2-130139636-C-T

Variant names:

• chr2-130139636-C-T
• rs1284763648
• NM_001258307.2:c.864G>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_001258307.2(CCDC74B):​c.864G>A​(p.Gln288Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,254 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.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 34)
• Consequence: CCDC74B NM_001258307.2 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.409
• Publications: 0 publications found

Genes affected

CCDC74B (HGNC:25267): (coiled-coil domain containing 74B)

MED15P9 (HGNC:):

MED15P9 (HGNC:44130): (mediator complex subunit 15 pseudogene 9)

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.61).
• BP7: Synonymous conserved (PhyloP=0.409 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001258307.2. 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
	CCDC74B	NM_001258307.2	MANE Select	c.864G>A	p.Gln288Gln	synonymous	Exon 8 of 8	NP_001245236.1	Q96LY2-2
	CCDC74B	NM_207310.4		c.1062G>A	p.Gln354Gln	synonymous	Exon 8 of 8	NP_997193.1	Q96LY2-1
	CCDC74B	NR_165309.1		n.1147G>A		non_coding_transcript_exon	Exon 8 of 8

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCDC74B	ENST00000409943.8	TSL:1 MANE Select	c.864G>A	p.Gln288Gln	synonymous	Exon 8 of 8	ENSP00000386294.3	Q96LY2-2
	CCDC74B	ENST00000860854.1		c.1074G>A	p.Gln358Gln	synonymous	Exon 8 of 8	ENSP00000530913.1
	CCDC74B	ENST00000944366.1		c.1074G>A	p.Gln358Gln	synonymous	Exon 8 of 8	ENSP00000614425.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152254 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152254 Hom.: 0 Cov.: 34 AF XY: 0.00 AC XY: 0 AN XY: 74384

African (AFR) AF: 0.00 AC: 0 AN: 41464

American (AMR) AF: 0.00 AC: 0 AN: 15294

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5194

South Asian (SAS) AF: 0.00 AC: 0 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10630

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68046

Other (OTH) AF: 0.00 AC: 0 AN: 2094

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
BayesDel_noAF	Benign	-0.61
CADD	Benign	5.9
DANN	Benign	0.76
PhyloP100		0.41
Mutation Taster		=100/0	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: rs1284763648; hg19: chr2-130897209;