22-24302337-A-G

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 3P and 8B. PM2PP2BP4_StrongBS2

The NM_015330.6(SPECC1L):c.106A>G(p.Thr36Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,856 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SPECC1L
NM_015330.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.156

Variant links:

Genes affected

SPECC1L (HGNC:29022): (sperm antigen with calponin homology and coiled-coil domains 1 like) This gene encodes a coiled-coil domain containing protein. The encoded protein may play a critical role in actin-cytoskeletal reorganization during facial morphogenesis. Mutations in this gene are a cause of oblique facial clefting-1. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. A read-through transcript composed of SPECC1L (sperm antigen with calponin homology and coiled-coil domains 1-like) and the downstream ADORA2A (adenosine A2a receptor) gene sequence has been identified, but it is thought to be non-coding. [provided by RefSeq, Jun 2013]

SPECC1L links:

SPECC1L-ADORA2A (HGNC:):

SPECC1L-ADORA2A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant where missense usually causes diseases, SPECC1L

BP4

Computational evidence support a benign effect (MetaRNN=0.036023587).

BS2

High AC in GnomAdExome at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SPECC1L	NM_015330.6 linkuse as main transcript	c.106A>G	p.Thr36Ala	missense_variant	3/17	ENST00000314328.14
SPECC1L-ADORA2A	NR_103546.1 linkuse as main transcript	n.414A>G		non_coding_transcript_exon_variant	3/20
SPECC1L	NM_001145468.4 linkuse as main transcript	c.106A>G	p.Thr36Ala	missense_variant	2/16
SPECC1L	NM_001254732.3 linkuse as main transcript	c.106A>G	p.Thr36Ala	missense_variant	2/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPECC1L	ENST00000314328.14 linkuse as main transcript	c.106A>G	p.Thr36Ala	missense_variant	3/17	1	NM_015330.6	P1	Q69YQ0-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

250920

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135696

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461856

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727234

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000894

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000113

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 28, 2023

The c.106A>G (p.T36A) alteration is located in exon 3 (coding exon 1) of the SPECC1L gene. This alteration results from a A to G substitution at nucleotide position 106, causing the threonine (T) at amino acid position 36 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.054

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.45

Cadd

Benign

0.64

Dann

Benign

0.86

Eigen

Benign

-1.4

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.033

M_CAP

Benign

0.0083

MetaRNN

Benign

0.036

T;T;T;T

MetaSVM

Benign

-1.0

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.40

PROVEAN

Benign

-0.98

N;N;N;N

REVEL

Benign

0.050

Sift

Benign

0.24

T;T;T;T

Sift4G

Benign

0.39

T;T;T;T

Vest4

0.038

MutPred

0.12

Loss of phosphorylation at T36 (P = 0.0354);Loss of phosphorylation at T36 (P = 0.0354);Loss of phosphorylation at T36 (P = 0.0354);Loss of phosphorylation at T36 (P = 0.0354);

MVP

0.61

MPC

0.38

ClinPred

0.020

GERP RS

-3.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

gMVP

0.15

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over