2-216860021-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003284.4(TNP1):​c.14G>A​(p.Arg5His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000149 in 1,613,936 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

TNP1
NM_003284.4 missense

Scores

4
6
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.02
Variant links:
Genes affected
TNP1 (HGNC:11951): (transition protein 1) Transition protein-1 is a spermatid-specific product of the haploid genome which replaces histone and is itself replaced in the mature sperm by the protamines (see PRM1, MIM 182880; PRM2, MIM 182890) (Luerssen et al., 1990 [PubMed 2249851]).[supplied by OMIM, Mar 2008]
TESHL (HGNC:52740): (testicular germ cell expressed HSF2 interacting lncRNA)
DIRC3-AS1 (HGNC:50636): (DIRC3 antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TNP1NM_003284.4 linkuse as main transcriptc.14G>A p.Arg5His missense_variant 1/2 ENST00000236979.2 NP_003275.1
IGFBP-AS1XR_001739169.1 linkuse as main transcriptn.11783+28539C>T intron_variant, non_coding_transcript_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TNP1ENST00000236979.2 linkuse as main transcriptc.14G>A p.Arg5His missense_variant 1/21 NM_003284.4 ENSP00000236979 P1
TESHLENST00000456163.2 linkuse as main transcriptn.74C>T non_coding_transcript_exon_variant 1/31
DIRC3-AS1ENST00000695932.1 linkuse as main transcriptn.449-133937C>T intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152096
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000796
AC:
2
AN:
251214
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135764
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000150
AC:
22
AN:
1461840
Hom.:
0
Cov.:
32
AF XY:
0.0000124
AC XY:
9
AN XY:
727222
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000171
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152096
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74296
show subpopulations
Gnomad4 AFR
AF:
0.0000241
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2

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 GeneticsApr 28, 2023The c.14G>A (p.R5H) alteration is located in exon 1 (coding exon 1) of the TNP1 gene. This alteration results from a G to A substitution at nucleotide position 14, causing the arginine (R) at amino acid position 5 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
Uncertain
0.36
BayesDel_addAF
Benign
-0.085
T
BayesDel_noAF
Benign
-0.19
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.50
D
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.62
FATHMM_MKL
Benign
0.73
D
LIST_S2
Benign
0.78
T
M_CAP
Benign
0.024
T
MetaRNN
Uncertain
0.46
T
MetaSVM
Benign
-0.29
T
MutationTaster
Benign
0.62
N
PrimateAI
Uncertain
0.56
T
PROVEAN
Pathogenic
-4.7
D
REVEL
Benign
0.20
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.41
MutPred
0.49
Loss of methylation at K6 (P = 0.0564);
MVP
0.35
MPC
0.83
ClinPred
1.0
D
GERP RS
5.4
Varity_R
0.75
gMVP
0.038

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: rs779305440; hg19: chr2-217724744; API