dbSNP rs766447651: BICD2:p.Glu848* (chr9-92715180-C-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PVS1_ModeratePM2

The NM_001003800.2(BICD2):c.2542G>T(p.Glu848*) variant causes a stop gained change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. E848E) has been classified as Benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

BICD2
NM_001003800.2 stop_gained

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.08

Publications

3 publications found

Variant links:

Genes affected

BICD2 (HGNC:17208): (BICD cargo adaptor 2) This gene is one of two human homologs of Drosophila bicaudal-D and a member of the Bicoid family. It has been implicated in dynein-mediated, minus end-directed motility along microtubules. It has also been reported to be a phosphorylation target of NIMA related kinase 8. Two alternative splice variants have been described. [provided by RefSeq, Jul 2008]

BICD2 Gene-Disease associations (from GenCC):

autosomal dominant childhood-onset proximal spinal muscular atrophy with contractures
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), G2P, Genomics England PanelApp

BICD2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PVS1

Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.0101 CDS is truncated, and there are 0 pathogenic variants in the truncated region.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BICD2	NM_001003800.2 link	c.2542G>T	p.Glu848*	stop_gained	Exon 7 of 7	ENST00000356884.11	NP_001003800.1	Q8TD16-2Q96FU2
BICD2	NM_015250.4 link	c.2469+73G>T		intron_variant	Intron 7 of 7		NP_056065.1	Q8TD16-1Q96FU2
BICD2	XM_017014551.2 link	c.2550+73G>T		intron_variant	Intron 7 of 7		XP_016870040.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BICD2	ENST00000356884.11 link	c.2542G>T	p.Glu848*	stop_gained	Exon 7 of 7	1	NM_001003800.2	ENSP00000349351.6		Q8TD16-2
BICD2	ENST00000375512.3 link	c.2469+73G>T		intron_variant	Intron 7 of 7	1		ENSP00000364662.3		Q8TD16-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1449894

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

719286

African (AFR)

AF:

0.00

AC:

AN:

33258

American (AMR)

AF:

0.00

AC:

AN:

44220

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25726

East Asian (EAS)

AF:

0.00

AC:

AN:

39408

South Asian (SAS)

AF:

0.00

AC:

AN:

85386

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52482

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5442

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1104210

Other (OTH)

AF:

0.00

AC:

AN:

59762

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.61

BayesDel_noAF

Pathogenic

0.63

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Pathogenic

1.0

Eigen_PC

Pathogenic

0.85

FATHMM_MKL

Pathogenic

0.99

PhyloP100

6.1

Vest4

0.42

GERP RS

4.4

Mutation Taster

=63/137

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over