3-51895027-G-A

Variant summary

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

The NM_152397.3(IQCF1):​c.481C>T​(p.Arg161Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000312 in 1,614,088 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00033 ( 1 hom. )

Consequence

IQCF1
NM_152397.3 missense

Scores

4
15

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.940
Variant links:
Genes affected
IQCF1 (HGNC:28607): (IQ motif containing F1) Predicted to enable calmodulin binding activity. Predicted to be involved in positive regulation of acrosome reaction and positive regulation of flagellated sperm motility involved in capacitation. Located in acrosomal vesicle. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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=0.10278705).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IQCF1NM_152397.3 linkuse as main transcriptc.481C>T p.Arg161Cys missense_variant 4/4 ENST00000310914.10
IQCF1XM_011533366.2 linkuse as main transcriptc.376C>T p.Arg126Cys missense_variant 3/3
IQCF1XM_017005729.1 linkuse as main transcriptc.376C>T p.Arg126Cys missense_variant 3/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IQCF1ENST00000310914.10 linkuse as main transcriptc.481C>T p.Arg161Cys missense_variant 4/41 NM_152397.3 P1Q8N6M8-1
IQCF1ENST00000314534.6 linkuse as main transcriptc.*402C>T 3_prime_UTR_variant, NMD_transcript_variant 5/53

Frequencies

GnomAD3 genomes
AF:
0.000131
AC:
20
AN:
152208
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.000176
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000167
AC:
42
AN:
251476
Hom.:
0
AF XY:
0.000184
AC XY:
25
AN XY:
135922
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000325
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000331
AC:
484
AN:
1461880
Hom.:
1
Cov.:
31
AF XY:
0.000304
AC XY:
221
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.0000749
Gnomad4 NFE exome
AF:
0.000408
Gnomad4 OTH exome
AF:
0.000166
GnomAD4 genome
AF:
0.000131
AC:
20
AN:
152208
Hom.:
0
Cov.:
32
AF XY:
0.0000941
AC XY:
7
AN XY:
74356
show subpopulations
Gnomad4 AFR
AF:
0.0000965
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000194
Hom.:
0
Bravo
AF:
0.000170
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000157
AC:
19
EpiCase
AF:
0.000327
EpiControl
AF:
0.000237

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 GeneticsFeb 21, 2024The c.481C>T (p.R161C) alteration is located in exon 4 (coding exon 4) of the IQCF1 gene. This alteration results from a C to T substitution at nucleotide position 481, causing the arginine (R) at amino acid position 161 to be replaced by a cysteine (C). 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
0.13
BayesDel_addAF
Benign
-0.34
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.088
T
Eigen
Benign
-0.21
Eigen_PC
Benign
-0.29
FATHMM_MKL
Benign
0.078
N
LIST_S2
Benign
0.73
T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.4
L
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.24
T
PROVEAN
Uncertain
-4.0
D
REVEL
Benign
0.086
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0050
D
Polyphen
0.99
D
Vest4
0.34
MVP
0.25
MPC
0.32
ClinPred
0.18
T
GERP RS
3.2
Varity_R
0.17
gMVP
0.21

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: rs138812894; hg19: chr3-51929043; API