NM_001164484.2:c.556T>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001164484.2(FAM170B):​c.556T>C​(p.Cys186Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000123 in 1,548,060 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000086 ( 0 hom. )

Consequence

FAM170B
NM_001164484.2 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.861

Publications

0 publications found
Variant links:
Genes affected
FAM170B (HGNC:19736): (family with sequence similarity 170 member B) Predicted to be involved in fertilization; positive regulation of acrosome reaction; and regulation of fertilization. Located in acrosomal vesicle. [provided by Alliance of Genome Resources, Apr 2022]
FAM170B-AS1 (HGNC:45006): (FAM170B antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.07867086).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001164484.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FAM170B
NM_001164484.2
MANE Select
c.556T>Cp.Cys186Arg
missense
Exon 2 of 2NP_001157956.1A6NMN3
FAM170B-AS1
NR_038973.1
n.439-3747A>G
intron
N/A

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
FAM170B
ENST00000311787.6
TSL:1 MANE Select
c.556T>Cp.Cys186Arg
missense
Exon 2 of 2ENSP00000308292.6A6NMN3
FAM170B-AS1
ENST00000435809.2
TSL:3
n.424-3968A>G
intron
N/A
FAM170B-AS1
ENST00000442525.5
TSL:2
n.439-3747A>G
intron
N/A

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152238
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000262
AC:
4
AN:
152810
AF XY:
0.0000123
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000667
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000860
AC:
12
AN:
1395822
Hom.:
0
Cov.:
86
AF XY:
0.0000102
AC XY:
7
AN XY:
688596
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31596
American (AMR)
AF:
0.00
AC:
0
AN:
35696
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25182
East Asian (EAS)
AF:
0.00
AC:
0
AN:
35738
South Asian (SAS)
AF:
0.00
AC:
0
AN:
79230
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45904
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5696
European-Non Finnish (NFE)
AF:
0.0000111
AC:
12
AN:
1078808
Other (OTH)
AF:
0.00
AC:
0
AN:
57972
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152238
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000923
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000380
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.59
CADD
Benign
15
DANN
Benign
0.41
DEOGEN2
Benign
0.0081
T
Eigen
Benign
-1.1
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.073
N
LIST_S2
Benign
0.42
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.079
T
MetaSVM
Benign
-0.97
T
MutationAssessor
Uncertain
2.2
M
PhyloP100
0.86
PrimateAI
Uncertain
0.49
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.058
Sift
Benign
0.16
T
Sift4G
Benign
0.062
T
Polyphen
0.037
B
Vest4
0.25
MutPred
0.38
Gain of helix (P = 0.0117)
MVP
0.32
ClinPred
0.059
T
GERP RS
-2.5
Varity_R
0.12
gMVP
0.27
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs749138610; hg19: chr10-50339954; API