dbSNP rs143739249: STAMBP:p.Arg38Ser (chr2-73830968-C-A) – ACMG Classification: Likely_pathogenic (8 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1PM2PM5PP3_Moderate

The NM_213622.4(STAMBP):c.112C>A(p.Arg38Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R38H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

STAMBP
NM_213622.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.94

Publications

0 publications found

Variant links:

Genes affected

STAMBP (HGNC:16950): (STAM binding protein) Cytokine-mediated signal transduction in the JAK-STAT cascade requires the involvement of adaptor molecules. One such signal-transducing adaptor molecule contains an SH3 domain that is required for induction of MYC and cell growth. The protein encoded by this gene binds to the SH3 domain of the signal-transducing adaptor molecule, and plays a critical role in cytokine-mediated signaling for MYC induction and cell cycle progression. Multiple alternatively spliced transcript variants encoding the same protein isoform have been found for this gene. [provided by RefSeq, Jul 2008]

STAMBP Gene-Disease associations (from GenCC):

microcephaly-capillary malformation syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Orphanet

STAMBP links:

ENSG00000293671 (HGNC:):

ENSG00000293671 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 4 uncertain in NM_213622.4

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr2-73830968-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 50793.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.847

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
STAMBP	NM_213622.4 link	c.112C>A	p.Arg38Ser	missense_variant	Exon 2 of 10	ENST00000394070.7	NP_998787.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
STAMBP	ENST00000394070.7 link	c.112C>A	p.Arg38Ser	missense_variant	Exon 2 of 10	1	NM_213622.4	ENSP00000377633.2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000629

AC:

AN:

1111994

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.518

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.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.26

BayesDel_noAF

Uncertain

0.13

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.95

D;D;.;.;D;.;D;.

Eigen

Uncertain

0.23

Eigen_PC

Benign

0.16

FATHMM_MKL

Uncertain

0.86

LIST_S2

Uncertain

0.95

.;D;D;D;.;D;.;D

M_CAP

Uncertain

0.27

MetaRNN

Pathogenic

0.85

D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.47

MutationAssessor

Pathogenic

3.1

M;M;.;.;M;.;M;.

PhyloP100

2.9

PrimateAI

Uncertain

0.70

PROVEAN

Pathogenic

-5.1

D;D;D;D;D;D;D;D

REVEL

Uncertain

0.40

Sift

Uncertain

0.0040

D;D;D;D;D;D;D;D

Sift4G

Uncertain

0.0070

D;D;D;D;D;D;D;D

Polyphen

0.99

D;D;.;.;D;.;D;.

Vest4

0.93

MutPred

0.77

Loss of MoRF binding (P = 0.038);Loss of MoRF binding (P = 0.038);Loss of MoRF binding (P = 0.038);Loss of MoRF binding (P = 0.038);Loss of MoRF binding (P = 0.038);Loss of MoRF binding (P = 0.038);Loss of MoRF binding (P = 0.038);Loss of MoRF binding (P = 0.038);

MVP

0.71

MPC

0.96

ClinPred

0.99

GERP RS

2.9

PromoterAI

-0.13

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.90

gMVP

0.84

Mutation Taster

=8/92

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over