Genetic Variant NM_080675.4:c.734A>C (chr20-32985899-T-G) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP2

The NM_080675.4(SUN5):c.734A>C(p.Asn245Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,454 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N245S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

SUN5
NM_080675.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.78

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

spermatogenic failure 16
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

SUN5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 4 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 0.68847 (below the threshold of 3.09). Trascript score misZ: 0.63256 (below the threshold of 3.09). GenCC associations: The gene is linked to spermatogenic failure 16.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_080675.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SUN5	NM_080675.4	MANE Select	c.734A>C	p.Asn245Thr	missense	Exon 11 of 13	NP_542406.2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SUN5	ENST00000356173.8	TSL:1 MANE Select	c.734A>C	p.Asn245Thr	missense	Exon 11 of 13	ENSP00000348496.3	Q8TC36
	SUN5	ENST00000375523.7	TSL:5	c.659A>C	p.Asn220Thr	missense	Exon 10 of 12	ENSP00000364673.3	A9Z1W8

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250688

AF XY:

0.00000738

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:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461454

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727050

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33474

American (AMR)

AF:

0.00

AC:

AN:

44700

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26080

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86206

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53394

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.00000450

AC:

AN:

1111756

Other (OTH)

AF:

0.00

AC:

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.515

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.014

BayesDel_noAF

Benign

-0.26

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.13

Eigen

Benign

0.17

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.69

M_CAP

Uncertain

0.087

MetaRNN

Uncertain

0.44

MetaSVM

Benign

-0.30

MutationAssessor

Benign

1.2

PhyloP100

2.8

PrimateAI

Benign

0.42

PROVEAN

Uncertain

-2.6

REVEL

Uncertain

0.47

Sift

Benign

0.030

Sift4G

Uncertain

0.015

Polyphen

0.98

Vest4

0.48

MutPred

0.61

Gain of glycosylation at N245 (P = 0.0054)

MVP

0.54

MPC

0.56

ClinPred

0.96

GERP RS

4.4

Varity_R

0.26

gMVP

0.53

Mutation Taster

=60/40

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over