dbSNP rs1166002350: SCFD1:p.Ala206Asp (chr14-30649531-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_016106.4(SCFD1):c.617C>A(p.Ala206Asp) variant causes a missense change. The variant allele was found at a frequency of 0.0000014 in 1,425,002 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SCFD1
NM_016106.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.95

Publications

0 publications found

Variant links:

Genes affected

SCFD1 (HGNC:20726): (sec1 family domain containing 1) Predicted to enable syntaxin binding activity. Involved in negative regulation of autophagosome assembly; regulation of protein transport; and response to toxic substance. Located in cis-Golgi network. [provided by Alliance of Genome Resources, Apr 2022]

SCFD1 links:

ENSG00000301732 (HGNC:):

ENSG00000301732 links:

Genome browser will be placed here

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;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCFD1	NM_016106.4 link	c.617C>A	p.Ala206Asp	missense_variant	Exon 8 of 25	ENST00000458591.7	NP_057190.2	Q8WVM8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCFD1	ENST00000458591.7 link	c.617C>A	p.Ala206Asp	missense_variant	Exon 8 of 25	1	NM_016106.4	ENSP00000390783.2		Q8WVM8-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000137

AC:

AN:

218694

AF XY:

0.0000252

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000291

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000140

AC:

AN:

1425002

Hom.:

Cov.:

AF XY:

0.00000282

AC XY:

AN XY:

709160

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

30594

American (AMR)

AF:

0.00

AC:

AN:

35788

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25298

East Asian (EAS)

AF:

0.00

AC:

AN:

37504

South Asian (SAS)

AF:

0.00

AC:

AN:

80398

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53124

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5690

European-Non Finnish (NFE)

AF:

0.00000182

AC:

AN:

1097778

Other (OTH)

AF:

0.00

AC:

AN:

58828

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 26, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.617C>A (p.A206D) alteration is located in exon 8 (coding exon 8) of the SCFD1 gene. This alteration results from a C to A substitution at nucleotide position 617, causing the alanine (A) at amino acid position 206 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.88

BayesDel_addAF

Pathogenic

0.33

BayesDel_noAF

Pathogenic

0.23

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.25

T;.;T;.;.;T

Eigen

Uncertain

0.30

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;D;D;D;D;D

M_CAP

Benign

0.050

MetaRNN

Uncertain

0.48

T;T;T;T;T;T

MetaSVM

Uncertain

-0.24

MutationAssessor

Benign

0.90

L;.;.;.;.;.

PhyloP100

6.9

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-1.0

N;N;N;N;N;N

REVEL

Uncertain

0.44

Sift

Uncertain

0.017

D;D;T;T;D;T

Sift4G

Benign

0.19

T;D;T;D;D;D

Polyphen

0.20

B;.;.;.;.;.

Vest4

0.88

MutPred

0.42

Gain of solvent accessibility (P = 0.1422);.;.;.;.;.;

MVP

0.83

MPC

0.71

ClinPred

0.57

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.43

gMVP

0.82

Mutation Taster

=59/41

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over