NM_001258306.3:c.35C>A

Variant names:

• chr2-131528005-C-A
• rs767296333
• NM_001258306.3:c.35C>A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001258306.3(CCDC74A):​c.35C>A​(p.Pro12His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000152 in 1,314,336 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P12S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000015 (0 hom.)
• Consequence: CCDC74A NM_001258306.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0630
• Publications: 0 publications found

Genes affected

CCDC74A (HGNC:25197): (coiled-coil domain containing 74A)

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.22015652).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001258306.3. 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
	CCDC74A	NM_001258306.3	MANE Select	c.35C>A	p.Pro12His	missense	Exon 1 of 8	NP_001245235.1	Q96AQ1-2
	CCDC74A	NM_001349042.2		c.35C>A	p.Pro12His	missense	Exon 1 of 8	NP_001335971.1
	CCDC74A	NM_138770.4		c.35C>A	p.Pro12His	missense	Exon 1 of 8	NP_620125.1	Q96AQ1-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CCDC74A	ENST00000409856.8	TSL:1 MANE Select	c.35C>A	p.Pro12His	missense	Exon 1 of 8	ENSP00000387009.3	Q96AQ1-2
	CCDC74A	ENST00000295171.10	TSL:1	c.35C>A	p.Pro12His	missense	Exon 1 of 8	ENSP00000295171.6	Q96AQ1-1
	CCDC74A	ENST00000467992.6	TSL:1	c.35C>A	p.Pro12His	missense	Exon 1 of 7	ENSP00000444610.2	F5GZA4

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000152 AC: 2 AN: 1314336 Hom.: 0 Cov.: 30 AF XY: 0.00000312 AC XY: 2 AN XY: 640652

African (AFR) AF: 0.00 AC: 0 AN: 28810

American (AMR) AF: 0.00 AC: 0 AN: 20862

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19286

East Asian (EAS) AF: 0.00 AC: 0 AN: 35494

South Asian (SAS) AF: 0.00 AC: 0 AN: 65000

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 44728

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3674

European-Non Finnish (NFE) AF: 0.00000192 AC: 2 AN: 1042356

Other (OTH) AF: 0.00 AC: 0 AN: 54126

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Benign	-0.18	T
BayesDel_noAF	Benign	-0.49
CADD	Benign	19
DANN	Uncertain	0.99
DEOGEN2	Benign	0.049	T
Eigen	Benign	-0.091
Eigen_PC	Benign	-0.29
FATHMM_MKL	Benign	0.034	N
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.079	D
MetaRNN	Benign	0.22	T
MetaSVM	Benign	-0.92	T
MutationAssessor	Benign	0.90	L
PhyloP100		-0.063
PrimateAI	Uncertain	0.77	T
PROVEAN	Uncertain	-3.6	D
REVEL	Benign	0.066
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0030	D
Polyphen		1.0	D
Vest4		0.18
MutPred		0.18		Loss of glycosylation at P12 (P = 0.0091)
MVP		0.31
MPC		2.4
ClinPred		0.96	D
GERP RS		2.0
PromoterAI		-0.012	Neutral
Varity_R		0.20
gMVP		0.22
Mutation Taster		=91/9	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: rs767296333; hg19: chr2-132285578;