Genetic Variant MANSC4:p.Pro247Ser (chr12-27763022-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_001146221.5(MANSC4):c.739C>T(p.Pro247Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000516 in 1,551,702 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P247T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

MANSC4
NM_001146221.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.95

Variant links:

Genes affected

MANSC4 (HGNC:40023): (MANSC domain containing 4) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

MANSC4 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=0.047555923).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MANSC4	NM_001146221.5 link	c.739C>T	p.Pro247Ser	missense_variant	Exon 4 of 4	ENST00000381273.4	NP_001139693.1	A6NHS7
MANSC4	XM_011520542.3 link	c.658C>T	p.Pro220Ser	missense_variant	Exon 4 of 4		XP_011518844.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MANSC4	ENST00000381273.4 link	c.739C>T	p.Pro247Ser	missense_variant	Exon 4 of 4	5	NM_001146221.5	ENSP00000370673.3		A6NHS7

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152136

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:

0.000577

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000128

AC:

AN:

156718

Hom.:

AF XY:

0.0000120

AC XY:

AN XY:

83026

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000183

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:

0.00000286

AC:

AN:

1399448

Hom.:

Cov.:

AF XY:

0.00000145

AC XY:

AN XY:

690228

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000839

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.27e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152254

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000579

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.00000756

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

Nov 02, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.739C>T (p.P247S) alteration is located in exon 3 (coding exon 3) of the MANSC4 gene. This alteration results from a C to T substitution at nucleotide position 739, causing the proline (P) at amino acid position 247 to be replaced by a serine (S). 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

0.10

BayesDel_addAF

Benign

-0.42

BayesDel_noAF

Benign

-0.56

CADD

Benign

DANN

Benign

0.77

DEOGEN2

Benign

0.049

Eigen

Benign

-0.43

Eigen_PC

Benign

-0.45

FATHMM_MKL

Benign

0.47

LIST_S2

Benign

0.57

M_CAP

Benign

0.0092

MetaRNN

Benign

0.048

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.0

PrimateAI

Benign

0.30

PROVEAN

Benign

-1.6

REVEL

Benign

0.016

Sift

Benign

0.12

Sift4G

Benign

0.41

Polyphen

0.26

Vest4

0.099

MVP

0.16

ClinPred

0.074

GERP RS

3.0

Varity_R

0.043

gMVP

0.44

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