NM_014339.7:c.1918G>C

Variant names:

• chr22-17109137-G-C
• NM_014339.7:c.1918G>C
• IL17RA p.Gly640Arg

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_014339.7(IL17RA):​c.1918G>C​(p.Gly640Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/22 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 nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G640E) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 34)
• Consequence: IL17RA NM_014339.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -3.43
• Publications: 0 publications found

Genes affected

IL17RA (HGNC:5985): (interleukin 17 receptor A) Interleukin 17A (IL17A) is a proinflammatory cytokine secreted by activated T-lymphocytes. It is a potent inducer of the maturation of CD34-positive hematopoietic precursors into neutrophils. The transmembrane protein encoded by this gene (interleukin 17A receptor; IL17RA) is a ubiquitous type I membrane glycoprotein that binds with low affinity to interleukin 17A. Interleukin 17A and its receptor play a pathogenic role in many inflammatory and autoimmune diseases such as rheumatoid arthritis. Like other cytokine receptors, this receptor likely has a multimeric structure. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Feb 2014]

IL17RA Gene-Disease associations (from GenCC):

• immunodeficiency 51

  Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
• chronic mucocutaneous candidiasis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.031158507).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014339.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IL17RA	NM_014339.7	MANE Select	c.1918G>C	p.Gly640Arg	missense	Exon 13 of 13	NP_055154.3
	IL17RA	NM_001289905.2		c.1816G>C	p.Gly606Arg	missense	Exon 12 of 12	NP_001276834.1	Q96F46-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IL17RA	ENST00000319363.11	TSL:1 MANE Select	c.1918G>C	p.Gly640Arg	missense	Exon 13 of 13	ENSP00000320936.6	Q96F46-1
	IL17RA	ENST00000940705.1		c.1906G>C	p.Gly636Arg	missense	Exon 12 of 12	ENSP00000610764.1
	IL17RA	ENST00000612619.2	TSL:5	c.1816G>C	p.Gly606Arg	missense	Exon 12 of 12	ENSP00000479970.1	Q96F46-2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome Cov.: 47

GnomAD4 genome Cov.: 34

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.097
BayesDel_addAF	Benign	-0.39	T
BayesDel_noAF	Benign	-0.80
CADD	Benign	0.0010
DANN	Benign	0.54
DEOGEN2	Benign	0.075	T
Eigen	Benign	-1.9
Eigen_PC	Benign	-2.1
FATHMM_MKL	Benign	0.053	N
LIST_S2	Benign	0.25	T
M_CAP	Benign	0.0064	T
MetaRNN	Benign	0.031	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.95	L
PhyloP100		-3.4
PrimateAI	Benign	0.24	T
PROVEAN	Benign	-0.57	N
REVEL	Benign	0.016
Sift	Benign	0.63	T
Sift4G	Benign	0.65	T
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.069
gMVP		0.27
Mutation Taster		=97/3	polymorphism

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr22-17590027;