1-52032710-T-C

Position:

chr1-52032710-T-C

Variant summary

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

The NM_138417.3(KTI12):c.1052A>G(p.Gln351Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000933 in 1,607,820 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. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q351E) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000076 ( 0 hom. )

Consequence

KTI12
NM_138417.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.04

Variant links:

Genes affected

KTI12 (HGNC:25160): (KTI12 chromatin associated homolog) Predicted to enable ATP binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II and tRNA wobble uridine modification. [provided by Alliance of Genome Resources, Apr 2022]

KTI12 links:

TXNDC12 (HGNC:24626): (thioredoxin domain containing 12) This gene encodes a member of the thioredoxin superfamily. Members of this family are characterized by a conserved active motif called the thioredoxin fold that catalyzes disulfide bond formation and isomerization. This protein localizes to the endoplasmic reticulum and has a single atypical active motif. The encoded protein is mainly involved in catalyzing native disulfide bond formation and displays activity similar to protein-disulfide isomerases. This protein may play a role in defense against endoplasmic reticulum stress. Alternate splicing results in both coding and non-coding variants. [provided by RefSeq, Mar 2012]

TXNDC12 links:

ENSG00000285839 (HGNC:):

ENSG00000285839 links:

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=0.11521068).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
KTI12	NM_138417.3 linkuse as main transcript	c.1052A>G	p.Gln351Arg	missense_variant	1/1	ENST00000371614.2	NP_612426.1	Q96EK9
TXNDC12	NM_015913.4 linkuse as main transcript	c.159-4080A>G		intron_variant		ENST00000371626.9	NP_056997.1	O95881
TXNDC12	NR_046405.1 linkuse as main transcript	n.2575A>G		non_coding_transcript_exon_variant	3/3
TXNDC12	NR_046406.1 linkuse as main transcript	n.2452A>G		non_coding_transcript_exon_variant	3/3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
KTI12	ENST00000371614.2 linkuse as main transcript	c.1052A>G	p.Gln351Arg	missense_variant	1/1	6	NM_138417.3	ENSP00000360676.1	Q96EK9
TXNDC12	ENST00000371626.9 linkuse as main transcript	c.159-4080A>G		intron_variant		1	NM_015913.4	ENSP00000360688.4	O95881
ENSG00000285839	ENST00000648686.1 linkuse as main transcript	n.641A>G		non_coding_transcript_exon_variant	1/7			ENSP00000498140.1	A0A3B3IU88
TXNDC12	ENST00000472624.5 linkuse as main transcript	n.159-2162A>G		intron_variant		5		ENSP00000477120.1	V9GYV4

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152230

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000756

AC:

AN:

1455590

Hom.:

Cov.:

AF XY:

0.00000829

AC XY:

AN XY:

723654

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000992

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74380

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000588

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000108

Hom.:

Bravo

AF:

0.00000756

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 submitter

clinical testing

Ambry Genetics

May 30, 2022

The c.1052A>G (p.Q351R) alteration is located in exon 1 (coding exon 1) of the KTI12 gene. This alteration results from a A to G substitution at nucleotide position 1052, causing the glutamine (Q) at amino acid position 351 to be replaced by an arginine (R). 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

0.11

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.00078

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.28

FATHMM_MKL

Benign

0.41

LIST_S2

Benign

0.50

M_CAP

Benign

0.0041

MetaRNN

Benign

0.12

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

PrimateAI

Benign

0.34

PROVEAN

Benign

-0.33

REVEL

Benign

0.024

Sift

Benign

0.33

Sift4G

Benign

0.81

Polyphen

0.025

Vest4

0.10

MutPred

0.31

Gain of MoRF binding (P = 0.0037);

MVP

0.48

MPC

0.60

ClinPred

0.63

GERP RS

3.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.8

Varity_R

0.079

gMVP

0.12

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.11

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over