16-10905816-C-G

Variant names:

• chr16-10905816-C-G
• rs7404615
• NM_000246.4:c.1007-683C>G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000246.4(CIITA):​c.1007-683C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.926 in 151,946 control chromosomes in the GnomAD database, including 66,203 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.93 (66203 hom., cov: 29)
• Consequence: CIITA NM_000246.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.505

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.94).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.993 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CIITA	NM_000246.4	c.1007-683C>G		intron_variant	Intron 10 of 19	ENST00000324288.14	NP_000237.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CIITA	ENST00000324288.14	c.1007-683C>G		intron_variant	Intron 10 of 19	1	NM_000246.4	ENSP00000316328.8

Frequencies

GnomAD3 genomes AF: 0.927 AC: 140682 AN: 151830 Hom.: 66169 Cov.: 29

Gnomad AFR AF: 0.743

Gnomad AMI AF: 1.00

Gnomad AMR AF: 0.975

Gnomad ASJ AF: 1.00

Gnomad EAS AF: 1.00

Gnomad SAS AF: 0.999

Gnomad FIN AF: 1.00

Gnomad MID AF: 0.994

Gnomad NFE AF: 0.999

Gnomad OTH AF: 0.949

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.926 AC: 140770 AN: 151946 Hom.: 66203 Cov.: 29 AF XY: 0.929 AC XY: 68965 AN XY: 74258

Gnomad4 AFR AF: 0.743

Gnomad4 AMR AF: 0.975

Gnomad4 ASJ AF: 1.00

Gnomad4 EAS AF: 1.00

Gnomad4 SAS AF: 0.999

Gnomad4 FIN AF: 1.00

Gnomad4 NFE AF: 0.999

Gnomad4 OTH AF: 0.950

Alfa AF: 0.961 Hom.: 3473

Bravo AF: 0.915

Asia WGS AF: 0.987 AC: 3434 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.94
CADD	Benign	0.47
DANN	Benign	0.23

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: rs7404615; hg19: chr16-10999673;