17-74281941-G-C

Position:

• chr17-74281941-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_023036.6(DNAI2):​c.124G>C​(p.Val42Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DNAI2 NM_023036.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.553

Genes affected

DNAI2 (HGNC:18744): (dynein axonemal intermediate chain 2) The protein encoded by this gene belongs to the dynein intermediate chain family, and is part of the dynein complex of respiratory cilia and sperm flagella. Mutations in this gene are associated with primary ciliary dyskinesia type 9. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Mar 2010]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.11173466).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNAI2	NM_023036.6	c.124G>C	p.Val42Leu	missense_variant	2/14	ENST00000311014.11	NP_075462.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNAI2	ENST00000311014.11	c.124G>C	p.Val42Leu	missense_variant	2/14	1	NM_023036.6	ENSP00000308312	P2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.081	T
BayesDel_noAF	Benign	-0.35
CADD	Benign	14
DANN	Uncertain	0.99
DEOGEN2	Benign	0.016	.;T;T;T
Eigen	Benign	-0.42
Eigen_PC	Benign	-0.36
FATHMM_MKL	Benign	0.26	N
LIST_S2	Benign	0.85	T;.;T;T
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.11	T;T;T;T
MetaSVM	Benign	-0.83	T
MutationAssessor	Benign	1.5	L;L;L;.
MutationTaster	Benign	1.0	D;N;N;N;N
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-1.4	.;N;N;.
REVEL	Benign	0.055
Sift	Uncertain	0.017	.;D;D;.
Sift4G	Uncertain	0.060	T;T;T;T
Polyphen		0.028	.;B;B;.
Vest4		0.27
MutPred		0.32		Gain of loop (P = 0.0166);Gain of loop (P = 0.0166);Gain of loop (P = 0.0166);.;
MVP		0.61
MPC		0.25
ClinPred		0.59	D
GERP RS		2.1
Varity_R		0.087
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: rs151176313; hg19: chr17-72278080;