Genetic Variant SCAF8:p.Arg407His (chr6-154808792-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_014892.5(SCAF8):c.1220G>A(p.Arg407His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000108 in 1,605,586 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00031 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000087 ( 1 hom. )

Consequence

SCAF8
NM_014892.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.29

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.042277545).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCAF8	NM_014892.5 link	c.1220G>A	p.Arg407His	missense_variant	Exon 11 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.1220G>A	p.Arg407His	missense_variant	Exon 11 of 20	2	NM_014892.5	ENSP00000356146.3	Q9UPN6-1
SCAF8	ENST00000417268.3 link	c.1454G>A	p.Arg485His	missense_variant	Exon 12 of 21	2		ENSP00000413098.2	A0A0A0MT33
SCAF8	ENST00000367186.7 link	c.1418G>A	p.Arg473His	missense_variant	Exon 13 of 22	2		ENSP00000356154.4	Q9UPN6-2

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152156

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00106

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000168

AC:

AN:

250530

Hom.:

AF XY:

0.000185

AC XY:

AN XY:

135356

show subpopulations

Gnomad AFR exome

AF:

0.000926

Gnomad AMR exome

AF:

0.000174

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000657

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000882

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000874

AC:

127

AN:

1453312

Hom.:

Cov.:

AF XY:

0.000101

AC XY:

AN XY:

723620

show subpopulations

Gnomad4 AFR exome

AF:

0.00159

Gnomad4 AMR exome

AF:

0.000157

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000651

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000453

Gnomad4 OTH exome

AF:

0.0000998

GnomAD4 genome

AF:

0.000309

AC:

AN:

152274

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.00106

Gnomad4 AMR

AF:

0.000196

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000270

Hom.:

Bravo

AF:

0.000385

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000198

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 02, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1220G>A (p.R407H) alteration is located in exon 11 (coding exon 11) of the SCAF8 gene. This alteration results from a G to A substitution at nucleotide position 1220, causing the arginine (R) at amino acid position 407 to be replaced by a histidine (H). 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

Benign

0.28

BayesDel_addAF

Benign

-0.40

BayesDel_noAF

Benign

-0.41

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.20

T;.;T

Eigen

Benign

0.17

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.93

D;D;D

M_CAP

Benign

0.0078

MetaRNN

Benign

0.042

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.34

N;.;.

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-2.1

N;N;.

REVEL

Benign

0.11

Sift

Benign

0.051

T;D;.

Sift4G

Benign

0.37

T;T;T

Polyphen

0.0080

B;.;.

Vest4

0.37

MVP

0.24

MPC

0.88

ClinPred

0.038

GERP RS

5.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.091

gMVP

0.46

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