PrimateAI
Uncertain
0.53
T
PROVEAN
Benign
-1.9
N;N;N;D
REVEL
Benign
0.074
Sift
Uncertain
0.022
D;D;D;D
Sift4G
Benign
0.26
T;T;T;T
Polyphen
0.64
P;P;B;.
Vest4
0.33
MVP
0.50
MPC
0.54
ClinPred
0.020
T
GERP RS
5.8
Varity_R
0.065
gMVP
0.094

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs144903484; hg19: chr10-97987265; API