12-13055794-C-T

Variant names:

• chr12-13055794-C-T
• rs146476799
• NM_020853.2:c.281C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_020853.2(FAM234B):​c.281C>T​(p.Ala94Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000366 in 1,614,176 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. 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. A94E) has been classified as Benign.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000039 (0 hom.)
• Consequence: FAM234B NM_020853.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.44
• Publications: 0 publications found

Genes affected

FAM234B (HGNC:29288): (family with sequence similarity 234 member B) Predicted to be located in Golgi apparatus and cytoskeleton. Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.14741069).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020853.2. 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
	FAM234B	NM_020853.2	MANE Select	c.281C>T	p.Ala94Val	missense	Exon 2 of 13	NP_065904.1	A2RU67

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	FAM234B	ENST00000197268.13	TSL:1 MANE Select	c.281C>T	p.Ala94Val	missense	Exon 2 of 13	ENSP00000197268.8	A2RU67
	FAM234B	ENST00000893327.1		c.281C>T	p.Ala94Val	missense	Exon 2 of 12	ENSP00000563386.1
	FAM234B	ENST00000416494.6	TSL:2	n.281C>T		non_coding_transcript_exon	Exon 2 of 14	ENSP00000394063.2	A2RU67

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152188 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000837 AC: 21 AN: 250942 AF XY: 0.0000958

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000882

Gnomad OTH exome AF: 0.000163

GnomAD4 exome AF: 0.0000390 AC: 57 AN: 1461870 Hom.: 0 Cov.: 32 AF XY: 0.0000536 AC XY: 39 AN XY: 727232

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

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.0000383 AC: 1 AN: 26136

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

South Asian (SAS) AF: 0.000452 AC: 39 AN: 86256

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

Middle Eastern (MID) AF: 0.000347 AC: 2 AN: 5768

European-Non Finnish (NFE) AF: 0.00000989 AC: 11 AN: 1111996

Other (OTH) AF: 0.0000662 AC: 4 AN: 60396

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152306 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74478

African (AFR) AF: 0.00 AC: 0 AN: 41564

American (AMR) AF: 0.00 AC: 0 AN: 15302

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5172

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4830

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: 0.0000147 AC: 1 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2110

Alfa AF: 0.00 Hom.: 6

Bravo AF: 0.0000113

ExAC AF: 0.0000659 AC: 8

EpiCase AF: 0.000164

EpiControl AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.089
BayesDel_addAF	Benign	-0.52	T
BayesDel_noAF	Benign	-0.62
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Benign	0.024	T
Eigen	Benign	0.17
Eigen_PC	Benign	0.21
FATHMM_MKL	Pathogenic	0.97	D
M_CAP	Uncertain	0.19	D
MetaRNN	Benign	0.15	T
MetaSVM	Benign	-0.95	T
PhyloP100		3.4
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-1.7	N
REVEL	Benign	0.053
Sift	Benign	0.056	T
Sift4G	Benign	0.088	T
Polyphen		0.74	P
Vest4		0.37
MutPred		0.29		Loss of relative solvent accessibility (P = 0.0186)
MVP		0.27
MPC		0.26
ClinPred		0.097	T
GERP RS		4.4
Varity_R		0.047
gMVP		0.24
Mutation Taster		=87/13	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.090		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: rs146476799; hg19: chr12-13208728; COSMIC: COSV99545651;