19-41687025-A-C

Position:

• chr19-41687025-A-C

Variant summary

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

The NM_001291485.2(CEACAM7):​c.261T>G​(p.Ser87Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000342 in 1,461,730 control chromosomes in the GnomAD database, including 1 homozygotes. 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: 0.0000034 (1 hom.)
• Consequence: CEACAM7 NM_001291485.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.0720

Genes affected

CEACAM7 (HGNC:1819): (CEA cell adhesion molecule 7) This gene encodes a cell surface glycoprotein and member of the carcinoembryonic antigen (CEA) family of proteins. Expression of this gene may be downregulated in colon and rectal cancer. Additionally, lower expression levels of this gene may be predictive of rectal cancer recurrence. This gene is present in a CEA family gene cluster on chromosome 19. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2015]

CEACAM7 (HGNC:):

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=0.114981145).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CEACAM7	NM_001291485.2	c.261T>G	p.Ser87Arg	missense_variant	2/5	ENST00000401731.6	NP_001278414.1
CEACAM7	NM_006890.5	c.261T>G	p.Ser87Arg	missense_variant	2/5		NP_008821.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CEACAM7	ENST00000401731.6	c.261T>G	p.Ser87Arg	missense_variant	2/5	2	NM_001291485.2	ENSP00000385932.1
CEACAM7	ENST00000006724.7	c.261T>G	p.Ser87Arg	missense_variant	2/5	1		ENSP00000006724.3
CEACAM7	ENST00000602225.1	c.261T>G	p.Ser87Arg	missense_variant	2/3	1		ENSP00000469597.1
CEACAM7	ENST00000599715.1	n.357T>G		non_coding_transcript_exon_variant	3/4	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461730 Hom.: 1 Cov.: 34 AF XY: 0.00000550 AC XY: 4 AN XY: 727178

Gnomad4 AFR exome AF: 0.000149

Gnomad4 AMR exome AF: 0.00

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.: 32

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

Dec 14, 2021

The c.261T>G (p.S87R) alteration is located in exon 2 (coding exon 2) of the CEACAM7 gene. This alteration results from a T to G substitution at nucleotide position 261, causing the serine (S) at amino acid position 87 to be replaced by an arginine (R). 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	0.31
BayesDel_addAF	Benign	-0.31	T
BayesDel_noAF	Benign	-0.68
CADD	Benign	11
DANN	Benign	0.48
DEOGEN2	Benign	0.030	.;.;T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.015	N
LIST_S2	Benign	0.26	.;.;T
M_CAP	Benign	0.00076	T
MetaRNN	Benign	0.11	T;T;T
MetaSVM	Benign	-1.0	T
PrimateAI	Benign	0.35	T
PROVEAN	Benign	-1.3	N;N;.
REVEL	Benign	0.077
Sift	Benign	0.15	T;T;.
Sift4G	Benign	0.15	T;T;T
Vest4		0.25
MutPred		0.51		Gain of MoRF binding (P = 0.0224);Gain of MoRF binding (P = 0.0224);Gain of MoRF binding (P = 0.0224);
MVP		0.13
MPC		0.019
ClinPred		0.15	T
GERP RS		-3.4
gMVP		0.20

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

Other links and lift over

dbSNP: rs868937694; hg19: chr19-42190956;