Genetic Variant DOC2B:p.Ala295Ser (chr17-156260-C-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_003585.5(DOC2B):c.883G>T(p.Ala295Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,234 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. A295T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 34)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

DOC2B
NM_003585.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.76

Publications

3 publications found

Variant links:

Genes affected

DOC2B (HGNC:2986): (double C2 domain beta) There are at least two protein isoforms of the Double C2 protein, namely alpha (DOC2A) and beta (DOC2B), which contain two C2-like domains. DOC2A and DOC2B are encoded by different genes; these genes are at times confused with the unrelated DAB2 gene which was initially named DOC-2. DOC2B is expressed ubiquitously and is suggested to be involved in Ca(2+)-dependent intracellular vesicle trafficking in various types of cells. [provided by RefSeq, Jul 2008]

DOC2B links:

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ACMG classification

Classification was made for transcript

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_003585.5. 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
	DOC2B	NM_003585.5	MANE Select	c.883G>T	p.Ala295Ser	missense	Exon 6 of 9	NP_003576.2	Q14184

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
DOC2B	ENST00000613549.3	TSL:1 MANE Select	c.883G>T	p.Ala295Ser	missense	Exon 6 of 9	ENSP00000482950.1	Q14184
DOC2B	ENST00000697390.1		c.910G>T	p.Ala304Ser	missense	Exon 7 of 10	ENSP00000513293.1	A0A8V8TML1
DOC2B	ENST00000952977.1		c.883G>T	p.Ala295Ser	missense	Exon 6 of 9	ENSP00000623036.1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152234

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1399178

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

690138

African (AFR)

AF:

0.00

AC:

AN:

31586

American (AMR)

AF:

0.00

AC:

AN:

35640

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25154

East Asian (EAS)

AF:

0.00

AC:

AN:

35714

South Asian (SAS)

AF:

0.00

AC:

AN:

79208

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49152

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5694

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1079006

Other (OTH)

AF:

0.00

AC:

AN:

58024

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152234

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74372

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41460

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000192

AC:

AN:

5202

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

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:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.43

BayesDel_addAF

Benign

-0.036

BayesDel_noAF

Benign

-0.29

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.33

Eigen

Uncertain

0.66

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.049

MetaRNN

Uncertain

0.45

MetaSVM

Uncertain

-0.032

PhyloP100

5.8

PrimateAI

Uncertain

0.74

Sift4G

Benign

0.072

Vest4

0.56

MutPred

0.33

Gain of disorder (P = 0.0412)

MVP

0.62

ClinPred

0.98

GERP RS

4.9

Varity_R

0.12

gMVP

0.36

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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over