19-1462109-C-T

Variant names:

• chr19-1462109-C-T
• rs537258047
• NM_005883.3:c.1785C>T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Moderate BP6_Moderate BP7

The NM_005883.3(APC2):​c.1785C>T​(p.Ala595Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,612,896 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency:
  • Genomes: 𝑓 0.000039 (0 hom., cov: 31)
  • Exomes 𝑓: 0.000011 (0 hom.)
• Consequence: APC2 NM_005883.3 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:2
• Conservation: PhyloP100: 0.653
• Publications: 0 publications found

Genes affected

APC2 (HGNC:24036): (APC regulator of WNT signaling pathway 2) This gene encodes a strongly conserved protein that has an N-terminal coiled-coil domain followed by an armadillo domain, five 20-amino acid repeats, and two SAMP domains. This protein promotes the assembly of a multiprotein complex that recruits and phosphorylates the Wnt effector beta-catenin and targets beta-catenin for ubiquitylation and proteasomal degradation. This protein therefore plays a role in the reduction of cytoplasmic levels of beta-catenin which in turn reduces activation of Wnt target genes that play a pivotal role in the pathogenesis of various human cancers. The protein encoded by this gene is closely related to the adenomatous polyposis coli (APC) tumor-suppressor protein and has similar tumor-suppressor effects. This gene also plays a role in actin assembly, cell-cell adhesion, and microtubule network formation through its interaction with cytoskeletal proteins. This gene has its highest expression in the central nervous system and is involved in brain development through cytoskeletal regulation in neurons. Alternative splicing produces multiple transcript variants encoding distinct isoforms. [provided by RefSeq, May 2017]

C19orf25 (HGNC:26711): (chromosome 19 open reading frame 25)

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.37).
• BP6: Variant 19-1462109-C-T is Benign according to our data. Variant chr19-1462109-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 2039455.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=0.653 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005883.3. 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
	APC2	NM_005883.3	MANE Select	c.1785C>T	p.Ala595Ala	synonymous	Exon 14 of 15	NP_005874.1	O95996-1
	APC2	NM_001351273.1		c.1782C>T	p.Ala594Ala	synonymous	Exon 13 of 14	NP_001338202.1	O95996-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	APC2	ENST00000590469.6	TSL:1 MANE Select	c.1785C>T	p.Ala595Ala	synonymous	Exon 14 of 15	ENSP00000467073.2	O95996-1
	APC2	ENST00000233607.6	TSL:1	c.1785C>T	p.Ala595Ala	synonymous	Exon 14 of 15	ENSP00000233607.2	O95996-1
	APC2	ENST00000535453.5	TSL:1	c.1785C>T	p.Ala595Ala	synonymous	Exon 13 of 14	ENSP00000442954.1	O95996-1

Frequencies

GnomAD3 genomes AF: 0.0000394 AC: 6 AN: 152168 Hom.: 0 Cov.: 31

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000393

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000160 AC: 4 AN: 249658 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000868

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.000164

GnomAD4 exome AF: 0.0000110 AC: 16 AN: 1460610 Hom.: 0 Cov.: 39 AF XY: 0.00000413 AC XY: 3 AN XY: 726584

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.000313 AC: 14 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52186

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111986

Other (OTH) AF: 0.0000166 AC: 1 AN: 60384

GnomAD4 genome AF: 0.0000394 AC: 6 AN: 152286 Hom.: 0 Cov.: 31 AF XY: 0.0000269 AC XY: 2 AN XY: 74454

African (AFR) AF: 0.00 AC: 0 AN: 41570

American (AMR) AF: 0.000392 AC: 6 AN: 15290

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5164

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68020

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000264

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	APC2-related disorder (1)
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.37
CADD	Benign	8.0
DANN	Benign	0.94
PhyloP100		0.65

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs537258047; hg19: chr19-1462108;