1-66833619-T-C

Variant names:

• chr1-66833619-T-C
• rs201361281
• NM_024763.5:c.1979A>G

Variant summary

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

The NM_024763.5(DNAI4):​c.1979A>G​(p.Gln660Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,190 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q660P) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: DNAI4 NM_024763.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.48
• Publications: 1 publications found

Genes affected

DNAI4 (HGNC:26252): (dynein axonemal intermediate chain 4) Predicted to enable dynein heavy chain binding activity and dynein light chain binding activity. Predicted to be involved in axonemal dynein complex assembly and cilium movement. Predicted to act upstream of or within hematopoietic progenitor cell differentiation. Predicted to be located in axoneme; dynein axonemal particle; and motile cilium. Predicted to be part of axonemal dynein complex. [provided by Alliance of Genome Resources, Apr 2022]

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=0.30195135).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024763.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAI4	NM_024763.5	MANE Select	c.1979A>G	p.Gln660Arg	missense	Exon 13 of 17	NP_079039.4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DNAI4	ENST00000371026.8	TSL:1 MANE Select	c.1979A>G	p.Gln660Arg	missense	Exon 13 of 17	ENSP00000360065.3	Q5VTH9-1
	DNAI4	ENST00000908566.1		c.1892A>G	p.Gln631Arg	missense	Exon 12 of 16	ENSP00000578625.1
	DNAI4	ENST00000908565.1		c.1847A>G	p.Gln616Arg	missense	Exon 12 of 16	ENSP00000578624.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000798 AC: 2 AN: 250736 AF XY: 0.00000738

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000581

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461190 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726878

African (AFR) AF: 0.00 AC: 0 AN: 33450

American (AMR) AF: 0.0000448 AC: 2 AN: 44644

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26114

East Asian (EAS) AF: 0.00 AC: 0 AN: 39652

South Asian (SAS) AF: 0.00 AC: 0 AN: 86212

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53386

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111614

Other (OTH) AF: 0.00 AC: 0 AN: 60352

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.26
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.050	T
Eigen	Uncertain	0.37
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Uncertain	0.90	D
LIST_S2	Benign	0.76	T
M_CAP	Benign	0.030	D
MetaRNN	Benign	0.30	T
MetaSVM	Benign	-0.84	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		3.5
PrimateAI	Uncertain	0.52	T
PROVEAN	Uncertain	-2.4	N
REVEL	Benign	0.12
Sift	Benign	0.32	T
Sift4G	Benign	0.18	T
Polyphen		0.88	P
Vest4		0.59
MutPred		0.29		Gain of phosphorylation at S658 (P = 0.0733)
MVP		0.64
MPC		0.41
ClinPred		0.78	D
GERP RS		5.8
Varity_R		0.18
gMVP		0.33
Mutation Taster		=92/8	polymorphism

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: rs201361281; hg19: chr1-67299302;