2-185744351-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM2BP4_ModerateBP6BP7BS1

The NM_173651.4(FSIP2):​c.417G>A​(p.Lys139=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000639 in 1,251,326 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 Likely benign (no stars).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

FSIP2
NM_173651.4 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.629
Variant links:
Genes affected
FSIP2 (HGNC:21675): (fibrous sheath interacting protein 2) This gene encodes a protein associated with the sperm fibrous sheath. Genes encoding most of the fibrous-sheath associated proteins genes are transcribed only during the postmeiotic period of spermatogenesis. The protein encoded by this gene is specific to spermatogenic cells. Copy number variation in this gene may be associated with testicular germ cell tumors. Pseudogenes associated with this gene are reported on chromosomes 2 and X. [provided by RefSeq, Aug 2016]
FSIP2-AS1 (HGNC:40978): (FSIP2 antisense RNA 1)

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.44).
BP6
Variant 2-185744351-G-A is Benign according to our data. Variant chr2-185744351-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3042041.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=0.629 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000388 (59/151968) while in subpopulation AFR AF= 0.00135 (56/41478). AF 95% confidence interval is 0.00107. There are 0 homozygotes in gnomad4. There are 23 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FSIP2NM_173651.4 linkuse as main transcriptc.417G>A p.Lys139= synonymous_variant 4/23 ENST00000424728.6 NP_775922.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FSIP2ENST00000424728.6 linkuse as main transcriptc.417G>A p.Lys139= synonymous_variant 4/235 NM_173651.4 ENSP00000401306 P1Q5CZC0-1
FSIP2-AS1ENST00000667756.1 linkuse as main transcriptn.37+44415C>T intron_variant, non_coding_transcript_variant
FSIP2ENST00000469367.1 linkuse as main transcriptn.142G>A non_coding_transcript_exon_variant 2/23

Frequencies

GnomAD3 genomes
AF:
0.000389
AC:
59
AN:
151850
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00135
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:
0.00
Gnomad OTH
AF:
0.000478
GnomAD4 exome
AF:
0.0000191
AC:
21
AN:
1099358
Hom.:
0
Cov.:
15
AF XY:
0.0000183
AC XY:
10
AN XY:
545380
show subpopulations
Gnomad4 AFR exome
AF:
0.000574
Gnomad4 AMR exome
AF:
0.0000709
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:
0.00000676
Gnomad4 OTH exome
AF:
0.0000218
GnomAD4 genome
AF:
0.000388
AC:
59
AN:
151968
Hom.:
0
Cov.:
32
AF XY:
0.000310
AC XY:
23
AN XY:
74290
show subpopulations
Gnomad4 AFR
AF:
0.00135
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:
0.00
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000710
Hom.:
0
Bravo
AF:
0.000457

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

FSIP2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesJan 02, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
6.5
DANN
Benign
0.62

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.

Other links and lift over

dbSNP: rs7565249; hg19: chr2-186609078; API