11-14458653-T-C

Variant names:

• chr11-14458653-T-C
• NM_001144061.2:c.2681A>G

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM2 PP2 PP3_Strong

The NM_001144061.2(COPB1):​c.2681A>G​(p.Asn894Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000089 in 1,460,398 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 30)
  • Exomes 𝑓: 0.0000089 (0 hom.)
• Consequence: COPB1 NM_001144061.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.73
• Publications: 0 publications found

Genes affected

COPB1 (HGNC:2231): (COPI coat complex subunit beta 1) This gene encodes a protein subunit of the coatomer complex associated with non-clathrin coated vesicles. The coatomer complex, also known as the coat protein complex 1, forms in the cytoplasm and is recruited to the Golgi by activated guanosine triphosphatases. Once at the Golgi membrane, the coatomer complex may assist in the movement of protein and lipid components back to the endoplasmic reticulum. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jan 2009]

COPB1 Gene-Disease associations (from GenCC):

• Baralle-Macken syndrome

  Inheritance: Unknown, AR Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P

ACMG classification

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 2 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 2.3822 (below the threshold of 3.09). Trascript score misZ: 2.5602 (below the threshold of 3.09). GenCC associations: The gene is linked to Baralle-Macken syndrome.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.961

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001144061.2. 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
	COPB1	NM_001144061.2	MANE Select	c.2681A>G	p.Asn894Ser	missense	Exon 21 of 22	NP_001137533.1	P53618
	COPB1	NM_001144062.2		c.2681A>G	p.Asn894Ser	missense	Exon 21 of 22	NP_001137534.1	P53618
	COPB1	NM_016451.5		c.2681A>G	p.Asn894Ser	missense	Exon 21 of 22	NP_057535.1	P53618

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COPB1	ENST00000439561.7	TSL:1 MANE Select	c.2681A>G	p.Asn894Ser	missense	Exon 21 of 22	ENSP00000397873.2	P53618
	COPB1	ENST00000249923.7	TSL:1	c.2681A>G	p.Asn894Ser	missense	Exon 21 of 22	ENSP00000249923.3	P53618
	COPB1	ENST00000890285.1		c.2789A>G	p.Asn930Ser	missense	Exon 22 of 23	ENSP00000560344.1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome AF: 0.00000890 AC: 13 AN: 1460398 Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5 AN XY: 726472

African (AFR) AF: 0.00 AC: 0 AN: 33360

American (AMR) AF: 0.00 AC: 0 AN: 44486

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26084

East Asian (EAS) AF: 0.00 AC: 0 AN: 39628

South Asian (SAS) AF: 0.00 AC: 0 AN: 85926

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53400

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5758

European-Non Finnish (NFE) AF: 0.00000990 AC: 11 AN: 1111440

Other (OTH) AF: 0.0000332 AC: 2 AN: 60316

GnomAD4 genome Cov.: 30

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.83
BayesDel_addAF	Uncertain	0.024	T
BayesDel_noAF	Benign	-0.20
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.71	D
Eigen	Pathogenic	0.93
Eigen_PC	Pathogenic	0.86
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Pathogenic	1.0	D
M_CAP	Benign	0.040	D
MetaRNN	Pathogenic	0.96	D
MetaSVM	Uncertain	0.25	D
MutationAssessor	Uncertain	2.8	M
PhyloP100		7.7
PrimateAI	Uncertain	0.77	T
PROVEAN	Uncertain	-4.3	D
REVEL	Pathogenic	0.66
Sift	Uncertain	0.0020	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.93
MutPred		0.86		Gain of helix (P = 0.132)
MVP		0.73
MPC		0.69
ClinPred		0.99	D
GERP RS		5.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.54
gMVP		0.80
Mutation Taster		=32/68	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

hg19: chr11-14480199;