4-118723600-A-G

Variant names:

• chr4-118723600-A-G
• rs1725254711
• NM_014822.4:c.3014T>C

Variant summary

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

The NM_014822.4(SEC24D):​c.3014T>C​(p.Val1005Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,680 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. V1005G) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SEC24D NM_014822.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 8.95
• Publications: 0 publications found

Genes affected

SEC24D (HGNC:10706): (SEC24 homolog D, 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. This gene product is implicated in the shaping of the vesicle, and also in cargo selection and concentration. Mutations in this gene have been associated with Cole-Carpenter syndrome, a disorder affecting bone formation, resulting in craniofacial malformations and bones that break easily. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Dec 2015]

SEC24D Gene-Disease associations (from GenCC):

• Cole-Carpenter syndrome 2

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• Cole-Carpenter syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• osteogenesis imperfecta type 1

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• epilepsy

  Inheritance: AR Classification: LIMITED Submitted by: Ambry Genetics

ACMG classification

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_014822.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SEC24D	NM_014822.4	MANE Select	c.3014T>C	p.Val1005Ala	missense	Exon 23 of 23	NP_055637.2	O94855-1
	SEC24D	NM_001318066.2		c.3017T>C	p.Val1006Ala	missense	Exon 23 of 23	NP_001304995.1	O94855-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SEC24D	ENST00000280551.11	TSL:1 MANE Select	c.3014T>C	p.Val1005Ala	missense	Exon 23 of 23	ENSP00000280551.6	O94855-1
	SEC24D	ENST00000511481.5	TSL:1	c.1907T>C	p.Val636Ala	missense	Exon 16 of 16	ENSP00000425491.1	E9PDM8
	SEC24D	ENST00000924655.1		c.3014T>C	p.Val1005Ala	missense	Exon 23 of 23	ENSP00000594714.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461680 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 727144

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26126

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86224

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111874

Other (OTH) AF: 0.00 AC: 0 AN: 60390

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.38
BayesDel_addAF	Pathogenic	0.27	D
BayesDel_noAF	Pathogenic	0.15
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Benign	0.31	T
Eigen	Pathogenic	0.75
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.040	D
MetaRNN	Uncertain	0.71	D
MetaSVM	Benign	-0.67	T
MutationAssessor	Uncertain	2.9	M
PhyloP100		8.9
PrimateAI	Uncertain	0.56	T
PROVEAN	Uncertain	-3.1	D
REVEL	Uncertain	0.51
Sift	Benign	0.037	D
Sift4G	Uncertain	0.054	T
Polyphen		0.96	D
Vest4		0.77
MutPred		0.58		Loss of stability (P = 0.059)
MVP		0.60
MPC		0.72
ClinPred		0.99	D
GERP RS		5.5
Varity_R		0.52
gMVP		0.65
Mutation Taster		=14/86	disease causing

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

Other links and lift over

dbSNP: rs1725254711; hg19: chr4-119644755;