rs6498124

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000246.4(CIITA):​c.482-45G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.545 in 1,611,356 control chromosomes in the GnomAD database, including 245,413 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.47 ( 17844 hom., cov: 31)
Exomes 𝑓: 0.55 ( 227569 hom. )

Consequence

CIITA
NM_000246.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.211

Publications

6 publications found
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 Gene-Disease associations (from GenCC):
  • MHC class II deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 16-10901993-G-T is Benign according to our data. Variant chr16-10901993-G-T is described in ClinVar as Benign. ClinVar VariationId is 1184676.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.562 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000246.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CIITA
NM_000246.4
MANE Select
c.482-45G>T
intron
N/ANP_000237.2
CIITA
NM_001286402.1
c.485-45G>T
intron
N/ANP_001273331.1A0A087X2I7
CIITA
NM_001379332.1
c.485-45G>T
intron
N/ANP_001366261.1A0A087X2I7

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CIITA
ENST00000324288.14
TSL:1 MANE Select
c.482-45G>T
intron
N/AENSP00000316328.8
CIITA
ENST00000381835.9
TSL:1
c.481+435G>T
intron
N/AENSP00000371257.5P33076-3
CIITA
ENST00000537380.1
TSL:1
n.482-45G>T
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.467
AC:
70886
AN:
151726
Hom.:
17843
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.295
Gnomad AMI
AF:
0.754
Gnomad AMR
AF:
0.388
Gnomad ASJ
AF:
0.457
Gnomad EAS
AF:
0.429
Gnomad SAS
AF:
0.522
Gnomad FIN
AF:
0.586
Gnomad MID
AF:
0.472
Gnomad NFE
AF:
0.567
Gnomad OTH
AF:
0.465
GnomAD2 exomes
AF:
0.497
AC:
123574
AN:
248642
AF XY:
0.512
show subpopulations
Gnomad AFR exome
AF:
0.285
Gnomad AMR exome
AF:
0.324
Gnomad ASJ exome
AF:
0.451
Gnomad EAS exome
AF:
0.434
Gnomad FIN exome
AF:
0.592
Gnomad NFE exome
AF:
0.568
Gnomad OTH exome
AF:
0.499
GnomAD4 exome
AF:
0.553
AC:
807245
AN:
1459512
Hom.:
227569
Cov.:
41
AF XY:
0.554
AC XY:
402406
AN XY:
726158
show subpopulations
African (AFR)
AF:
0.290
AC:
9690
AN:
33448
American (AMR)
AF:
0.330
AC:
14772
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.452
AC:
11811
AN:
26130
East Asian (EAS)
AF:
0.408
AC:
16192
AN:
39698
South Asian (SAS)
AF:
0.539
AC:
46470
AN:
86194
European-Finnish (FIN)
AF:
0.580
AC:
30384
AN:
52398
Middle Eastern (MID)
AF:
0.555
AC:
2869
AN:
5168
European-Non Finnish (NFE)
AF:
0.579
AC:
643738
AN:
1111486
Other (OTH)
AF:
0.520
AC:
31319
AN:
60278
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
19471
38942
58412
77883
97354
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
17658
35316
52974
70632
88290
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.467
AC:
70904
AN:
151844
Hom.:
17844
Cov.:
31
AF XY:
0.465
AC XY:
34550
AN XY:
74234
show subpopulations
African (AFR)
AF:
0.295
AC:
12207
AN:
41400
American (AMR)
AF:
0.388
AC:
5921
AN:
15266
Ashkenazi Jewish (ASJ)
AF:
0.457
AC:
1582
AN:
3464
East Asian (EAS)
AF:
0.429
AC:
2211
AN:
5150
South Asian (SAS)
AF:
0.523
AC:
2513
AN:
4806
European-Finnish (FIN)
AF:
0.586
AC:
6177
AN:
10538
Middle Eastern (MID)
AF:
0.476
AC:
140
AN:
294
European-Non Finnish (NFE)
AF:
0.567
AC:
38493
AN:
67912
Other (OTH)
AF:
0.463
AC:
974
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
1777
3555
5332
7110
8887
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
650
1300
1950
2600
3250
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.508
Hom.:
9282
Bravo
AF:
0.445
Asia WGS
AF:
0.388
AC:
1349
AN:
3478

ClinVar

ClinVar submissions
Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
MHC class II deficiency (1)
-
-
1
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
1.7
DANN
Benign
0.72
PhyloP100
-0.21
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs6498124; hg19: chr16-10995850; COSMIC: COSV60853906; COSMIC: COSV60853906; API