chr7-123452869-G-T

Variant summary

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

The NM_178827.5(IQUB):​c.2250C>A​(p.Asn750Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000103 in 1,613,360 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00010 ( 0 hom. )

Consequence

IQUB
NM_178827.5 missense

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.44
Variant links:
Genes affected
IQUB (HGNC:21995): (IQ motif and ubiquitin domain containing) Predicted to be involved in cilium assembly. Predicted to act upstream of or within smoothened signaling pathway. Predicted to be active in acrosomal vesicle and motile cilium. [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=0.16983768).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IQUBNM_178827.5 linkuse as main transcriptc.2250C>A p.Asn750Lys missense_variant 13/13 ENST00000324698.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IQUBENST00000324698.11 linkuse as main transcriptc.2250C>A p.Asn750Lys missense_variant 13/131 NM_178827.5 P1Q8NA54-1
IQUBENST00000466202.5 linkuse as main transcriptc.2250C>A p.Asn750Lys missense_variant 13/131 P1Q8NA54-1
IQUBENST00000469057.1 linkuse as main transcriptc.*808C>A 3_prime_UTR_variant, NMD_transcript_variant 12/122
IQUBENST00000484508.5 linkuse as main transcriptc.*655C>A 3_prime_UTR_variant, NMD_transcript_variant 14/142 Q8NA54-2

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
152074
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.000235
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000478
AC:
12
AN:
251102
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135722
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000106
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000102
AC:
149
AN:
1461286
Hom.:
0
Cov.:
30
AF XY:
0.0000922
AC XY:
67
AN XY:
726964
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000131
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152074
Hom.:
0
Cov.:
32
AF XY:
0.000108
AC XY:
8
AN XY:
74284
show subpopulations
Gnomad4 AFR
AF:
0.0000242
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:
0.000235
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000922
Hom.:
0
Bravo
AF:
0.0000982
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000698
AC:
6
ExAC
AF:
0.0000906
AC:
11
EpiCase
AF:
0.0000546
EpiControl
AF:
0.000178

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 GeneticsDec 08, 2023The c.2250C>A (p.N750K) alteration is located in exon 13 (coding exon 12) of the IQUB gene. This alteration results from a C to A substitution at nucleotide position 2250, causing the asparagine (N) at amino acid position 750 to be replaced by a lysine (K). 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
0.53
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.54
CADD
Benign
18
DANN
Benign
0.96
DEOGEN2
Benign
0.075
T;T
Eigen
Uncertain
0.25
Eigen_PC
Uncertain
0.31
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Benign
0.80
.;T
M_CAP
Benign
0.0078
T
MetaRNN
Benign
0.17
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.2
M;M
MutationTaster
Benign
0.60
N;N
PrimateAI
Uncertain
0.66
T
PROVEAN
Uncertain
-3.9
D;D
REVEL
Benign
0.079
Sift
Benign
0.20
T;T
Sift4G
Benign
0.40
T;T
Polyphen
0.85
P;P
Vest4
0.24
MutPred
0.38
Gain of methylation at N750 (P = 0.028);Gain of methylation at N750 (P = 0.028);
MVP
0.29
MPC
0.048
ClinPred
0.31
T
GERP RS
4.3
Varity_R
0.35
gMVP
0.36

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: rs148678397; hg19: chr7-123092923; API