20-38213359-C-G

Position:

• chr20-38213359-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001029864.2(KIAA1755):​c.3286G>C​(p.Asp1096His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000687 in 1,455,120 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: KIAA1755 NM_001029864.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.01

Genes affected

KIAA1755 (HGNC:29372): (KIAA1755)

KIAA1755 (HGNC:):

ACMG classification

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=0.10616416).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KIAA1755	NM_001029864.2	c.3286G>C	p.Asp1096His	missense_variant	14/14	ENST00000279024.9	NP_001025035.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KIAA1755	ENST00000279024.9	c.3286G>C	p.Asp1096His	missense_variant	14/14	5	NM_001029864.2	ENSP00000279024.4
KIAA1755	ENST00000460881.5	n.1462G>C		non_coding_transcript_exon_variant	3/3	1
KIAA1755	ENST00000487506.1	n.1238G>C		non_coding_transcript_exon_variant	2/2	1
KIAA1755	ENST00000484362.1	n.1565G>C		non_coding_transcript_exon_variant	5/5	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.87e-7 AC: 1 AN: 1455120 Hom.: 0 Cov.: 60 AF XY: 0.00000138 AC XY: 1 AN XY: 723300

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000117

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 10, 2024

The c.3286G>C (p.D1096H) alteration is located in exon 14 (coding exon 14) of the KIAA1755 gene. This alteration results from a G to C substitution at nucleotide position 3286, causing the aspartic acid (D) at amino acid position 1096 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	0.12
BayesDel_addAF	Benign	-0.29	T
BayesDel_noAF	Benign	-0.65
CADD	Benign	16
DANN	Benign	0.83
DEOGEN2	Benign	0.0058	T
Eigen	Benign	-0.67
Eigen_PC	Benign	-0.64
FATHMM_MKL	Benign	0.45	N
LIST_S2	Benign	0.55	T
M_CAP	Benign	0.0072	T
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.6	L
PrimateAI	Benign	0.36	T
PROVEAN	Uncertain	-2.7	D
REVEL	Benign	0.035
Sift	Benign	0.049	D
Sift4G	Benign	0.12	T
Polyphen		0.23	B
Vest4		0.083
MutPred		0.15		Gain of catalytic residue at L1098 (P = 0.0592);
MVP		0.12
MPC		0.061
ClinPred		0.15	T
GERP RS		3.3
Varity_R		0.099
gMVP		0.34

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-36841761;