rs901629870

Positions:

• chr11-103165985-C-G

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 10P and 1B. PM2 PP5_Very_Strong BP4

The NM_001080463.2(DYNC2H1):​c.4699C>G​(p.Leu1567Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000218 in 1,379,080 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000022 (0 hom.)
• Consequence: DYNC2H1 NM_001080463.2 missense
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:4
• Conservation: PhyloP100: 2.58

Genes affected

DYNC2H1 (HGNC:2962): (dynein cytoplasmic 2 heavy chain 1) This gene encodes a large cytoplasmic dynein protein that is involved in retrograde transport in the cilium and has a role in intraflagellar transport, a process required for ciliary/flagellar assembly. Mutations in this gene cause a heterogeneous spectrum of conditions related to altered primary cilium function and often involve polydactyly, abnormal skeletogenesis, and polycystic kidneys. Alternative splicing results in multiple transcript variants encoding distinct proteins. [provided by RefSeq, Jan 2010]

ACMG classification

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 11-103165985-C-G is Pathogenic according to our data. Variant chr11-103165985-C-G is described in ClinVar as [Pathogenic]. Clinvar id is 446551.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-103165985-C-G is described in Lovd as [Likely_pathogenic].
• BP4: Computational evidence support a benign effect (MetaRNN=0.21131891). . Strength limited to SUPPORTING due to the PP5.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DYNC2H1	NM_001080463.2	c.4699C>G	p.Leu1567Val	missense_variant	31/90	ENST00000650373.2	NP_001073932.1
DYNC2H1	NM_001377.3	c.4699C>G	p.Leu1567Val	missense_variant	31/89	ENST00000375735.7	NP_001368.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DYNC2H1	ENST00000650373.2	c.4699C>G	p.Leu1567Val	missense_variant	31/90		NM_001080463.2	ENSP00000497174	A1
DYNC2H1	ENST00000375735.7	c.4699C>G	p.Leu1567Val	missense_variant	31/89	1	NM_001377.3	ENSP00000364887	P3
DYNC2H1	ENST00000334267.11	c.2205+31566C>G		intron_variant		1		ENSP00000334021
DYNC2H1	ENST00000649323.1	c.*2244C>G		3_prime_UTR_variant, NMD_transcript_variant	29/51			ENSP00000497581

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000218 AC: 3 AN: 1379080 Hom.: 0 Cov.: 30 AF XY: 0.00000442 AC XY: 3 AN XY: 679146

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000280

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000756

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:4

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Asphyxiating thoracic dystrophy 3 Pathogenic:2

Pathogenic, no assertion criteria provided	research	Dan Cohn Lab, University Of California Los Angeles	Jun 01, 2017	- -
Likely pathogenic, no assertion criteria provided	research	University of Washington Center for Mendelian Genomics, University of Washington	-	- -

not provided Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Dec 01, 2019

- -

Jeune thoracic dystrophy Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 03, 2023

This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1567 of the DYNC2H1 protein (p.Leu1567Val). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with short-rib thoracic dysplasia (PMID: 29068549, 34958143, 36599940). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 446551). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt DYNC2H1 protein function. For these reasons, this variant has been classified as Pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.10	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	18
DANN	Uncertain	1.0
DEOGEN2	Benign	0.23	T;T;.;.
Eigen	Benign	0.17
Eigen_PC	Benign	0.15
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.80	.;T;.;T
M_CAP	Benign	0.035	D
MetaRNN	Benign	0.21	T;T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Uncertain	2.1	M;M;M;M
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.58	T
PROVEAN	Benign	-1.9	N;.;.;N
REVEL	Benign	0.14
Sift	Uncertain	0.0060	D;.;.;D
Sift4G	Benign	0.18	T;.;.;T
Polyphen		0.89	P;P;D;D
Vest4		0.41
MutPred		0.33		Loss of ubiquitination at K1570 (P = 0.0853);Loss of ubiquitination at K1570 (P = 0.0853);Loss of ubiquitination at K1570 (P = 0.0853);Loss of ubiquitination at K1570 (P = 0.0853);
MVP		0.55
MPC		0.27
ClinPred		0.82	D
GERP RS		2.3
Varity_R		0.15
gMVP		0.44

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: rs901629870; hg19: chr11-103036714;