rs9871422

Positions:

• chr3-57470644-T-A
• chr3-57470644-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001366028.2(DNAH12):​c.1912-8A>T variant causes a splice region, splice polypyrimidine tract, intron 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. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000015 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: DNAH12 NM_001366028.2 splice_region, splice_polypyrimidine_tract, intron
• Scores: Splicing: ADA: 0.00001607
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.410

Genes affected

DNAH12 (HGNC:2943): (dynein axonemal heavy chain 12) Predicted to enable several functions, including ATP binding activity; dynein intermediate chain binding activity; and dynein light intermediate chain binding activity. Predicted to be involved in microtubule-based movement. Predicted to be located in cilium; cytoplasm; and microtubule. Predicted to be part of dynein complex. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.8).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DNAH12	NM_001366028.2	c.1912-8A>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000495027.6	NP_001352957.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DNAH12	ENST00000495027.6	c.1912-8A>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5	NM_001366028.2	ENSP00000418137	P1
DNAH12	ENST00000351747.6	c.1912-8A>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5		ENSP00000295937
DNAH12	ENST00000389536.8	c.1912-8A>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5		ENSP00000374187

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000146 AC: 2 AN: 1365656 Hom.: 0 Cov.: 32 AF XY: 0.00000149 AC XY: 1 AN XY: 673138

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: 0.00000187

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.80
CADD	Benign	6.7
DANN	Benign	0.57

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000016
dbscSNV1_RF	Benign	0.0020
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: rs9871422; hg19: chr3-57456371;