Genetic Variant IL7R:p.Ser366Thr (chr5-35876202-T-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_002185.5(IL7R):c.1096T>A(p.Ser366Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,866 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 variant affecting the same amino acid position, but resulting in a different missense (i.e. S366P) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

IL7R
NM_002185.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.79

Publications

0 publications found

Variant links:

Genes affected

IL7R (HGNC:6024): (interleukin 7 receptor) The protein encoded by this gene is a receptor for interleukin 7 (IL7). The function of this receptor requires the interleukin 2 receptor, gamma chain (IL2RG), which is a common gamma chain shared by the receptors of various cytokines, including interleukins 2, 4, 7, 9, and 15. This protein has been shown to play a critical role in V(D)J recombination during lymphocyte development. Defects in this gene may be associated with severe combined immunodeficiency (SCID). Alternatively spliced transcript variants have been found. [provided by RefSeq, Dec 2015]

IL7R Gene-Disease associations (from GenCC):

immunodeficiency 104
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
Omenn syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
T-B+ severe combined immunodeficiency due to IL-7Ralpha deficiency
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

IL7R links:

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ACMG classification

Classification was made for transcript

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=0.055832088).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002185.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
IL7R	NM_002185.5	MANE Select	c.1096T>A	p.Ser366Thr	missense	Exon 8 of 8	NP_002176.2
IL7R	NM_001437964.1		c.*594T>A		3_prime_UTR	Exon 7 of 7	NP_001424893.1
IL7R	NM_001410734.1		c.*213T>A		3_prime_UTR	Exon 7 of 7	NP_001397663.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IL7R	ENST00000303115.8	TSL:1 MANE Select	c.1096T>A	p.Ser366Thr	missense	Exon 8 of 8	ENSP00000306157.3	P16871-1
IL7R	ENST00000505093.1	TSL:2	c.*213T>A		3_prime_UTR	Exon 3 of 3	ENSP00000426069.1	H0YA41
IL7R	ENST00000877114.1		c.783-62T>A		intron	N/A	ENSP00000547173.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461866

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727234

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112002

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.070

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.58

CADD

Benign

0.55

(source)

DANN

Benign

0.77

DEOGEN2

Benign

0.15

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.046

LIST_S2

Benign

0.27

M_CAP

Benign

0.0053

MetaRNN

Benign

0.056

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

PhyloP100

-1.8

PrimateAI

Benign

0.24

PROVEAN

Benign

-0.14

REVEL

Benign

0.027

Sift

Benign

0.071

Sift4G

Benign

0.075

Polyphen

0.0

Vest4

0.059

MutPred

0.24

Loss of disorder (P = 0.0778)

MVP

0.31

MPC

0.014

ClinPred

0.059

GERP RS

0.62

Varity_R

0.050

gMVP

0.29

Mutation Taster

=96/4

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over