22-24313359-C-T

Position:

chr22-24313359-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PP2PP5BP4BS1_SupportingBS2

The NM_015330.6(SPECC1L):c.200C>T(p.Thr67Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000254 in 1,613,918 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (no stars). Synonymous variant affecting the same amino acid position (i.e. T67T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

SPECC1L
NM_015330.6 missense

Scores

Clinical Significance

Likely pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 4.33

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 -4 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SPECC1L. . Gene score misZ 1.5985 (greater than the threshold 3.09). Trascript score misZ 3.1934 (greater than threshold 3.09). GenCC has associacion of gene with autosomal dominant Opitz G/BBB syndrome, hypertelorism, Teebi type, commissural facial cleft, Tessier number 4 facial cleft.

PP5

Variant 22-24313359-C-T is Pathogenic according to our data. Variant chr22-24313359-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 3256759.Status of the report is no_assertion_criteria_provided, 0 stars.

BP4

Computational evidence support a benign effect (MetaRNN=0.13056424). . Strength limited to SUPPORTING due to the PP5.

BS1

Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.0000253 (37/1461864) while in subpopulation SAS AF= 0.000128 (11/86256). AF 95% confidence interval is 0.0000712. There are 0 homozygotes in gnomad4_exome. There are 17 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 37 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SPECC1L	NM_015330.6 linkuse as main transcript	c.200C>T	p.Thr67Met	missense_variant	4/17	ENST00000314328.14
SPECC1L-ADORA2A	NR_103546.1 linkuse as main transcript	n.508C>T		non_coding_transcript_exon_variant	4/20
SPECC1L	NM_001145468.4 linkuse as main transcript	c.200C>T	p.Thr67Met	missense_variant	3/16
SPECC1L	NM_001254732.3 linkuse as main transcript	c.200C>T	p.Thr67Met	missense_variant	3/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SPECC1L	ENST00000314328.14 linkuse as main transcript	c.200C>T	p.Thr67Met	missense_variant	4/17	1	NM_015330.6	P1	Q69YQ0-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152054

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000278

AC:

AN:

251476

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135912

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000867

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000253

AC:

AN:

1461864

Hom.:

Cov.:

AF XY:

0.0000234

AC XY:

AN XY:

727230

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000671

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.000128

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152054

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74274

show subpopulations

Gnomad4 AFR

AF:

0.0000242

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

Teebi hypertelorism syndrome 1

Pathogenic:1

Likely pathogenic, no assertion criteria provided

provider interpretation

Solve-RD Consortium

Jun 01, 2022

Variant confirmed as disease-causing by referring clinical team -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.092

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

0.99

Eigen

Benign

-0.097

Eigen_PC

Benign

-0.13

FATHMM_MKL

Uncertain

0.81

LIST_S2

Uncertain

0.93

.;D;.;.;D

M_CAP

Benign

0.018

MetaRNN

Benign

0.13

T;T;T;T;T

MetaSVM

Benign

-0.85

MutationTaster

Benign

1.0

N;N;N

PrimateAI

Benign

0.46

PROVEAN

Benign

-0.98

N;N;N;N;D

REVEL

Benign

0.081

Sift

Uncertain

0.0060

D;D;D;D;D

Sift4G

Uncertain

0.037

D;D;D;D;D

Vest4

0.33

MutPred

0.21

Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);.;

MVP

0.39

MPC

0.52

ClinPred

0.32

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

gMVP

0.21

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