Genetic Variant FAM171A2:p.Pro722Leu (chr17-44354049-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_198475.3(FAM171A2):c.2165C>T(p.Pro722Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000435 in 1,149,316 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: 𝑓 0.0000068 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000040 ( 0 hom. )

Consequence

FAM171A2
NM_198475.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.52

Variant links:

Genes affected

FAM171A2 (HGNC:30480): (family with sequence similarity 171 member A2) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

FAM171A2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.23932919).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAM171A2	NM_198475.3 link	c.2165C>T	p.Pro722Leu	missense_variant	Exon 8 of 8	ENST00000293443.12	NP_940877.2	A8MVW0
FAM171A2	XM_017024490.2 link	c.1613C>T	p.Pro538Leu	missense_variant	Exon 6 of 6		XP_016879979.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
FAM171A2	ENST00000293443.12 link	c.2165C>T	p.Pro722Leu	missense_variant	Exon 8 of 8	1	NM_198475.3	ENSP00000293443.6		A8MVW0

Frequencies

GnomAD3 genomes

AF:

0.00000678

AC:

AN:

147470

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:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000151

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000399

AC:

AN:

1001846

Hom.:

Cov.:

AF XY:

0.00000424

AC XY:

AN XY:

471652

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:

0.00000460

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000678

AC:

AN:

147470

Hom.:

Cov.:

AF XY:

0.0000139

AC XY:

AN XY:

71834

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000151

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000936

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 06, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2165C>T (p.P722L) alteration is located in exon 8 (coding exon 8) of the FAM171A2 gene. This alteration results from a C to T substitution at nucleotide position 2165, causing the proline (P) at amino acid position 722 to be replaced by a leucine (L). 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

0.18

BayesDel_addAF

Benign

-0.15

BayesDel_noAF

Benign

-0.46

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0082

Eigen

Benign

0.0054

Eigen_PC

Benign

-0.052

FATHMM_MKL

Benign

0.26

LIST_S2

Benign

0.60

M_CAP

Uncertain

0.19

MetaRNN

Benign

0.24

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-0.71

REVEL

Benign

0.063

Sift

Uncertain

0.017

Sift4G

Uncertain

0.053

Polyphen

0.97

Vest4

0.13

MutPred

0.36

Loss of glycosylation at P722 (P = 0.0034);

MVP

0.16

ClinPred

0.83

GERP RS

2.8

Varity_R

0.13

gMVP

0.33

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