16-20427789-C-T

Variant summary

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

The NM_017888.3(ACSM5):​c.923C>T​(p.Thr308Ile) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,611,578 control chromosomes in the GnomAD database, with no homozygous occurrence. 13/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000020 ( 0 hom. )

Consequence

ACSM5
NM_017888.3 missense, splice_region

Scores

1
4
14
Splicing: ADA: 0.00008973
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.21
Variant links:
Genes affected
ACSM5 (HGNC:26060): (acyl-CoA synthetase medium chain family member 5) Predicted to enable fatty acid ligase activity and fatty-acyl-CoA synthase activity. Predicted to be involved in acyl-CoA metabolic process and fatty acid biosynthetic process. Predicted to be active in mitochondrial matrix. [provided by Alliance of Genome Resources, Apr 2022]

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 Protein UniProt
ACSM5NM_017888.3 linkuse as main transcriptc.923C>T p.Thr308Ile missense_variant, splice_region_variant 7/14 ENST00000331849.8 NP_060358.2
ACSM5NM_001324372.2 linkuse as main transcriptc.923C>T p.Thr308Ile missense_variant, splice_region_variant 7/14 NP_001311301.1
ACSM5NM_001324371.2 linkuse as main transcriptc.923C>T p.Thr308Ile missense_variant, splice_region_variant 7/14 NP_001311300.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACSM5ENST00000331849.8 linkuse as main transcriptc.923C>T p.Thr308Ile missense_variant, splice_region_variant 7/141 NM_017888.3 ENSP00000327916 P1Q6NUN0-1
ACSM5ENST00000570305.5 linkuse as main transcriptn.502C>T splice_region_variant, non_coding_transcript_exon_variant 3/53
ACSM5ENST00000574748.5 linkuse as main transcriptn.227C>T splice_region_variant, non_coding_transcript_exon_variant 2/43
ACSM5ENST00000573920.1 linkuse as main transcriptc.283-1889C>T intron_variant, NMD_transcript_variant 3 ENSP00000461752

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152188
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000398
AC:
10
AN:
251344
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135850
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000289
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000199
AC:
29
AN:
1459390
Hom.:
0
Cov.:
30
AF XY:
0.0000165
AC XY:
12
AN XY:
726186
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000268
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000126
Gnomad4 OTH exome
AF:
0.0000332
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74330
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000491
ExAC
AF:
0.00000824
AC:
1

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 06, 2023The c.923C>T (p.T308I) alteration is located in exon 7 (coding exon 6) of the ACSM5 gene. This alteration results from a C to T substitution at nucleotide position 923, causing the threonine (T) at amino acid position 308 to be replaced by an isoleucine (I). 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
0.12
BayesDel_addAF
Benign
-0.37
T
BayesDel_noAF
Benign
-0.46
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.033
T
Eigen
Benign
0.088
Eigen_PC
Benign
0.018
FATHMM_MKL
Benign
0.74
D
LIST_S2
Uncertain
0.92
D
M_CAP
Benign
0.012
T
MetaRNN
Uncertain
0.50
D
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
1.6
L
MutationTaster
Benign
0.93
D
PrimateAI
Uncertain
0.58
T
PROVEAN
Pathogenic
-4.5
D
REVEL
Benign
0.19
Sift
Benign
0.12
T
Sift4G
Benign
0.47
T
Polyphen
1.0
D
Vest4
0.48
MutPred
0.58
Gain of ubiquitination at K311 (P = 0.0462);
MVP
0.69
MPC
0.32
ClinPred
0.57
D
GERP RS
3.0
Varity_R
0.25
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000090
dbscSNV1_RF
Benign
0.0
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: rs138922279; hg19: chr16-20439111; API