chr18-36885609-T-A

Position:

• chr18-36885609-T-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_020776.3(KIAA1328):​c.385T>A​(p.Ser129Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,446,380 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: KIAA1328 NM_020776.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.73

Genes affected

KIAA1328 (HGNC:29248): (KIAA1328)

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.061385483).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
KIAA1328	NM_020776.3	c.385T>A	p.Ser129Thr	missense_variant	5/10	ENST00000280020.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
KIAA1328	ENST00000280020.10	c.385T>A	p.Ser129Thr	missense_variant	5/10	1	NM_020776.3	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1446380 Hom.: 0 Cov.: 31 AF XY: 0.00000139 AC XY: 1 AN XY: 718556

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000181

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Alfa AF: 0.0000312 Hom.: 0

Bravo AF: 0.00000756

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

Mar 27, 2023

The c.385T>A (p.S129T) alteration is located in exon 5 (coding exon 5) of the KIAA1328 gene. This alteration results from a T to A substitution at nucleotide position 385, causing the serine (S) at amino acid position 129 to be replaced by a threonine (T). 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	-0.20	T
BayesDel_noAF	Benign	-0.53
CADD	Benign	21
DANN	Benign	0.87
DEOGEN2	Benign	0.025	T;T;.
Eigen	Benign	-0.41
Eigen_PC	Benign	-0.29
FATHMM_MKL	Benign	0.76	D
LIST_S2	Benign	0.73	T;T;T
M_CAP	Benign	0.015	T
MetaRNN	Benign	0.061	T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.7	L;.;.
MutationTaster	Benign	0.74	D;D;D;N;N
PrimateAI	Uncertain	0.54	T
PROVEAN	Benign	-1.2	N;.;.
REVEL	Benign	0.11
Sift	Benign	0.28	T;.;.
Sift4G	Benign	0.55	T;T;T
Polyphen		0.31	B;.;.
Vest4		0.19
MVP		0.25
MPC		0.055
ClinPred		0.15	T
GERP RS		1.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.091
gMVP		0.026

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

Other links and lift over

dbSNP: rs1224349546; hg19: chr18-34465572;