Genetic Variant SPI1:p.Arg230Leu (chr11-47355351-C-A) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PM5PP3_Moderate

The NM_003120.3(SPI1):c.689G>T(p.Arg230Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,390 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging 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. R230P) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SPI1
NM_003120.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.68

Publications

0 publications found

Variant links:

Genes affected

SPI1 (HGNC:11241): (Spi-1 proto-oncogene) This gene encodes an ETS-domain transcription factor that activates gene expression during myeloid and B-lymphoid cell development. The nuclear protein binds to a purine-rich sequence known as the PU-box found near the promoters of target genes, and regulates their expression in coordination with other transcription factors and cofactors. The protein can also regulate alternative splicing of target genes. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

SPI1 Gene-Disease associations (from GenCC):

agammaglobulinemia 10, autosomal dominant
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), ClinGen

SPI1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr11-47355351-C-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 2672188.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.933

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003120.3. 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
	SPI1	NM_003120.3	MANE Select	c.689G>T	p.Arg230Leu	missense	Exon 5 of 5	NP_003111.2	P17947-1
	SPI1	NM_001080547.2		c.692G>T	p.Arg231Leu	missense	Exon 5 of 5	NP_001074016.1	P17947-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SPI1	ENST00000378538.8	TSL:1 MANE Select	c.689G>T	p.Arg230Leu	missense	Exon 5 of 5	ENSP00000367799.4	P17947-1
SPI1	ENST00000227163.8	TSL:2	c.692G>T	p.Arg231Leu	missense	Exon 5 of 5	ENSP00000227163.4	P17947-2
SPI1	ENST00000713543.1		c.428G>T	p.Arg143Leu	missense	Exon 7 of 7	ENSP00000518839.1	A0AAA9YHK5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461390

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727014

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44696

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26110

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.00

AC:

AN:

86244

European-Finnish (FIN)

AF:

0.0000188

AC:

AN:

53304

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111756

Other (OTH)

AF:

0.00

AC:

AN:

60356

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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.:

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

1.0

BayesDel_addAF

Pathogenic

0.30

BayesDel_noAF

Pathogenic

0.19

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.96

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.71

FATHMM_MKL

Uncertain

0.93

LIST_S2

Pathogenic

1.0

M_CAP

Uncertain

0.17

MetaRNN

Pathogenic

0.93

MetaSVM

Uncertain

-0.093

MutationAssessor

Pathogenic

3.7

PhyloP100

7.7

PrimateAI

Pathogenic

0.92

PROVEAN

Pathogenic

-6.2

REVEL

Pathogenic

0.73

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0

Polyphen

0.99

Vest4

0.95

MutPred

0.82

Gain of catalytic residue at R230 (P = 0.0109)

MVP

0.91

MPC

3.0

ClinPred

1.0

GERP RS

4.1

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.79

gMVP

0.95

Mutation Taster

=6/94

disease causing

(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