chr12-112450356-CTGG-C

Variant names:

• chr12-112450356-CTGG-C
• rs80338836
• NM_002834.5:c.179_181delGTG

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1 PM2 PM4_Supporting PP5_Moderate

The NM_002834.5(PTPN11):​c.179_181delGTG​(p.Gly60del) variant causes a disruptive inframe deletion change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PTPN11 NM_002834.5 disruptive_inframe_deletion
• Clinical Significance: Pathogenic criteria provided, single submitter P:2 O:1
• Conservation: PhyloP100: 9.99
• Publications: 1 publications found

Genes affected

PTPN11 (HGNC:9644): (protein tyrosine phosphatase non-receptor type 11) The protein encoded by this gene is a member of the protein tyrosine phosphatase (PTP) family. PTPs are known to be signaling molecules that regulate a variety of cellular processes including cell growth, differentiation, mitotic cycle, and oncogenic transformation. This PTP contains two tandem Src homology-2 domains, which function as phospho-tyrosine binding domains and mediate the interaction of this PTP with its substrates. This PTP is widely expressed in most tissues and plays a regulatory role in various cell signaling events that are important for a diversity of cell functions, such as mitogenic activation, metabolic control, transcription regulation, and cell migration. Mutations in this gene are a cause of Noonan syndrome as well as acute myeloid leukemia. [provided by RefSeq, Aug 2016]

PTPN11 Gene-Disease associations (from GenCC):

• LEOPARD syndrome 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae)
• Noonan syndrome

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• Noonan syndrome 1

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P, Genomics England PanelApp
• Noonan syndrome with multiple lentigines

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
• metachondromatosis

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
• cardiofaciocutaneous syndrome

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
• Costello syndrome

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
• Noonan syndrome-like disorder with loose anagen hair

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PM1: In a hotspot region, there are 23 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in NM_002834.5
• PM2: Very rare variant in population databases, with high coverage
• PM4: Nonframeshift variant in NON repetitive region in NM_002834.5. Strenght limited to Supporting due to length of the change: 1aa.
• PP5: Variant 12-112450356-CTGG-C is Pathogenic according to our data. Variant chr12-112450356-CTGG-C is described in ClinVar as Pathogenic. ClinVar VariationId is 13346.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002834.5. 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
	PTPN11	NM_002834.5	MANE Select	c.179_181delGTG	p.Gly60del	disruptive_inframe_deletion	Exon 3 of 16	NP_002825.3
	PTPN11	NM_001330437.2		c.179_181delGTG	p.Gly60del	disruptive_inframe_deletion	Exon 3 of 16	NP_001317366.1	Q06124-1
	PTPN11	NM_001374625.1		c.176_178delGTG	p.Gly59del	disruptive_inframe_deletion	Exon 3 of 16	NP_001361554.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PTPN11	ENST00000351677.7	TSL:1 MANE Select	c.179_181delGTG	p.Gly60del	disruptive_inframe_deletion	Exon 3 of 16	ENSP00000340944.3	Q06124-2
	PTPN11	ENST00000635625.1	TSL:5	c.179_181delGTG	p.Gly60del	disruptive_inframe_deletion	Exon 3 of 15	ENSP00000489597.1	Q06124-1
	PTPN11	ENST00000392597.5	TSL:1	c.179_181delGTG	p.Gly60del	disruptive_inframe_deletion	Exon 3 of 11	ENSP00000376376.1	Q06124-3

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

ClinVar submissions

Significance: Pathogenic

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
1	-	-	Noonan syndrome 1 (2)
1	-	-	RASopathy (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		10
Mutation Taster		=15/85	disease causing (ClinVar)

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

Other links and lift over

dbSNP: rs80338836; hg19: chr12-112888160;