rs371559371

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001003800.2(BICD2):​c.240+8G>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000187 in 1,506,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0010 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000092 ( 0 hom. )

Consequence

BICD2
NM_001003800.2 splice_region, intron

Scores

2
Splicing: ADA: 0.0008808
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.463

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.67).
BP6
Variant 9-92764497-C-A is Benign according to our data. Variant chr9-92764497-C-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 474274.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 = 0.00104 (158/152178) while in subpopulation AFR AF = 0.00351 (146/41546). AF 95% confidence interval is 0.00305. There are 0 homozygotes in GnomAd4. There are 73 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High AC in GnomAd4 at 158 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001003800.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BICD2
NM_001003800.2
MANE Select
c.240+8G>T
splice_region intron
N/ANP_001003800.1
BICD2
NM_015250.4
c.240+8G>T
splice_region intron
N/ANP_056065.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
BICD2
ENST00000356884.11
TSL:1 MANE Select
c.240+8G>T
splice_region intron
N/AENSP00000349351.6
BICD2
ENST00000375512.3
TSL:1
c.240+8G>T
splice_region intron
N/AENSP00000364662.3

Frequencies

GnomAD3 genomes
AF:
0.00104
AC:
158
AN:
152062
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00352
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000720
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.000139
AC:
16
AN:
115202
AF XY:
0.0000320
show subpopulations
Gnomad AFR exome
AF:
0.00363
Gnomad AMR exome
AF:
0.000150
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000236
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000916
AC:
124
AN:
1353918
Hom.:
0
Cov.:
31
AF XY:
0.0000661
AC XY:
44
AN XY:
665210
show subpopulations
African (AFR)
AF:
0.00389
AC:
108
AN:
27772
American (AMR)
AF:
0.000128
AC:
4
AN:
31366
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24034
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30606
South Asian (SAS)
AF:
0.00
AC:
0
AN:
75408
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46846
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5562
European-Non Finnish (NFE)
AF:
0.00000189
AC:
2
AN:
1056334
Other (OTH)
AF:
0.000179
AC:
10
AN:
55990
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
6
13
19
26
32
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00104
AC:
158
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.000981
AC XY:
73
AN XY:
74428
show subpopulations
African (AFR)
AF:
0.00351
AC:
146
AN:
41546
American (AMR)
AF:
0.000719
AC:
11
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5142
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67970
Other (OTH)
AF:
0.000473
AC:
1
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.512
Heterozygous variant carriers
0
7
14
21
28
35
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000608
Hom.:
1
Bravo
AF:
0.00102

ClinVar

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

Submissions by phenotype

not specified Benign:1
Dec 26, 2017
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease.

Autosomal dominant childhood-onset proximal spinal muscular atrophy with contractures Benign:1
Jan 11, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.67
CADD
Benign
11
DANN
Benign
0.84
PhyloP100
0.46
PromoterAI
0.0055
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00088
dbscSNV1_RF
Benign
0.0
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

Other links and lift over

dbSNP: rs371559371; hg19: chr9-95526779; API