dbSNP rs746637123: BCR:p.Ala115Asp (chr22-23181304-C-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_004327.4(BCR):c.344C>A(p.Ala115Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000827 in 1,208,540 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 8.3e-7 ( 0 hom. )

Consequence

BCR
NM_004327.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.02

Variant links:

Genes affected

BCR (HGNC:1014): (BCR activator of RhoGEF and GTPase) A reciprocal translocation between chromosomes 22 and 9 produces the Philadelphia chromosome, which is often found in patients with chronic myelogenous leukemia. The chromosome 22 breakpoint for this translocation is located within the BCR gene. The translocation produces a fusion protein which is encoded by sequence from both BCR and ABL, the gene at the chromosome 9 breakpoint. Although the BCR-ABL fusion protein has been extensively studied, the function of the normal BCR gene product is not clear. The unregulated tyrosine kinase activity of BCR-ABL1 contributes to the immortality of leukaemic cells. The BCR protein has serine/threonine kinase activity and is a GTPase-activating protein for p21rac and other kinases. Two transcript variants encoding different isoforms have been found for this gene.[provided by RefSeq, Jan 2020]

BCR links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10093564).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BCR	NM_004327.4 link	c.344C>A	p.Ala115Asp	missense_variant	Exon 1 of 23	ENST00000305877.13	NP_004318.3	P11274-1
BCR	NM_021574.3 link	c.344C>A	p.Ala115Asp	missense_variant	Exon 1 of 22		NP_067585.2	P11274-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
BCR	ENST00000305877.13 link	c.344C>A	p.Ala115Asp	missense_variant	Exon 1 of 23	1	NM_004327.4	ENSP00000303507.8	P11274-1
BCR	ENST00000359540.7 link	c.344C>A	p.Ala115Asp	missense_variant	Exon 1 of 22	1		ENSP00000352535.3	P11274-2
BCR	ENST00000479188.5 link	n.129+1472C>A		intron_variant	Intron 1 of 4	4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

8.27e-7

AC:

AN:

1208540

Hom.:

Cov.:

AF XY:

0.00000170

AC XY:

AN XY:

588626

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000101

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.58

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.26

T;.

Eigen

Benign

-0.94

Eigen_PC

Benign

-0.95

FATHMM_MKL

Benign

0.063

LIST_S2

Benign

0.67

T;T

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.10

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.34

N;N

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.56

N;N

REVEL

Benign

0.040

Sift

Benign

0.097

T;D

Sift4G

Uncertain

0.059

T;D

Polyphen

0.0050

B;B

Vest4

0.14

MutPred

0.14

Gain of solvent accessibility (P = 0.0648);Gain of solvent accessibility (P = 0.0648);

MVP

0.28

MPC

0.59

ClinPred

0.078

GERP RS

1.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.13

gMVP

0.32

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over