rs128621196

chrX-101358411-T-G

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1 PM2 PP2 PP3_Strong PP5

The NM_000061.3(BTK):c.1001A>C(p.Tyr334Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 23)
• Consequence: BTK NM_000061.3 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.80

Genes affected

BTK (HGNC:1133): (Bruton tyrosine kinase) The protein encoded by this gene plays a crucial role in B-cell development. Mutations in this gene cause X-linked agammaglobulinemia type 1, which is an immunodeficiency characterized by the failure to produce mature B lymphocytes, and associated with a failure of Ig heavy chain rearrangement. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2013]

ACMG classification

Verdict is Pathogenic. Variant got 10 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 4 uncertain in NM_000061.3
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant where missense usually causes diseases, BTK
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.989
• PP5: Variant X-101358411-T-G is Pathogenic according to our data. Variant chrX-101358411-T-G is described in ClinVar as [Pathogenic]. Clinvar id is 11368.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chrX-101358411-T-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
BTK	NM_000061.3	c.1001A>C	p.Tyr334Ser	missense_variant	12/19	ENST00000308731.8
BTK	NM_001287344.2	c.1103A>C	p.Tyr368Ser	missense_variant	12/19
BTK	NM_001287345.2	c.1001A>C	p.Tyr334Ser	missense_variant	13/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
BTK	ENST00000308731.8	c.1001A>C	p.Tyr334Ser	missense_variant	12/19	1	NM_000061.3	P3

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 23

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

X-linked agammaglobulinemia Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Oct 01, 1994

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.61	D
BayesDel_noAF	Pathogenic	0.64
Cadd	Pathogenic	28
Dann	Uncertain	0.99
DEOGEN2	Pathogenic	0.90	D;.;.;D
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.90	D;D;D;D
M_CAP	Pathogenic	0.82	D
MetaRNN	Pathogenic	0.99	D;D;D;D
MetaSVM	Pathogenic	1.1	D
MutationTaster	Benign	1.0	A;A
PrimateAI	Pathogenic	0.80	D
Sift4G	Uncertain	0.0030	D;D;D;D
Polyphen		0.99, 1.0	.;D;.;D
Vest4		0.90
MutPred		0.94		Gain of disorder (P = 0.0326);Gain of disorder (P = 0.0326);.;Gain of disorder (P = 0.0326);
MVP		1.0
MPC		3.1
ClinPred		1.0	D
GERP RS		6.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.99
gMVP		0.99

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

LitVar

Other links and lift over

dbSNP: rs128621196; hg19: chrX-100613399;