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GeneBe

4-73484292-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001133.2(AFM):c.172G>C(p.Ala58Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,244 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

AFM
NM_001133.2 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.316
Variant links:
Genes affected
AFM (HGNC:316): (afamin) This gene is a member of the albumin gene family, which is comprised of four genes that localize to chromosome 4 in a tandem arrangement. These four genes encode structurally-related serum transport proteins that are known to be evolutionarily related. The protein encoded by this gene is regulated developmentally, expressed in the liver and secreted into the bloodstream. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
AFMNM_001133.2 linkuse as main transcriptc.172G>C p.Ala58Pro missense_variant 3/15 ENST00000226355.5
AFMXM_017007842.3 linkuse as main transcriptc.172G>C p.Ala58Pro missense_variant 3/13
AFMXM_017007843.3 linkuse as main transcriptc.172G>C p.Ala58Pro missense_variant 3/11
AFMXM_017007844.3 linkuse as main transcriptc.172G>C p.Ala58Pro missense_variant 3/11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
AFMENST00000226355.5 linkuse as main transcriptc.172G>C p.Ala58Pro missense_variant 3/151 NM_001133.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152174
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
250526
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135422
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000265
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000192
AC:
28
AN:
1461070
Hom.:
0
Cov.:
31
AF XY:
0.0000165
AC XY:
12
AN XY:
726836
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000252
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152174
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74340
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2

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 GeneticsJul 26, 2023The c.172G>C (p.A58P) alteration is located in exon 3 (coding exon 3) of the AFM gene. This alteration results from a G to C substitution at nucleotide position 172, causing the alanine (A) at amino acid position 58 to be replaced by a proline (P). 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
0.63
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
0.020
Cadd
Uncertain
25
Dann
Uncertain
1.0
DEOGEN2
Benign
0.11
T
Eigen
Uncertain
0.54
Eigen_PC
Uncertain
0.47
FATHMM_MKL
Benign
0.42
N
LIST_S2
Benign
0.69
T
M_CAP
Benign
0.012
T
MetaRNN
Uncertain
0.72
D
MetaSVM
Benign
-0.66
T
MutationAssessor
Pathogenic
3.0
M
MutationTaster
Benign
0.95
N
PrimateAI
Benign
0.40
T
PROVEAN
Uncertain
-3.4
D
REVEL
Benign
0.26
Sift
Uncertain
0.0090
D
Sift4G
Uncertain
0.055
T
Polyphen
1.0
D
Vest4
0.59
MVP
0.59
MPC
0.077
ClinPred
0.90
D
GERP RS
4.2
Varity_R
0.90
gMVP
0.60

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.15
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: rs768090251; hg19: chr4-74350009; API