chr16-10906560-G-A

Variant names:

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_000246.4(CIITA):c.1068G>A(p.Pro356Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000997 in 1,613,160 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00082 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0010 ( 4 hom. )

Consequence

CIITA
NM_000246.4 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -1.90

Variant links:

Genes affected

CIITA (HGNC:7067): (class II major histocompatibility complex transactivator) This gene encodes a protein with an acidic transcriptional activation domain, 4 LRRs (leucine-rich repeats) and a GTP binding domain. The protein is located in the nucleus and acts as a positive regulator of class II major histocompatibility complex gene transcription, and is referred to as the "master control factor" for the expression of these genes. The protein also binds GTP and uses GTP binding to facilitate its own transport into the nucleus. Once in the nucleus it does not bind DNA but rather uses an intrinsic acetyltransferase (AT) activity to act in a coactivator-like fashion. Mutations in this gene have been associated with bare lymphocyte syndrome type II (also known as hereditary MHC class II deficiency or HLA class II-deficient combined immunodeficiency), increased susceptibility to rheumatoid arthritis, multiple sclerosis, and possibly myocardial infarction. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2013]

CIITA links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.9).

BP6

Variant 16-10906560-G-A is Benign according to our data. Variant chr16-10906560-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 528793.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1, Likely_benign=1}. Variant chr16-10906560-G-A is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-1.9 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000821 (125/152328) while in subpopulation NFE AF= 0.00119 (81/68026). AF 95% confidence interval is 0.000981. There are 0 homozygotes in gnomad4. There are 54 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 4 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CIITA	NM_000246.4 link	c.1068G>A	p.Pro356Pro	synonymous_variant	Exon 11 of 20	ENST00000324288.14	NP_000237.2	P33076A0A0B4J1S1Q66X48

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CIITA	ENST00000324288.14 link	c.1068G>A	p.Pro356Pro	synonymous_variant	Exon 11 of 20	1	NM_000246.4	ENSP00000316328.8		A0A0B4J1S1

Frequencies

GnomAD3 genomes

AF:

0.000828

AC:

126

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000362

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00124

Gnomad ASJ

AF:

0.00144

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00119

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.000858

AC:

215

AN:

250630

Hom.:

AF XY:

0.000877

AC XY:

119

AN XY:

135676

show subpopulations

Gnomad AFR exome

AF:

0.000310

Gnomad AMR exome

AF:

0.00119

Gnomad ASJ exome

AF:

0.000398

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000490

Gnomad FIN exome

AF:

0.000139

Gnomad NFE exome

AF:

0.00118

Gnomad OTH exome

AF:

0.00229

GnomAD4 exome

AF:

0.00102

AC:

1484

AN:

1460832

Hom.:

Cov.:

AF XY:

0.00104

AC XY:

758

AN XY:

726716

show subpopulations

Gnomad4 AFR exome

AF:

0.000389

Gnomad4 AMR exome

AF:

0.00114

Gnomad4 ASJ exome

AF:

0.000306

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000545

Gnomad4 FIN exome

AF:

0.000188

Gnomad4 NFE exome

AF:

0.00113

Gnomad4 OTH exome

AF:

0.00119

GnomAD4 genome

AF:

0.000821

AC:

125

AN:

152328

Hom.:

Cov.:

AF XY:

0.000725

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.000361

Gnomad4 AMR

AF:

0.00118

Gnomad4 ASJ

AF:

0.00144

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00119

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00106

Hom.:

Bravo

AF:

0.000858

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00115

EpiControl

AF:

0.00154

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

MHC class II deficiency

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Mar 30, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 29, 2025	- -

CIITA-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Dec 28, 2023

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CeGaT Center for Human Genetics Tuebingen

Nov 01, 2022

CIITA: BP4, BP7 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.90

CADD

Benign

0.51

DANN

Benign

0.69

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.

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