chr11-103307831-G-T

Variant names:

• chr11-103307831-G-T
• rs778529441
• NM_001080463.2:c.11514G>T

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The ENST00000375735.7(DYNC2H1):​c.11493G>T​(p.Glu3831Asp) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000711 in 1,407,414 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. E3831E) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 7.1e-7 (0 hom.)
• Consequence: DYNC2H1 ENST00000375735.7 missense, splice_region
• Scores: Splicing: ADA: 0.9998
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.39
• Publications: 0 publications found

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]

DYNC2H1 Gene-Disease associations (from GenCC):

• asphyxiating thoracic dystrophy 3

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet, Ambry Genetics
• Jeune syndrome

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• short rib-polydactyly syndrome, Majewski type

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
• short rib-polydactyly syndrome, Verma-Naumoff type

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000375735.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DYNC2H1	NM_001080463.2	MANE Plus Clinical	c.11514G>T	p.Glu3838Asp	missense splice_region	Exon 79 of 90	NP_001073932.1
	DYNC2H1	NM_001377.3	MANE Select	c.11493G>T	p.Glu3831Asp	missense splice_region	Exon 78 of 89	NP_001368.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DYNC2H1	ENST00000650373.2	MANE Plus Clinical	c.11514G>T	p.Glu3838Asp	missense splice_region	Exon 79 of 90	ENSP00000497174.1
	DYNC2H1	ENST00000375735.7	TSL:1 MANE Select	c.11493G>T	p.Glu3831Asp	missense splice_region	Exon 78 of 89	ENSP00000364887.2
	DYNC2H1	ENST00000334267.11	TSL:1	c.2206-128112G>T		intron	N/A	ENSP00000334021.7

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.11e-7 AC: 1 AN: 1407414 Hom.: 0 Cov.: 24 AF XY: 0.00 AC XY: 0 AN XY: 698714

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 32248

American (AMR) AF: 0.0000245 AC: 1 AN: 40756

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25244

East Asian (EAS) AF: 0.00 AC: 0 AN: 38566

South Asian (SAS) AF: 0.00 AC: 0 AN: 80498

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 51622

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5680

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1074524

Other (OTH) AF: 0.00 AC: 0 AN: 58276

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.91
BayesDel_addAF	Uncertain	0.14	D
BayesDel_noAF	Uncertain	-0.040
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Benign	0.40	T
Eigen	Pathogenic	0.87
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.92	D
M_CAP	Uncertain	0.12	D
MetaRNN	Pathogenic	0.84	D
MetaSVM	Benign	-0.45	T
MutationAssessor	Pathogenic	3.3	M
PhyloP100		5.4
PrimateAI	Uncertain	0.77	T
PROVEAN	Uncertain	-2.8	D
REVEL	Uncertain	0.42
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.92
MutPred		0.71		Loss of ubiquitination at K3827 (P = 0.1016)
MVP		0.73
MPC		0.37
ClinPred		1.0	D
GERP RS		5.5
Varity_R		0.90
gMVP		0.80
Mutation Taster		=14/86	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	0.99
SpliceAI score (max)		0.85		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.85		Position offset: 0

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs778529441; hg19: chr11-103178560;