NM_002185.5:c.703_705delTCAinsCTT

Variant names:

• chr5-35873645-TCA-CTT
• NM_002185.5:c.703_705delTCAinsCTT
• IL7R p.Ser235Leu

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_002185.5(IL7R):​c.703_705delTCAinsCTT​(p.Ser235Leu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. It is difficult to determine the true allele frequency of this variant because it is of type MNV, and the frequency of such variant types in population databases may be underestimated and unreliable. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. The gene IL7R is included in the ClinGen Criteria Specification Registry.

• Frequency: Genomes: not found (cov: 32)
• Consequence: IL7R NM_002185.5 missense, splice_region
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.491
• Publications: 0 publications found

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: ClinGen, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• 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

ACMG classification

Specifications for IL7R are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IL7R	NM_002185.5	MANE Select	c.703_705delTCAinsCTT	p.Ser235Leu	missense splice_region	N/A	NP_002176.2
	IL7R	NM_001437964.1		c.703_705delTCAinsCTT	p.Ser235Leu	missense splice_region	N/A	NP_001424893.1
	IL7R	NM_001410734.1		c.703_705delTCAinsCTT	p.Ser235Leu	missense splice_region	N/A	NP_001397663.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IL7R	ENST00000303115.8	TSL:1 MANE Select	c.703_705delTCAinsCTT	p.Ser235Leu	missense splice_region	N/A	ENSP00000306157.3	P16871-1
	IL7R	ENST00000877114.1		c.703_705delTCAinsCTT	p.Ser235Leu	missense splice_region	N/A	ENSP00000547173.1
	IL7R	ENST00000506850.5	TSL:2	c.703_705delTCAinsCTT	p.Ser235Leu	missense splice_region	N/A	ENSP00000421207.1	P16871-3

Frequencies

GnomAD3 genomes Cov.: 32

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		0.49

Splicing

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: chr5-35873747;