8-129855736-T-C

Variant summary

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

The NM_001353258.2(CYRIB):ā€‹c.313A>Gā€‹(p.Arg105Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000256 in 1,602,770 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 10/14 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 32)
Exomes š‘“: 0.000026 ( 1 hom. )

Consequence

CYRIB
NM_001353258.2 missense

Scores

2
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.36
Variant links:
Genes affected
CYRIB (HGNC:25216): (CYFIP related Rac1 interactor B) Enables small GTPase binding activity. Involved in several processes, including cellular response to molecule of bacterial origin; negative regulation of small GTPase mediated signal transduction; and regulation of organelle organization. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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=0.023310035).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYRIBNM_001353258.2 linkuse as main transcriptc.313A>G p.Arg105Gly missense_variant 8/14 ENST00000694912.1 NP_001340187.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CYRIBENST00000694912.1 linkuse as main transcriptc.313A>G p.Arg105Gly missense_variant 8/14 NM_001353258.2 ENSP00000511587 P4Q9NUQ9-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152196
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:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000619
AC:
15
AN:
242352
Hom.:
0
AF XY:
0.0000839
AC XY:
11
AN XY:
131124
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 SAS exome
AF:
0.000520
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000262
AC:
38
AN:
1450456
Hom.:
1
Cov.:
30
AF XY:
0.0000416
AC XY:
30
AN XY:
721440
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000427
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.02e-7
Gnomad4 OTH exome
AF:
0.0000167
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152314
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000621
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000824
AC:
10

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 GeneticsJan 04, 2024The c.313A>G (p.R105G) alteration is located in exon 9 (coding exon 4) of the FAM49B gene. This alteration results from a A to G substitution at nucleotide position 313, causing the arginine (R) at amino acid position 105 to be replaced by a glycine (G). 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
0.24
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.33
CADD
Benign
22
DANN
Uncertain
0.99
Eigen
Benign
-0.39
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Benign
0.33
T;T
M_CAP
Benign
0.0082
T
MetaRNN
Benign
0.023
T;T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D
Sift4G
Benign
0.47
T;.
Vest4
0.20
MVP
0.49
ClinPred
0.090
T
GERP RS
-0.88
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

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: rs556972913; hg19: chr8-130867982; API