2-24183499-A-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001040710.3(FAM228A):​c.255A>T​(p.Lys85Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000224 in 1,610,156 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 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

FAM228A
NM_001040710.3 missense

Scores

3
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.913
Variant links:
Genes affected
FAM228A (HGNC:34418): (family with sequence similarity 228 member A)

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.34148002).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
FAM228ANM_001040710.3 linkuse as main transcriptc.255A>T p.Lys85Asn missense_variant 5/6 ENST00000295150.8 NP_001035800.1 Q86W67

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
FAM228AENST00000295150.8 linkuse as main transcriptc.255A>T p.Lys85Asn missense_variant 5/61 NM_001040710.3 ENSP00000295150.3 Q86W67
ENSG00000276087ENST00000610442.1 linkuse as main transcriptn.*1382A>T non_coding_transcript_exon_variant 13/142 ENSP00000483650.1 A0A087X0T9
ENSG00000276087ENST00000610442.1 linkuse as main transcriptn.*1382A>T 3_prime_UTR_variant 13/142 ENSP00000483650.1 A0A087X0T9

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152180
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000814
AC:
2
AN:
245700
Hom.:
0
AF XY:
0.00000751
AC XY:
1
AN XY:
133192
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000297
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:
0.00000892
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000226
AC:
33
AN:
1457976
Hom.:
0
Cov.:
31
AF XY:
0.0000221
AC XY:
16
AN XY:
724902
show subpopulations
Gnomad4 AFR exome
AF:
0.000331
Gnomad4 AMR exome
AF:
0.0000228
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:
0.00000720
Gnomad4 OTH exome
AF:
0.000183
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152180
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74358
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000122
AC:
1
ExAC
AF:
0.0000331
AC:
4
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsMar 30, 2024The c.255A>T (p.K85N) alteration is located in exon 5 (coding exon 4) of the FAM228A gene. This alteration results from a A to T substitution at nucleotide position 255, causing the lysine (K) at amino acid position 85 to be replaced by an asparagine (N). 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
Pathogenic
0.58
BayesDel_addAF
Benign
-0.077
T
BayesDel_noAF
Benign
-0.27
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.16
T
Eigen
Benign
-0.40
Eigen_PC
Benign
-0.52
FATHMM_MKL
Benign
0.48
N
LIST_S2
Benign
0.72
T
M_CAP
Benign
0.025
T
MetaRNN
Benign
0.34
T
MetaSVM
Benign
-0.99
T
MutationAssessor
Uncertain
2.5
M
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-3.9
D
REVEL
Benign
0.081
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.39
MutPred
0.23
Loss of solvent accessibility (P = 0.0079);
MVP
0.40
MPC
0.36
ClinPred
0.93
D
GERP RS
0.91
Varity_R
0.36
gMVP
0.029

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: rs372216146; hg19: chr2-24406368; API