Variant chr21-31671657-A-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_020706.2(SCAF4):c.3186T>G(p.Asp1062Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,613,582 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

SCAF4
NM_020706.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.72

Variant links:

Genes affected

SCAF4 (HGNC:19304): (SR-related CTD associated factor 4) This gene likely encodes a member of the arginine/serine-rich splicing factor family. A similar protein in Rat appears to bind the large subunit of RNA polymerase II and provide a link between transcription and pre-mRNA splicing. Alternatively spliced transcript variants have been described. [provided by RefSeq, Feb 2009]

SCAF4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.19571036).

BS2

High AC in GnomAdExome4 at 24 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SCAF4	NM_020706.2 linkuse as main transcript	c.3186T>G	p.Asp1062Glu	missense_variant	20/20	ENST00000286835.12	NP_065757.1	O95104-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
SCAF4	ENST00000286835.12 linkuse as main transcript	c.3186T>G	p.Asp1062Glu	missense_variant	20/20	1	NM_020706.2	ENSP00000286835.7	O95104-1
SCAF4	ENST00000434667.3 linkuse as main transcript	c.3141T>G	p.Asp1047Glu	missense_variant	19/19	1		ENSP00000402377.2	O95104-3
SCAF4	ENST00000399804.5 linkuse as main transcript	c.3120T>G	p.Asp1040Glu	missense_variant	20/20	1		ENSP00000382703.1	O95104-2

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151870

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251374

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135852

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1461712

Hom.:

Cov.:

AF XY:

0.0000193

AC XY:

AN XY:

727168

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000198

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000132

AC:

AN:

151870

Hom.:

Cov.:

AF XY:

0.0000270

AC XY:

AN XY:

74164

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 20, 2024

The c.3186T>G (p.D1062E) alteration is located in exon 20 (coding exon 20) of the SCAF4 gene. This alteration results from a T to G substitution at nucleotide position 3186, causing the aspartic acid (D) at amino acid position 1062 to be replaced by a glutamic acid (E). 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

Uncertain

0.43

BayesDel_addAF

Benign

-0.086

BayesDel_noAF

Benign

-0.30

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.065

T;.;.

Eigen

Benign

0.19

Eigen_PC

Uncertain

0.24

FATHMM_MKL

Benign

0.44

LIST_S2

Benign

0.75

T;T;T

M_CAP

Benign

0.019

MetaRNN

Benign

0.20

T;T;T

MetaSVM

Benign

-0.62

MutationAssessor

Benign

1.6

L;.;.

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-2.0

N;N;N

REVEL

Benign

0.12

Sift

Benign

0.033

D;D;D

Sift4G

Benign

0.22

T;T;T

Polyphen

0.99

D;B;.

Vest4

0.49

MutPred

0.22

Gain of helix (P = 0.0854);.;.;

MVP

0.57

MPC

0.22

ClinPred

0.34

GERP RS

4.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.7

Varity_R

0.19

gMVP

0.017

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over