Genetic Variant SCAF8:p.Ala189Glu (chr6-154795099-C-A) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

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

The NM_014892.5(SCAF8):c.566C>A(p.Ala189Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

SCAF8
NM_014892.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.84

Variant links:

Genes affected

SCAF8 (HGNC:20959): (SR-related CTD associated factor 8) Enables RNA binding activity and RNA polymerase II C-terminal domain phosphoserine binding activity. Involved in negative regulation of termination of RNA polymerase II transcription, poly(A)-coupled and positive regulation of DNA-templated transcription, elongation. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

SCAF8 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=0.31442827).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCAF8	NM_014892.5 link	c.566C>A	p.Ala189Glu	missense_variant	Exon 6 of 20	ENST00000367178.8	NP_055707.3	Q9UPN6-1B7Z3A4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SCAF8	ENST00000367178.8 link	c.566C>A	p.Ala189Glu	missense_variant	Exon 6 of 20	2	NM_014892.5	ENSP00000356146.3	Q9UPN6-1
SCAF8	ENST00000417268.3 link	c.800C>A	p.Ala267Glu	missense_variant	Exon 7 of 21	2		ENSP00000413098.2	A0A0A0MT33
SCAF8	ENST00000367186.7 link	c.764C>A	p.Ala255Glu	missense_variant	Exon 8 of 22	2		ENSP00000356154.4	Q9UPN6-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000399

AC:

AN:

250606

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135506

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000291

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461058

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726852

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

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

Apr 01, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.566C>A (p.A189E) alteration is located in exon 6 (coding exon 6) of the SCAF8 gene. This alteration results from a C to A substitution at nucleotide position 566, causing the alanine (A) at amino acid position 189 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

Pathogenic

0.69

BayesDel_addAF

Benign

-0.042

BayesDel_noAF

Benign

-0.22

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.24

T;.;T

Eigen

Uncertain

0.42

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.97

D;D;D

M_CAP

Benign

0.023

MetaRNN

Benign

0.31

T;T;T

MetaSVM

Benign

-0.91

MutationAssessor

Uncertain

2.5

M;.;.

PrimateAI

Uncertain

0.56

PROVEAN

Uncertain

-2.9

D;D;.

REVEL

Benign

0.15

Sift

Uncertain

0.0020

D;D;.

Sift4G

Uncertain

0.0050

D;D;D

Polyphen

0.74

P;.;.

Vest4

0.50

MutPred

0.34

.;Gain of relative solvent accessibility (P = 0.1259);.;

MVP

0.22

MPC

0.82

ClinPred

0.84

GERP RS

4.7

Varity_R

0.71

gMVP

0.82

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

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