Genetic Variant CCDC74B:p.Arg311His (chr2-130139568-C-T) – ACMG Classification: Likely_benign (-1 pts)

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_001258307.2(CCDC74B):c.932G>A(p.Arg311His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000421 in 1,613,384 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R311C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 1 hom., cov: 34)

Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

CCDC74B
NM_001258307.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.79

Publications

5 publications found

Variant links:

Genes affected

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

CCDC74B links:

MED15P9 (HGNC:):

MED15P9 links:

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

MED15P9 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.26551086).

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CCDC74B	NM_001258307.2	MANE Select	c.932G>A	p.Arg311His	missense	Exon 8 of 8	NP_001245236.1	Q96LY2-2
CCDC74B	NM_207310.4		c.1130G>A	p.Arg377His	missense	Exon 8 of 8	NP_997193.1	Q96LY2-1
CCDC74B	NR_165309.1		n.1215G>A		non_coding_transcript_exon	Exon 8 of 8

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CCDC74B	ENST00000409943.8	TSL:1 MANE Select	c.932G>A	p.Arg311His	missense	Exon 8 of 8	ENSP00000386294.3	Q96LY2-2
CCDC74B	ENST00000860854.1		c.1142G>A	p.Arg381His	missense	Exon 8 of 8	ENSP00000530913.1
CCDC74B	ENST00000944366.1		c.1142G>A	p.Arg381His	missense	Exon 8 of 8	ENSP00000614425.1

Frequencies

GnomAD3 genomes

AF:

0.000256

AC:

AN:

152258

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000916

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

GnomAD2 exomes

AF:

0.0000680

AC:

AN:

250084

AF XY:

0.0000221

show subpopulations

Gnomad AFR exome

AF:

0.000933

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000198

AC:

AN:

1461008

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

726794

show subpopulations

African (AFR)

AF:

0.000448

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86224

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52778

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5656

European-Non Finnish (NFE)

AF:

0.00000989

AC:

AN:

1111962

Other (OTH)

AF:

0.0000497

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000256

AC:

AN:

152376

Hom.:

Cov.:

AF XY:

0.000174

AC XY:

AN XY:

74510

show subpopulations

African (AFR)

AF:

0.000914

AC:

AN:

41586

American (AMR)

AF:

0.00

AC:

AN:

15312

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68044

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.518

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.000298

ESP6500AA

AF:

0.00114

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000741

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.20

CADD

Benign

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.057

Eigen

Uncertain

0.32

Eigen_PC

Benign

0.19

FATHMM_MKL

Benign

0.59

LIST_S2

Benign

0.72

M_CAP

Benign

0.073

MetaRNN

Benign

0.27

MetaSVM

Benign

-0.33

MutationAssessor

Benign

1.6

PhyloP100

1.8

PrimateAI

Benign

0.41

PROVEAN

Uncertain

-2.4

REVEL

Benign

0.19

Sift

Uncertain

0.0030

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.47

MVP

0.84

MPC

0.65

ClinPred

0.15

GERP RS

3.3

Varity_R

0.15

gMVP

0.064

Mutation Taster

=92/8

polymorphism

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over