DRC1 p.Ala575Ala

Variant names:

• chr2-26453352-G-G
• NM_145038.5:c.

Your query was ambiguous. Multiple possible variants found:

• chr2-26453353--
• chr2-26453355-G-T
• chr2-26453355-G-C
• chr2-26453355-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_145038.5(DRC1):​c. variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: DRC1 NM_145038.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.16
• Publications: 0 publications found

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]

DRC1 Gene-Disease associations (from GenCC):

• primary ciliary dyskinesia 21

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: ClinGen, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
• primary ciliary dyskinesia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• spermatogenic failure 80

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_145038.5. 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
	DRC1	NM_145038.5	MANE Select	c.		intron	N/A	NP_659475.2	Q96MC2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DRC1	ENST00000288710.7	TSL:2 MANE Select	c.		splice_donor intron	N/A	ENSP00000288710.2	Q96MC2
	DRC1	ENST00000868388.1		c.		splice_donor intron	N/A	ENSP00000538447.1
	DRC1	ENST00000941553.1		c.		splice_donor intron	N/A	ENSP00000611612.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		-3.2

Splicing

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr2-26676220;