Genetic Variant MFHAS1:p.Pro840Ala (chr8-8890541-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_004225.3(MFHAS1):c.2518C>G(p.Pro840Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,066 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000012 ( 1 hom. )

Consequence

MFHAS1
NM_004225.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.39

Publications

0 publications found

Variant links:

Genes affected

MFHAS1 (HGNC:16982): (multifunctional ROCO family signaling regulator 1) Identified in a human 8p amplicon, this gene is a potential oncogene whose expression is enhanced in some malignant fibrous histiocytomas (MFH). The primary structure of its product includes an ATP/GTP-binding site, three leucine zipper domains, and a leucine-rich tandem repeat, which are structural or functional elements for interactions among proteins related to the cell cycle, and which suggest that overexpression might be oncogenic with respect to MFH. [provided by RefSeq, Jul 2008]

MFHAS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.077052385).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MFHAS1	NM_004225.3 link	c.2518C>G	p.Pro840Ala	missense_variant	Exon 1 of 3	ENST00000276282.7	NP_004216.2	Q9Y4C4
MFHAS1	XM_047422419.1 link	c.2518C>G	p.Pro840Ala	missense_variant	Exon 1 of 3		XP_047278375.1
MFHAS1	XM_011543852.4 link	c.2518C>G	p.Pro840Ala	missense_variant	Exon 1 of 2		XP_011542154.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MFHAS1	ENST00000276282.7 link	c.2518C>G	p.Pro840Ala	missense_variant	Exon 1 of 3	1	NM_004225.3	ENSP00000276282.6		Q9Y4C4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000160

AC:

AN:

250644

AF XY:

0.0000295

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1461066

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

726828

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000185

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112006

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.000111

Hom.:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 04, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.2518C>G (p.P840A) alteration is located in exon 1 (coding exon 1) of the MFHAS1 gene. This alteration results from a C to G substitution at nucleotide position 2518, causing the proline (P) at amino acid position 840 to be replaced by an alanine (A). 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

0.069

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.51

CADD

Benign

(source)

DANN

Benign

0.85

DEOGEN2

Benign

0.028

Eigen

Benign

-0.35

Eigen_PC

Benign

-0.13

FATHMM_MKL

Uncertain

0.89

LIST_S2

Benign

0.82

M_CAP

Benign

0.0038

MetaRNN

Benign

0.077

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.74

PhyloP100

7.4

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-0.65

REVEL

Benign

0.080

Sift

Benign

0.46

Sift4G

Benign

0.39

Polyphen

0.0030

Vest4

0.30

MutPred

0.22

Loss of methylation at K837 (P = 0.0512);

MVP

0.38

MPC

0.20

ClinPred

0.16

GERP RS

3.1

Varity_R

0.14

gMVP

0.28

Mutation Taster

=85/15

polymorphism

(source)

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

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8-8890541-G-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over