rs200570160

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001378.3(DYNC1I2):​c.224T>C​(p.Ile75Thr) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000147 in 1,586,188 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/24 in silico tools predict 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

DYNC1I2
NM_001378.3 missense, splice_region

Scores

5
14
Splicing: ADA: 0.00005226
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.99

Publications

0 publications found
Variant links:
Genes affected
DYNC1I2 (HGNC:2964): (dynein cytoplasmic 1 intermediate chain 2) This gene encodes a member of the dynein intermediate chain family. The encoded protein is a non-catalytic component of the cytoplasmic dynein 1 complex, which acts as a retrograde microtubule motor to transport organelles and vesicles. A pseudogene of this gene is located on chromosome 10. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2012]
DYNC1I2 Gene-Disease associations (from GenCC):
  • neurodevelopmental disorder with microcephaly and structural brain anomalies
    Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.1529822).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DYNC1I2NM_001378.3 linkc.224T>C p.Ile75Thr missense_variant, splice_region_variant Exon 3 of 18 ENST00000397119.8 NP_001369.1 Q13409-1A0A140VKE9

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DYNC1I2ENST00000397119.8 linkc.224T>C p.Ile75Thr missense_variant, splice_region_variant Exon 3 of 18 1 NM_001378.3 ENSP00000380308.3 Q13409-1

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152124
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000193
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000118
Gnomad OTH
AF:
0.000478
GnomAD2 exomes
AF:
0.0000612
AC:
13
AN:
212470
AF XY:
0.0000615
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000118
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000151
AC:
216
AN:
1434064
Hom.:
0
Cov.:
29
AF XY:
0.000156
AC XY:
111
AN XY:
711410
show subpopulations
African (AFR)
AF:
0.000152
AC:
5
AN:
32924
American (AMR)
AF:
0.00
AC:
0
AN:
41336
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25556
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39038
South Asian (SAS)
AF:
0.0000365
AC:
3
AN:
82100
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52350
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5726
European-Non Finnish (NFE)
AF:
0.000182
AC:
199
AN:
1095584
Other (OTH)
AF:
0.000151
AC:
9
AN:
59450
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
10
19
29
38
48
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:
0.000112
AC:
17
AN:
152124
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
74320
show subpopulations
African (AFR)
AF:
0.000193
AC:
8
AN:
41438
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000118
AC:
8
AN:
67966
Other (OTH)
AF:
0.000478
AC:
1
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.543
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000106
Hom.:
0
Bravo
AF:
0.0000982
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000244
AC:
2
ExAC
AF:
0.0000665
AC:
8

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 06, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.224T>C (p.I75T) alteration is located in exon 3 (coding exon 2) of the DYNC1I2 gene. This alteration results from a T to C substitution at nucleotide position 224, causing the isoleucine (I) at amino acid position 75 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.20
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
22
DANN
Benign
0.92
DEOGEN2
Benign
0.026
T;.;T;.;T;.;.;T;.;T;.;.;T;T;T;.;.;.;T
Eigen
Benign
-0.37
Eigen_PC
Benign
-0.15
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.94
D;.;.;T;T;D;D;T;D;T;T;T;D;T;T;T;D;D;D
M_CAP
Benign
0.026
D
MetaRNN
Benign
0.15
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.73
T
MutationAssessor
Benign
0.34
.;N;N;N;.;N;N;.;N;N;.;N;.;.;.;.;.;.;.
PhyloP100
6.0
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-2.0
N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N;N
REVEL
Benign
0.094
Sift
Uncertain
0.012
D;T;T;D;D;T;T;D;T;T;D;T;D;T;D;D;D;D;D
Sift4G
Uncertain
0.051
T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T;T
Polyphen
0.029, 0.0090, 0.0080
.;B;B;.;.;B;B;.;B;B;.;.;.;.;.;.;.;.;.
Vest4
0.30, 0.26, 0.26, 0.28, 0.27, 0.21, 0.26, 0.26
MVP
0.82
MPC
0.65
ClinPred
0.076
T
GERP RS
4.6
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.6
Varity_R
0.039
gMVP
0.056
Mutation Taster
=74/26
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000052
dbscSNV1_RF
Benign
0.010
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: rs200570160; hg19: chr2-172549402; API