rs149581331

chr14-102016076-G-Achr14-102016076-G-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2 BP4_Strong BP6_Very_Strong BS1 BS2

The NM_001376.5(DYNC1H1):c.7463G>A(p.Arg2488His) variant causes a missense change. The variant allele was found at a frequency of 0.0002 in 1,608,256 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2488C) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.00022 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00020 (0 hom.)
• Consequence: DYNC1H1 NM_001376.5 missense
• Clinical Significance: Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6
• Conservation: PhyloP100: 4.06

Genes affected

DYNC1H1 (HGNC:2961): (dynein cytoplasmic 1 heavy chain 1) Dyneins are a group of microtubule-activated ATPases that function as molecular motors. They are divided into two subgroups of axonemal and cytoplasmic dyneins. The cytoplasmic dyneins function in intracellular motility, including retrograde axonal transport, protein sorting, organelle movement, and spindle dynamics. Molecules of conventional cytoplasmic dynein are comprised of 2 heavy chain polypeptides and a number of intermediate and light chains.This gene encodes a member of the cytoplasmic dynein heavy chain family. [provided by RefSeq, Oct 2008]

ACMG classification

Verdict is Benign. Variant got -19 ACMG points.

• PP2: Missense variant where missense usually causes diseases, DYNC1H1
• BP4: Computational evidence support a benign effect (MetaRNN=0.010270476).
• BP6: Variant 14-102016076-G-A is Benign according to our data. Variant chr14-102016076-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 239003.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BS1: Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000223 (34/152326) while in subpopulation EAS AF= 0.0054 (28/5186). AF 95% confidence interval is 0.00384. There are 0 homozygotes in gnomad4. There are 12 alleles in male gnomad4 subpopulation. This position pass quality control queck.
• BS2: High AC in GnomAd at 34 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
DYNC1H1	NM_001376.5	c.7463G>A	p.Arg2488His	missense_variant	36/78	ENST00000360184.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
DYNC1H1	ENST00000360184.10	c.7463G>A	p.Arg2488His	missense_variant	36/78	1	NM_001376.5	P1

Frequencies

GnomAD3 genomes AF: 0.000223 AC: 34 AN: 152208 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00539

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000591 AC: 141 AN: 238480 Hom.: 0 AF XY: 0.000612 AC XY: 79 AN XY: 129038

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000299

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00747

Gnomad SAS exome AF: 0.000205

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000186

Gnomad OTH exome AF: 0.000170

GnomAD4 exome AF: 0.000198 AC: 288 AN: 1455930 Hom.: 0 Cov.: 32 AF XY: 0.000184 AC XY: 133 AN XY: 723860

Gnomad4 AFR exome AF: 0.0000300

Gnomad4 AMR exome AF: 0.0000227

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00506

Gnomad4 SAS exome AF: 0.0000586

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000153

Gnomad4 OTH exome AF: 0.00108

GnomAD4 genome AF: 0.000223 AC: 34 AN: 152326 Hom.: 0 Cov.: 32 AF XY: 0.000161 AC XY: 12 AN XY: 74488

Gnomad4 AFR AF: 0.0000722

Gnomad4 AMR AF: 0.0000654

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00540

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000974 Hom.: 0

Bravo AF: 0.000298

ExAC AF: 0.000503 AC: 61

Asia WGS AF: 0.00433 AC: 15 AN: 3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Charcot-Marie-Tooth disease axonal type 2O Benign:2

Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 24, 2024	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Inborn genetic diseases Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 15, 2017

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Jul 27, 2018

- -

Autosomal dominant cerebellar ataxia Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Autosomal dominant childhood-onset proximal spinal muscular atrophy without contractures;C3280220:Charcot-Marie-Tooth disease axonal type 2O;C3281202:Intellectual disability, autosomal dominant 13 Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Fulgent Genetics, Fulgent Genetics

Sep 29, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.47	T
BayesDel_noAF	Benign	-0.45
Cadd	Uncertain	24
Dann	Uncertain	1.0
DEOGEN2	Benign	0.37	T
Eigen	Benign	-0.0066
Eigen_PC	Benign	0.20
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.95	D
MetaRNN	Benign	0.010	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.46	N
MutationTaster	Benign	1.0	D
PrimateAI	Uncertain	0.59	T
PROVEAN	Benign	-1.5	N
REVEL	Benign	0.098
Sift	Benign	0.16	T
Polyphen		0.0010	B
Vest4		0.51
MVP		0.43
MPC		1.4
ClinPred		0.035	T
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.095
gMVP		0.60

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

LitVar

Other links and lift over

dbSNP: rs149581331; hg19: chr14-102482413; COSMIC: COSV64134787; COSMIC: COSV64134787;