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GeneBe

20-38213655-C-T

Variant summary

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

The NM_001029864.2(KIAA1755):c.2990G>A(p.Arg997His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000145 in 1,606,278 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.000085 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

KIAA1755
NM_001029864.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.53
Variant links:
Genes affected
KIAA1755 (HGNC:29372): (KIAA1755)

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=0.15854841).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
KIAA1755NM_001029864.2 linkuse as main transcriptc.2990G>A p.Arg997His missense_variant 14/14 ENST00000279024.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
KIAA1755ENST00000279024.9 linkuse as main transcriptc.2990G>A p.Arg997His missense_variant 14/145 NM_001029864.2 P2
KIAA1755ENST00000460881.5 linkuse as main transcriptn.1166G>A non_coding_transcript_exon_variant 3/31
KIAA1755ENST00000487506.1 linkuse as main transcriptn.942G>A non_coding_transcript_exon_variant 2/21
KIAA1755ENST00000484362.1 linkuse as main transcriptn.1269G>A non_coding_transcript_exon_variant 5/52

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152220
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:
0.000162
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000671
AC:
16
AN:
238540
Hom.:
0
AF XY:
0.0000541
AC XY:
7
AN XY:
129382
show subpopulations
Gnomad AFR exome
AF:
0.0000655
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000557
Gnomad SAS exome
AF:
0.0000345
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000111
Gnomad OTH exome
AF:
0.000172
GnomAD4 exome
AF:
0.000151
AC:
220
AN:
1454058
Hom.:
0
Cov.:
33
AF XY:
0.000151
AC XY:
109
AN XY:
722698
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000177
Gnomad4 SAS exome
AF:
0.0000705
Gnomad4 FIN exome
AF:
0.0000193
Gnomad4 NFE exome
AF:
0.000181
Gnomad4 OTH exome
AF:
0.0000833
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152220
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74354
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:
0.000162
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000828
Hom.:
0
Bravo
AF:
0.0000907
ExAC
AF:
0.0000659
AC:
8

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, 2021The c.2990G>A (p.R997H) alteration is located in exon 14 (coding exon 14) of the KIAA1755 gene. This alteration results from a G to A substitution at nucleotide position 2990, causing the arginine (R) at amino acid position 997 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
Benign
0.17
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.47
Cadd
Uncertain
24
Dann
Uncertain
0.99
DEOGEN2
Benign
0.0065
T
Eigen
Benign
-0.12
Eigen_PC
Benign
-0.049
FATHMM_MKL
Benign
0.42
N
LIST_S2
Benign
0.78
T
M_CAP
Benign
0.0093
T
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
2.0
M
MutationTaster
Benign
0.90
N
PrimateAI
Benign
0.32
T
PROVEAN
Benign
-0.34
N
REVEL
Benign
0.10
Sift
Benign
0.19
T
Sift4G
Benign
0.14
T
Polyphen
0.53
P
Vest4
0.39
MVP
0.33
MPC
0.28
ClinPred
0.072
T
GERP RS
3.2
Varity_R
0.048
gMVP
0.13

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: rs747051689; hg19: chr20-36842057; COSMIC: COSV54073295; COSMIC: COSV54073295; API