rs80338762

Variant names:

• chr17-77402314-C-T
• rs80338762
• NM_001113491.2:c.332C>T
• SEPTIN9 p.Ser111Phe

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP5

The NM_001113491.2(SEPTIN9):​c.332C>T​(p.Ser111Phe) variant causes a missense 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 (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SEPTIN9 NM_001113491.2 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1 O:1
• Conservation: PhyloP100: 7.40
• Publications: 9 publications found

Genes affected

SEPTIN9 (HGNC:7323): (septin 9) This gene is a member of the septin family involved in cytokinesis and cell cycle control. This gene is a candidate for the ovarian tumor suppressor gene. Mutations in this gene cause hereditary neuralgic amyotrophy, also known as neuritis with brachial predilection. A chromosomal translocation involving this gene on chromosome 17 and the MLL gene on chromosome 11 results in acute myelomonocytic leukemia. Multiple alternatively spliced transcript variants encoding different isoforms have been described.[provided by RefSeq, Mar 2009]

SEPTIN9 Gene-Disease associations (from GenCC):

• amyotrophic neuralgia

  Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia
• neuralgic amyotrophy

  Inheritance: AD Classification: MODERATE Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 17-77402314-C-T is Pathogenic according to our data. Variant chr17-77402314-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 5864.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001113491.2. 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
	SEPTIN9	NM_001113491.2	MANE Select	c.332C>T	p.Ser111Phe	missense	Exon 3 of 12	NP_001106963.1	Q9UHD8-1
	SEPTIN9	NM_006640.5	MANE Plus Clinical	c.278C>T	p.Ser93Phe	missense	Exon 2 of 11	NP_006631.2	Q9UHD8-2
	SEPTIN9	NM_001113493.2		c.311C>T	p.Ser104Phe	missense	Exon 2 of 11	NP_001106965.1	Q9UHD8-5

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SEPTIN9	ENST00000427177.6	TSL:1 MANE Select	c.332C>T	p.Ser111Phe	missense	Exon 3 of 12	ENSP00000391249.1	Q9UHD8-1
	SEPTIN9	ENST00000329047.13	TSL:1 MANE Plus Clinical	c.278C>T	p.Ser93Phe	missense	Exon 2 of 11	ENSP00000329161.8	Q9UHD8-2
	SEPTIN9	ENST00000423034.6	TSL:1	c.311C>T	p.Ser104Phe	missense	Exon 2 of 11	ENSP00000405877.1	Q9UHD8-5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

Alfa AF: 0.000143 Hom.: 0

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Amyotrophic neuralgia (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.66
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.24
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Benign	0.16	T
Eigen	Uncertain	0.65
Eigen_PC	Pathogenic	0.66
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.97	D
M_CAP	Benign	0.069	D
MetaRNN	Uncertain	0.72	D
MetaSVM	Benign	-0.79	T
MutationAssessor	Uncertain	2.8	M
PhyloP100		7.4
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-1.5	N
REVEL	Uncertain	0.34
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0040	D
Varity_R		0.40
gMVP		0.57
Mutation Taster		=118/182	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

dbSNP: rs80338762;

hg19: chr17-75398396;