Genetic Variant FAM229A:p.Pro3Leu (chr1-32362084-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_001167676.2(FAM229A):c.8C>T(p.Pro3Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000054 in 1,407,382 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 0.000046 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

FAM229A
NM_001167676.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.708

Variant links:

Genes affected

FAM229A (HGNC:44652): (family with sequence similarity 229 member A)

FAM229A links:

TSSK3 (HGNC:15473): (testis specific serine kinase 3) This gene encodes a kinase expressed exclusively in the testis that is thought to play a role in either germ cell differentiation or mature sperm function. [provided by RefSeq, Jul 2008]

TSSK3 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=0.06144008).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
FAM229A	NM_001167676.2 link	c.8C>T	p.Pro3Leu	missense_variant	Exon 1 of 3	ENST00000432622.2	NP_001161148.1	H3BQW9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
FAM229A	ENST00000432622.2 link	c.8C>T	p.Pro3Leu	missense_variant	Exon 1 of 3	2	NM_001167676.2	ENSP00000455971.1	H3BQW9
FAM229A	ENST00000416512.1 link	n.2140C>T		non_coding_transcript_exon_variant	Exon 1 of 2	1
TSSK3	ENST00000574315.1 link	c.-80-1511G>A		intron_variant	Intron 1 of 1	3		ENSP00000459187.1	I3L1X4
FAM229A	ENST00000415596.1 link	n.205-33C>T		intron_variant	Intron 1 of 2	3

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000800

AC:

AN:

37482

Hom.:

AF XY:

0.00

AC XY:

AN XY:

22302

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000278

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:

0.0000760

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000550

AC:

AN:

1255206

Hom.:

Cov.:

AF XY:

0.0000507

AC XY:

AN XY:

611392

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000228

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:

0.0000610

Gnomad4 OTH exome

AF:

0.0000580

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74348

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000340

ExAC

AF:

0.0000619

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 14, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.8C>T (p.P3L) alteration is located in exon 1 (coding exon 1) of the FAM229A gene. This alteration results from a C to T substitution at nucleotide position 8, causing the proline (P) at amino acid position 3 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

0.10

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.010

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.54

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.061

MutationAssessor

Benign

0.0

PrimateAI

Uncertain

0.71

PROVEAN

Uncertain

-2.5

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Vest4

0.26

MVP

0.32

GERP RS

2.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.2

Varity_R

0.20

gMVP

0.18

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