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GeneBe

20-33000076-A-G

Variant summary

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

The NM_080675.4(SUN5):c.338T>C(p.Phe113Ser) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.00000311 in 1,608,978 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SUN5
NM_080675.4 missense, splice_region

Scores

5
12
Splicing: ADA: 0.3542
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.84
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]

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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=0.2567214).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SUN5NM_080675.4 linkuse as main transcriptc.338T>C p.Phe113Ser missense_variant, splice_region_variant 5/13 ENST00000356173.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SUN5ENST00000356173.8 linkuse as main transcriptc.338T>C p.Phe113Ser missense_variant, splice_region_variant 5/131 NM_080675.4 P2
SUN5ENST00000420875.5 linkuse as main transcriptc.305T>C p.Phe102Ser missense_variant 5/53
SUN5ENST00000375519.2 linkuse as main transcriptc.271T>C p.Ser91Pro missense_variant 4/42
SUN5ENST00000375523.7 linkuse as main transcriptc.263T>C p.Phe88Ser missense_variant, splice_region_variant 4/125 A2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152156
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1456822
Hom.:
0
Cov.:
34
AF XY:
0.00000414
AC XY:
3
AN XY:
723832
show subpopulations
Gnomad4 AFR exome
AF:
0.0000897
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152156
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 16, 2022The c.338T>C (p.F113S) alteration is located in exon 5 (coding exon 5) of the SUN5 gene. This alteration results from a T to C substitution at nucleotide position 338, causing the phenylalanine (F) at amino acid position 113 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
0.29
BayesDel_addAF
Uncertain
0.023
T
BayesDel_noAF
Benign
-0.21
Cadd
Pathogenic
26
Dann
Uncertain
1.0
Eigen
Uncertain
0.20
Eigen_PC
Benign
0.071
FATHMM_MKL
Benign
0.38
N
LIST_S2
Benign
0.68
T;T;T
M_CAP
Benign
0.027
D
MetaRNN
Benign
0.24
T;T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
0.88
D;D;N
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-0.69
N;N;D
REVEL
Benign
0.20
Sift
Benign
0.075
T;T;D
Sift4G
Uncertain
0.032
D;D;D
Polyphen
0.98
.;D;.
Vest4
0.63
MutPred
0.53
.;Loss of stability (P = 0.0304);.;
MVP
0.30
MPC
0.54
ClinPred
0.84
D
GERP RS
4.1
Varity_R
0.093
gMVP
0.42

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.35
dbscSNV1_RF
Benign
0.49
SpliceAI score (max)
0.050
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.

Other links and lift over

dbSNP: rs1189954636; hg19: chr20-31587882; API