10-73763526-A-G

Position:

• chr10-73763526-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_198597.3(SEC24C):​c.1024A>G​(p.Thr342Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: SEC24C NM_198597.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.56

Genes affected

SEC24C (HGNC:10705): (SEC24 homolog C, COPII coat complex component) The protein encoded by this gene is a member of the SEC24 subfamily of the SEC23/SEC24 family, which is involved in vesicle trafficking. The encoded protein has similarity to yeast Sec24p component of COPII. COPII is the coat protein complex responsible for vesicle budding from the ER. The product of this gene may play a role in shaping the vesicle, as well as in cargo selection and concentration. Alternatively spliced transcript variants encoding the same protein have been identified. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.15851068).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SEC24C	NM_198597.3	c.1024A>G	p.Thr342Ala	missense_variant	7/23	ENST00000345254.9	NP_940999.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SEC24C	ENST00000345254.9	c.1024A>G	p.Thr342Ala	missense_variant	7/23	1	NM_198597.3	ENSP00000321845	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

May 16, 2024

The c.1024A>G (p.T342A) alteration is located in exon 8 (coding exon 6) of the SEC24C gene. This alteration results from a A to G substitution at nucleotide position 1024, causing the threonine (T) at amino acid position 342 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	0.065
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Benign	0.017	T;T;T
Eigen	Benign	-0.30
Eigen_PC	Benign	-0.10
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Benign	0.74	.;T;T
M_CAP	Benign	0.022	T
MetaRNN	Benign	0.16	T;T;T
MetaSVM	Benign	-0.75	T
MutationAssessor	Benign	0.34	N;N;.
MutationTaster	Benign	1.0	D;D;D;N;N;N
PrimateAI	Benign	0.39	T
PROVEAN	Benign	0.51	N;N;.
REVEL	Benign	0.24
Sift	Benign	0.12	T;T;.
Sift4G	Benign	0.23	T;T;T
Polyphen		0.0	B;B;.
Vest4		0.18
MutPred		0.19		Loss of glycosylation at T342 (P = 0.0285);Loss of glycosylation at T342 (P = 0.0285);.;
MVP		0.62
MPC		0.42
ClinPred		0.49	T
GERP RS		4.4
Varity_R		0.18
gMVP		0.57

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr10-75523284;