rs886050377

Variant names:

• chr14-102050105-C-G
• rs886050377
• NM_001376.5:c.13719C>G

Your query was ambiguous. Multiple possible variants found:

• chr14-102050105-C-G
• chr14-102050105-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001376.5(DYNC1H1):​c.13719C>G​(p.Asn4573Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000699 in 1,430,552 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N4573S) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 7.0e-7 (0 hom.)
• Consequence: DYNC1H1 NM_001376.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.19
• Publications: 1 publications found

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]

DYNC1H1 Gene-Disease associations (from GenCC):

• autosomal dominant childhood-onset proximal spinal muscular atrophy without contractures

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Genomics England PanelApp
• intellectual disability, autosomal dominant 13

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, G2P, Labcorp Genetics (formerly Invitae)
• neuronopathy, distal hereditary motor

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• Charcot-Marie-Tooth disease axonal type 2O

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
• autosomal dominant non-syndromic intellectual disability

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000293472 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.34778154).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DYNC1H1	NM_001376.5	c.13719C>G	p.Asn4573Lys	missense_variant	Exon 77 of 78	ENST00000360184.10	NP_001367.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DYNC1H1	ENST00000360184.10	c.13719C>G	p.Asn4573Lys	missense_variant	Exon 77 of 78	1	NM_001376.5	ENSP00000348965.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.99e-7 AC: 1 AN: 1430552 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 711798

African (AFR) AF: 0.00 AC: 0 AN: 33352

American (AMR) AF: 0.00 AC: 0 AN: 41324

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25784

East Asian (EAS) AF: 0.0000378 AC: 1 AN: 26474

South Asian (SAS) AF: 0.00 AC: 0 AN: 85634

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 50384

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5744

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1103242

Other (OTH) AF: 0.00 AC: 0 AN: 58614

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Charcot-Marie-Tooth disease axonal type 2O Uncertain:1

Jan 10, 2017

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In summary, this variant is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C65"). This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a DYNC1H1-related disease. This sequence change replaces asparagine with lysine at codon 4573 of the DYNC1H1 protein (p.Asn4573Lys). The asparagine residue is highly conserved and there is a moderate physicochemical difference between asparagine and lysine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.77
BayesDel_addAF	Benign	-0.19	T
BayesDel_noAF	Benign	-0.52
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.31	T;.
Eigen	Benign	0.11
Eigen_PC	Benign	0.10
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.91	D;D
M_CAP	Benign	0.012	T
MetaRNN	Benign	0.35	T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.7	L;.
PhyloP100		2.2
PrimateAI	Uncertain	0.69	T
PROVEAN	Uncertain	-4.2	D;.
REVEL	Benign	0.13
Sift	Benign	0.15	T;.
Polyphen		0.95	P;.
Vest4		0.66
MutPred		0.43		Loss of stability (P = 0.0193);.;
MVP		0.54
MPC		1.1
ClinPred		0.95	D
GERP RS		2.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.75
gMVP		0.62
Mutation Taster		=13/87	disease causing

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

Other links and lift over

dbSNP: rs886050377; hg19: chr14-102516442;