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GeneBe

17-28758709-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001077498.3(FAM222B):c.1250C>T(p.Ala417Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000909 in 1,595,600 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000092 ( 0 hom. )

Consequence

FAM222B
NM_001077498.3 missense

Scores

6
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.29
Variant links:
Genes affected
FAM222B (HGNC:25563): (family with sequence similarity 222 member B) Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.13551146).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FAM222BNM_001077498.3 linkuse as main transcriptc.1250C>T p.Ala417Val missense_variant 3/3 ENST00000581407.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FAM222BENST00000581407.6 linkuse as main transcriptc.1250C>T p.Ala417Val missense_variant 3/31 NM_001077498.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000965
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000118
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000108
AC:
24
AN:
221582
Hom.:
0
AF XY:
0.0000993
AC XY:
12
AN XY:
120796
show subpopulations
Gnomad AFR exome
AF:
0.0000778
Gnomad AMR exome
AF:
0.0000322
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000224
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000921
AC:
133
AN:
1443390
Hom.:
0
Cov.:
33
AF XY:
0.0000895
AC XY:
64
AN XY:
715420
show subpopulations
Gnomad4 AFR exome
AF:
0.0000603
Gnomad4 AMR exome
AF:
0.0000948
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000118
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000106
Gnomad4 OTH exome
AF:
0.000151
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74362
show subpopulations
Gnomad4 AFR
AF:
0.0000965
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000119
Hom.:
0
Bravo
AF:
0.0000756
ExAC
AF:
0.0000580
AC:
7
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsNov 15, 2021The c.1250C>T (p.A417V) alteration is located in exon 4 (coding exon 2) of the FAM222B gene. This alteration results from a C to T substitution at nucleotide position 1250, causing the alanine (A) at amino acid position 417 to be replaced by a valine (V). 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
0.15
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.37
Cadd
Uncertain
24
Dann
Uncertain
0.99
Eigen
Benign
0.14
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Uncertain
0.84
D
LIST_S2
Uncertain
0.91
D;.;D
M_CAP
Benign
0.0084
T
MetaRNN
Benign
0.14
T;T;T
MetaSVM
Benign
-0.97
T
MutationTaster
Benign
0.61
D;D;D;D
PrimateAI
Uncertain
0.67
T
REVEL
Benign
0.065
Sift4G
Uncertain
0.053
T;D;D
Polyphen
0.66
.;P;P
Vest4
0.24
MutPred
0.30
.;Gain of catalytic residue at A417 (P = 0.0499);Gain of catalytic residue at A417 (P = 0.0499);
MVP
0.043
MPC
0.14
ClinPred
0.044
T
GERP RS
3.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.11
gMVP
0.45

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs753217058; hg19: chr17-27085727; COSMIC: COSV100368762; COSMIC: COSV100368762; API