16-29906904-G-A

Position:

• chr16-29906904-G-A

Variant summary

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

The NM_178863.5(KCTD13):​c.958C>T​(p.Pro320Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/20 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: 31)
• Consequence: KCTD13 NM_178863.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.85

Genes affected

KCTD13 (HGNC:22234): (potassium channel tetramerization domain containing 13) Enables identical protein binding activity and small GTPase binding activity. Contributes to ubiquitin-protein transferase activity. Involved in several processes, including cellular protein metabolic process; negative regulation of Rho protein signal transduction; and stress fiber assembly. Located in nuclear body. Part of Cul3-RING ubiquitin ligase complex. [provided by Alliance of Genome Resources, Apr 2022]

ASPHD1 (HGNC:27380): (aspartate beta-hydroxylase domain containing 1) Predicted to enable dioxygenase activity. Predicted to be involved in peptidyl-amino acid modification. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

KCTD13 (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=0.1157645).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KCTD13	NM_178863.5	c.958C>T	p.Pro320Ser	missense_variant	6/6	ENST00000568000.6	NP_849194.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
KCTD13	ENST00000568000.6	c.958C>T	p.Pro320Ser	missense_variant	6/6	1	NM_178863.5	ENSP00000455785.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

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

Dec 10, 2024

The c.958C>T (p.P320S) alteration is located in exon 6 (coding exon 6) of the KCTD13 gene. This alteration results from a C to T substitution at nucleotide position 958, causing the proline (P) at amino acid position 320 to be replaced by a serine (S). 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	0.096
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.020	T
Eigen	Benign	0.12
Eigen_PC	Uncertain	0.25
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.72	T
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.12	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.6	L
PrimateAI	Uncertain	0.67	T
PROVEAN	Benign	-0.65	N
Sift	Benign	0.35	T
Sift4G	Benign	0.40	T
Polyphen		0.69	P
Vest4		0.087
MutPred		0.10		Gain of MoRF binding (P = 0.0312);
MVP		0.29
MPC		1.2
ClinPred		0.42	T
GERP RS		5.2
Varity_R		0.077
gMVP		0.32

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: rs2068622428; hg19: chr16-29918225;