1-67169370-C-A

Variant names:

• chr1-67169370-C-A
• NM_144701.3:c.99C>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_144701.3(IL23R):​c.99C>A​(p.His33Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,304 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H33R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: IL23R NM_144701.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.156

Genes affected

IL23R (HGNC:19100): (interleukin 23 receptor) The protein encoded by this gene is a subunit of the receptor for IL23A/IL23. This protein pairs with the receptor molecule IL12RB1/IL12Rbeta1, and both are required for IL23A signaling. This protein associates constitutively with Janus kinase 2 (JAK2), and also binds to transcription activator STAT3 in a ligand-dependent manner. [provided by RefSeq, Jul 2008]

C1orf141 (HGNC:32044): (chromosome 1 open reading frame 141)

ACMG classification

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=0.16226128).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IL23R	NM_144701.3	c.99C>A	p.His33Gln	missense_variant	Exon 3 of 11	ENST00000347310.10	NP_653302.2
IL23R	XM_011540790.4	c.99C>A	p.His33Gln	missense_variant	Exon 3 of 11		XP_011539092.1
IL23R	XM_011540791.4	c.99C>A	p.His33Gln	missense_variant	Exon 3 of 11		XP_011539093.1
IL23R	XM_047447227.1	c.99C>A	p.His33Gln	missense_variant	Exon 3 of 11		XP_047303183.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IL23R	ENST00000347310.10	c.99C>A	p.His33Gln	missense_variant	Exon 3 of 11	1	NM_144701.3	ENSP00000321345.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460304 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726550

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: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.082	T
BayesDel_noAF	Benign	-0.36
CADD	Benign	13
DANN	Benign	0.87
DEOGEN2	Benign	0.34	T
Eigen	Benign	-0.65
Eigen_PC	Benign	-0.65
FATHMM_MKL	Benign	0.056	N
LIST_S2	Benign	0.54	T
M_CAP	Benign	0.025	D
MetaRNN	Benign	0.16	T
MetaSVM	Benign	-0.91	T
MutationAssessor	Benign	1.9	M
PrimateAI	Benign	0.38	T
PROVEAN	Benign	-0.92	N
REVEL	Benign	0.097
Sift	Benign	0.22	T
Sift4G	Benign	0.28	T
Polyphen		0.23	B
Vest4		0.24
MutPred		0.50		Loss of sheet (P = 0.1907);
MVP		0.75
MPC		0.54
ClinPred		0.13	T
GERP RS		1.3
Varity_R		0.21
gMVP		0.58

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-67635053; COSMIC: COSV61374657;