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GeneBe

4-17633788-T-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_015688.2(FAM184B):c.2990A>G(p.Asn997Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000387 in 1,551,512 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000029 ( 0 hom. )

Consequence

FAM184B
NM_015688.2 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.132
Variant links:
Genes affected
FAM184B (HGNC:29235): (family with sequence similarity 184 member B)
MED28 (HGNC:24628): (mediator complex subunit 28) Predicted to enable actin binding activity. Predicted to act upstream of or within negative regulation of smooth muscle cell differentiation and stem cell population maintenance. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.023225605).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
FAM184BNM_015688.2 linkuse as main transcriptc.2990A>G p.Asn997Ser missense_variant 17/18 ENST00000265018.4
MED28NM_025205.5 linkuse as main transcriptc.*9990T>C 3_prime_UTR_variant 4/4 ENST00000237380.12
FAM184BXM_047450066.1 linkuse as main transcriptc.2990A>G p.Asn997Ser missense_variant 17/17

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
FAM184BENST00000265018.4 linkuse as main transcriptc.2990A>G p.Asn997Ser missense_variant 17/181 NM_015688.2 P1
MED28ENST00000237380.12 linkuse as main transcriptc.*9990T>C 3_prime_UTR_variant 4/41 NM_025205.5 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
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
GnomAD3 exomes
AF:
0.00000637
AC:
1
AN:
156908
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
83046
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000915
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000286
AC:
4
AN:
1399350
Hom.:
0
Cov.:
31
AF XY:
0.00000435
AC XY:
3
AN XY:
690178
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000112
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74322
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000604

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 09, 2021The c.2990A>G (p.N997S) alteration is located in exon 17 (coding exon 17) of the FAM184B gene. This alteration results from a A to G substitution at nucleotide position 2990, causing the asparagine (N) at amino acid position 997 to be replaced by a serine (S). 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
0.057
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.76
Cadd
Benign
5.1
Dann
Benign
0.79
DEOGEN2
Benign
0.044
T
Eigen
Benign
-0.85
Eigen_PC
Benign
-0.84
FATHMM_MKL
Benign
0.041
N
LIST_S2
Benign
0.73
T
M_CAP
Benign
0.0049
T
MetaRNN
Benign
0.023
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.48
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.1
N
REVEL
Benign
0.038
Sift
Benign
0.28
T
Sift4G
Benign
0.66
T
Polyphen
0.036
B
Vest4
0.057
MVP
0.030
ClinPred
0.039
T
GERP RS
-1.3
Varity_R
0.049
gMVP
0.10

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: rs1221058083; hg19: chr4-17635411; API