Genetic Variant SUN5:p.Asn373His (chr20-32983817-T-G) – 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_080675.4(SUN5):c.1117A>C(p.Asn373His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000211 in 1,563,590 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

SUN5
NM_080675.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.714

Variant links:

Genes affected

SUN5 (HGNC:16252): (Sad1 and UNC84 domain containing 5) The protein encoded by this gene appears to play a role in the meiotic stage of spermatogenesis. The encoded protein localizes to the junction between the sperm head and body and may be involved in nuclear envelope reconstitution and nuclear migration. Mutations in this gene have been implicated in acephalic spermatozoa syndrome. [provided by RefSeq, May 2017]

SUN5 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=0.056092054).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SUN5	NM_080675.4 link	c.1117A>C	p.Asn373His	missense_variant	Exon 13 of 13	ENST00000356173.8	NP_542406.2	Q8TC36A0A384MDU5
SUN5	XM_011528573.2 link	c.1186A>C	p.Asn396His	missense_variant	Exon 14 of 14		XP_011526875.1
SUN5	XM_011528574.2 link	c.1042A>C	p.Asn348His	missense_variant	Exon 12 of 12		XP_011526876.1	A9Z1W8
SUN5	XM_011528575.2 link	c.847A>C	p.Asn283His	missense_variant	Exon 11 of 11		XP_011526877.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SUN5	ENST00000356173.8 link	c.1117A>C	p.Asn373His	missense_variant	Exon 13 of 13	1	NM_080675.4	ENSP00000348496.3		Q8TC36
SUN5	ENST00000375523.7 link	c.1042A>C	p.Asn348His	missense_variant	Exon 12 of 12	5		ENSP00000364673.3		A9Z1W8

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152220

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000179

AC:

AN:

223104

Hom.:

AF XY:

0.0000165

AC XY:

AN XY:

120954

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000382

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000205

AC:

AN:

1411370

Hom.:

Cov.:

AF XY:

0.0000158

AC XY:

AN XY:

698310

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:

0.0000267

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152220

Hom.:

Cov.:

AF XY:

0.0000403

AC XY:

AN XY:

74366

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000582

Hom.:

Bravo

AF:

0.00000756

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 05, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1117A>C (p.N373H) alteration is located in exon 13 (coding exon 13) of the SUN5 gene. This alteration results from a A to C substitution at nucleotide position 1117, causing the asparagine (N) at amino acid position 373 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

0.073

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.77

CADD

Benign

DANN

Benign

0.86

DEOGEN2

Benign

0.0020

.;T

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.022

LIST_S2

Benign

0.38

T;T

M_CAP

Benign

0.0034

MetaRNN

Benign

0.056

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.90

.;L

PrimateAI

Benign

0.32

PROVEAN

Benign

0.16

N;N

REVEL

Benign

0.026

Sift

Uncertain

0.014

D;D

Sift4G

Benign

0.11

T;T

Polyphen

0.29

.;B

Vest4

0.17

MutPred

0.12

.;Loss of solvent accessibility (P = 0.086);

MVP

0.014

MPC

0.18

ClinPred

0.12

GERP RS

-0.016

Varity_R

0.060

gMVP

0.23

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