chr22-19353502-G-A

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_003325.4(HIRA):​c.2702C>T​(p.Ala901Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000354 in 1,610,004 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

HIRA
NM_003325.4 missense

Scores

1
4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.05
Variant links:
Genes affected
HIRA (HGNC:4916): (histone cell cycle regulator) This gene encodes a histone chaperone that preferentially places the variant histone H3.3 in nucleosomes. Orthologs of this gene in yeast, flies, and plants are necessary for the formation of transcriptionally silent heterochomatin. This gene plays an important role in the formation of the senescence-associated heterochromatin foci. These foci likely mediate the irreversible cell cycle changes that occur in senescent cells. It is considered the primary candidate gene in some haploinsufficiency syndromes such as DiGeorge syndrome, and insufficient production of the gene may disrupt normal embryonic development. [provided by RefSeq, Jul 2008]
C22orf39 (HGNC:27012): (chromosome 22 open reading frame 39)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.3195886).
BS2
High AC in GnomAdExome4 at 56 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HIRANM_003325.4 linkuse as main transcriptc.2702C>T p.Ala901Val missense_variant 23/25 ENST00000263208.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HIRAENST00000263208.5 linkuse as main transcriptc.2702C>T p.Ala901Val missense_variant 23/251 NM_003325.4 P1P54198-1
HIRAENST00000340170.8 linkuse as main transcriptc.2081C>T p.Ala694Val missense_variant 19/211 P54198-2
C22orf39ENST00000509549.5 linkuse as main transcriptc.*2472C>T 3_prime_UTR_variant, NMD_transcript_variant 23/242

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152238
Hom.:
0
Cov.:
33
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000689
AC:
17
AN:
246632
Hom.:
0
AF XY:
0.0000975
AC XY:
13
AN XY:
133298
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000529
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000899
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000384
AC:
56
AN:
1457766
Hom.:
0
Cov.:
32
AF XY:
0.0000524
AC XY:
38
AN XY:
725046
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:
0.000559
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.0000831
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152238
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74378
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:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 submitterclinical testingAmbry GeneticsJul 20, 2022The c.2702C>T (p.A901V) alteration is located in exon 23 (coding exon 23) of the HIRA gene. This alteration results from a C to T substitution at nucleotide position 2702, causing the alanine (A) at amino acid position 901 to be replaced by a valine (V). 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
0.14
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.18
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.39
.;T
Eigen
Uncertain
0.32
Eigen_PC
Uncertain
0.46
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.062
D
MetaRNN
Benign
0.32
T;T
MetaSVM
Benign
-0.55
T
MutationAssessor
Benign
1.9
.;L
MutationTaster
Benign
1.0
D;D;D;N
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-1.6
N;N
REVEL
Benign
0.24
Sift
Benign
0.040
D;D
Sift4G
Benign
0.28
T;T
Polyphen
0.14
B;B
Vest4
0.57
MutPred
0.52
.;Loss of disorder (P = 0.0841);
MVP
0.57
MPC
0.42
ClinPred
0.14
T
GERP RS
5.1
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.7
Varity_R
0.44
gMVP
0.49

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.

Other links and lift over

dbSNP: rs782132936; hg19: chr22-19341025; API