Genetic Variant SP8:p.Ala327Pro (chr7-20784838-C-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_182700.6(SP8):c.979G>C(p.Ala327Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000131 in 1,525,578 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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. A327G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 7.3e-7 ( 0 hom. )

Consequence

SP8
NM_182700.6 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.656

Publications

0 publications found

Variant links:

Genes affected

SP8 (HGNC:19196): (Sp8 transcription factor) The protein encoded by this gene is an SP family transcription factor that in mouse has been shown to be essential for proper limb development. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jun 2011]

SP8 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.09320128).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_182700.6. 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
	SP8	NM_182700.6	MANE Select	c.979G>C	p.Ala327Pro	missense	Exon 2 of 2	NP_874359.2
	SP8	NM_198956.4		c.925G>C	p.Ala309Pro	missense	Exon 3 of 3	NP_945194.1	Q8IXZ3-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SP8	ENST00000418710.3	TSL:1 MANE Select	c.979G>C	p.Ala327Pro	missense	Exon 2 of 2	ENSP00000408792.2	Q8IXZ3-4
	SP8	ENST00000361443.4	TSL:1	c.925G>C	p.Ala309Pro	missense	Exon 3 of 3	ENSP00000354482.4	Q8IXZ3-3

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

7.28e-7

AC:

AN:

1373394

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

677576

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

29492

American (AMR)

AF:

0.00

AC:

AN:

34916

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24704

East Asian (EAS)

AF:

0.00

AC:

AN:

34548

South Asian (SAS)

AF:

0.00

AC:

AN:

78138

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35222

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4110

European-Non Finnish (NFE)

AF:

9.30e-7

AC:

AN:

1075000

Other (OTH)

AF:

0.00

AC:

AN:

57264

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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

AF:

0.00000657

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74346

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41456

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4838

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.55

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.13

Eigen

Benign

-0.54

Eigen_PC

Benign

-0.41

FATHMM_MKL

Benign

0.69

LIST_S2

Benign

0.75

M_CAP

Benign

0.033

MetaRNN

Benign

0.093

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

PhyloP100

0.66

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.95

REVEL

Benign

0.017

Sift

Benign

0.19

Sift4G

Benign

0.22

Polyphen

0.025

Vest4

0.12

MutPred

0.36

Gain of glycosylation at A309 (P = 0.0427)

MVP

0.15

ClinPred

0.58

GERP RS

3.1

Varity_R

0.17

gMVP

0.50

Mutation Taster

=50/50

(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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over