chr2-26444262-A-C

Position:

• chr2-26444262-A-C

Variant summary

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

The NM_145038.5(DRC1):​c.1069A>C​(p.Lys357Gln) 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. 13/21 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: DRC1 NM_145038.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.89

Genes affected

DRC1 (HGNC:24245): (dynein regulatory complex subunit 1) This gene encodes a central component of the nexin-dynein complex (N-DRC), which regulates the assembly of ciliary dynein. Mutations in this gene can cause ciliary dyskinesia. [provided by RefSeq, Aug 2015]

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=0.22091144).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DRC1	NM_145038.5	c.1069A>C	p.Lys357Gln	missense_variant	9/17	ENST00000288710.7	NP_659475.2
DRC1	XM_047446339.1	c.49A>C	p.Lys17Gln	missense_variant	2/10		XP_047302295.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DRC1	ENST00000288710.7	c.1069A>C	p.Lys357Gln	missense_variant	9/17	2	NM_145038.5	ENSP00000288710	P1

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	0.13
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	21
DANN	Uncertain	0.99
DEOGEN2	Benign	0.0092	T
Eigen	Benign	0.061
Eigen_PC	Benign	0.12
FATHMM_MKL	Uncertain	0.82	D
LIST_S2	Benign	0.69	T
M_CAP	Benign	0.0061	T
MetaRNN	Benign	0.22	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.8	L
MutationTaster	Benign	0.64	P
PrimateAI	Benign	0.39	T
PROVEAN	Uncertain	-2.6	D
REVEL	Benign	0.045
Sift	Benign	0.048	D
Sift4G	Uncertain	0.046	D
Polyphen		0.62	P
Vest4		0.22
MutPred		0.26		Gain of ubiquitination at K360 (P = 0.0393);
MVP		0.22
MPC		0.16
ClinPred		0.95	D
GERP RS		4.2
Varity_R		0.22
gMVP		0.10

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		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: rs3795958; hg19: chr2-26667130;