Variant chr21-31671676-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_020706.2(SCAF4):c.3167A>G(p.His1056Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,706 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SCAF4
NM_020706.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.31

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:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.294027).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SCAF4	NM_020706.2 linkuse as main transcript	c.3167A>G	p.His1056Arg	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.3167A>G	p.His1056Arg	missense_variant	20/20	1	NM_020706.2	ENSP00000286835.7	O95104-1
SCAF4	ENST00000434667.3 linkuse as main transcript	c.3122A>G	p.His1041Arg	missense_variant	19/19	1		ENSP00000402377.2	O95104-3
SCAF4	ENST00000399804.5 linkuse as main transcript	c.3101A>G	p.His1034Arg	missense_variant	20/20	1		ENSP00000382703.1	O95104-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000795

AC:

AN:

251452

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135902

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:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461706

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727172

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:

0.00000360

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

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

Aug 20, 2024

The c.3167A>G (p.H1056R) alteration is located in exon 20 (coding exon 20) of the SCAF4 gene. This alteration results from a A to G substitution at nucleotide position 3167, causing the histidine (H) at amino acid position 1056 to be replaced by an arginine (R). 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

0.73

BayesDel_addAF

Uncertain

0.026

BayesDel_noAF

Benign

-0.19

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.050

T;.;.

Eigen

Uncertain

0.64

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.88

D;D;D

M_CAP

Benign

0.016

MetaRNN

Benign

0.29

T;T;T

MetaSVM

Benign

-0.62

MutationAssessor

Benign

1.6

L;.;.

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-1.4

N;N;N

REVEL

Benign

0.23

Sift

Pathogenic

0.0

D;D;D

Sift4G

Benign

0.098

T;T;T

Polyphen

0.99

D;D;.

Vest4

0.51

MutPred

0.19

Gain of solvent accessibility (P = 0.1133);.;.;

MVP

0.56

MPC

0.29

ClinPred

0.42

GERP RS

5.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.47

gMVP

0.031

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