Genetic Variant SNAPC4:p.Pro1359Leu (chr9-136377751-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_003086.4(SNAPC4):c.4076C>T(p.Pro1359Leu) variant causes a missense change. The variant allele was found at a frequency of 0.0000242 in 1,610,358 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

SNAPC4
NM_003086.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.14

Publications

0 publications found

Variant links:

Genes affected

SNAPC4 (HGNC:11137): (small nuclear RNA activating complex polypeptide 4) This gene encodes the largest subunit of the small nuclear RNA-activating protein (SNAP) complex. The encoded protein contains a Myb DNA-binding domain, and is essential for RNA polymerase II and III polymerase transcription from small nuclear RNA promoters. A mutation in this gene is associated with ankylosing spondylitis. [provided by RefSeq, Jul 2016]

SNAPC4 Gene-Disease associations (from GenCC):

neurodevelopmental disorder with motor regression, progressive spastic paraplegia, and oromotor dysfunction
Inheritance: AR Classification: MODERATE Submitted by: G2P, Baylor College of Medicine Research Center

SNAPC4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003086.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SNAPC4	NM_003086.4	MANE Select	c.4076C>T	p.Pro1359Leu	missense	Exon 22 of 24	NP_003077.2	Q5SXM2
SNAPC4	NM_001394201.1		c.4076C>T	p.Pro1359Leu	missense	Exon 22 of 24	NP_001381130.1	Q5SXM2
SNAPC4	NM_001394202.1		c.3992C>T	p.Pro1331Leu	missense	Exon 22 of 24	NP_001381131.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SNAPC4	ENST00000684778.1	MANE Select	c.4076C>T	p.Pro1359Leu	missense	Exon 22 of 24	ENSP00000510559.1	Q5SXM2
SNAPC4	ENST00000298532.2	TSL:1	c.4076C>T	p.Pro1359Leu	missense	Exon 21 of 23	ENSP00000298532.2	Q5SXM2
SNAPC4	ENST00000637388.2	TSL:5	c.4076C>T	p.Pro1359Leu	missense	Exon 22 of 24	ENSP00000490037.2	Q5SXM2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000370

AC:

AN:

243454

AF XY:

0.0000301

show subpopulations

Gnomad AFR exome

AF:

0.000194

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000462

Gnomad OTH exome

AF:

0.000168

GnomAD4 exome

AF:

0.0000240

AC:

AN:

1458182

Hom.:

Cov.:

AF XY:

0.0000166

AC XY:

AN XY:

725054

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33436

American (AMR)

AF:

0.00

AC:

AN:

44602

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26022

East Asian (EAS)

AF:

0.00

AC:

AN:

39608

South Asian (SAS)

AF:

0.00

AC:

AN:

86142

European-Finnish (FIN)

AF:

0.0000193

AC:

AN:

51860

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.0000261

AC:

AN:

1110520

Other (OTH)

AF:

0.0000166

AC:

AN:

60238

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

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:

0.0000263

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74336

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41442

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:

5190

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.0000941

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68006

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.538

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:

0.0000283

Hom.:

Bravo

AF:

0.0000340

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000580

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.40

BayesDel_addAF

Uncertain

0.028

BayesDel_noAF

Uncertain

0.090

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.23

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.86

M_CAP

Pathogenic

0.38

MetaRNN

Uncertain

0.59

MetaSVM

Uncertain

0.22

MutationAssessor

Uncertain

2.4

PhyloP100

6.1

PrimateAI

Uncertain

0.59

PROVEAN

Pathogenic

-5.2

REVEL

Uncertain

0.63

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.42

MVP

0.87

ClinPred

0.83

GERP RS

4.1

Varity_R

0.36

gMVP

0.57

Mutation Taster

=70/30

polymorphism

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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