rs28580600

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000883.4(IMPDH1):​c.1405+33C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.122 in 1,613,794 control chromosomes in the GnomAD database, including 13,051 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.13 ( 1236 hom., cov: 33)
Exomes 𝑓: 0.12 ( 11815 hom. )

Consequence

IMPDH1
NM_000883.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.73
Variant links:
Genes affected
IMPDH1 (HGNC:6052): (inosine monophosphate dehydrogenase 1) The protein encoded by this gene acts as a homotetramer to regulate cell growth. The encoded protein is an enzyme that catalyzes the synthesis of xanthine monophosphate (XMP) from inosine-5'-monophosphate (IMP). This is the rate-limiting step in the de novo synthesis of guanine nucleotides. Defects in this gene are a cause of retinitis pigmentosa type 10 (RP10). Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.93).
BP6
Variant 7-128395098-G-A is Benign according to our data. Variant chr7-128395098-G-A is described in ClinVar as [Benign]. Clinvar id is 1291045.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.141 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IMPDH1NM_000883.4 linkuse as main transcriptc.1405+33C>T intron_variant ENST00000338791.11 NP_000874.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IMPDH1ENST00000338791.11 linkuse as main transcriptc.1405+33C>T intron_variant 2 NM_000883.4 ENSP00000345096 P20839-6

Frequencies

GnomAD3 genomes
AF:
0.125
AC:
19018
AN:
152098
Hom.:
1235
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.144
Gnomad AMI
AF:
0.163
Gnomad AMR
AF:
0.0980
Gnomad ASJ
AF:
0.133
Gnomad EAS
AF:
0.000578
Gnomad SAS
AF:
0.0314
Gnomad FIN
AF:
0.120
Gnomad MID
AF:
0.165
Gnomad NFE
AF:
0.135
Gnomad OTH
AF:
0.150
GnomAD3 exomes
AF:
0.104
AC:
26137
AN:
251140
Hom.:
1716
AF XY:
0.103
AC XY:
14014
AN XY:
135810
show subpopulations
Gnomad AFR exome
AF:
0.144
Gnomad AMR exome
AF:
0.0739
Gnomad ASJ exome
AF:
0.135
Gnomad EAS exome
AF:
0.000435
Gnomad SAS exome
AF:
0.0303
Gnomad FIN exome
AF:
0.118
Gnomad NFE exome
AF:
0.138
Gnomad OTH exome
AF:
0.129
GnomAD4 exome
AF:
0.122
AC:
178238
AN:
1461578
Hom.:
11815
Cov.:
35
AF XY:
0.120
AC XY:
86983
AN XY:
727102
show subpopulations
Gnomad4 AFR exome
AF:
0.148
Gnomad4 AMR exome
AF:
0.0801
Gnomad4 ASJ exome
AF:
0.137
Gnomad4 EAS exome
AF:
0.000252
Gnomad4 SAS exome
AF:
0.0310
Gnomad4 FIN exome
AF:
0.118
Gnomad4 NFE exome
AF:
0.134
Gnomad4 OTH exome
AF:
0.122
GnomAD4 genome
AF:
0.125
AC:
19030
AN:
152216
Hom.:
1236
Cov.:
33
AF XY:
0.121
AC XY:
8991
AN XY:
74428
show subpopulations
Gnomad4 AFR
AF:
0.144
Gnomad4 AMR
AF:
0.0977
Gnomad4 ASJ
AF:
0.133
Gnomad4 EAS
AF:
0.000579
Gnomad4 SAS
AF:
0.0317
Gnomad4 FIN
AF:
0.120
Gnomad4 NFE
AF:
0.135
Gnomad4 OTH
AF:
0.148
Alfa
AF:
0.0853
Hom.:
138
Bravo
AF:
0.128
Asia WGS
AF:
0.0270
AC:
94
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.93
CADD
Benign
0.013
DANN
Benign
0.35

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: rs28580600; hg19: chr7-128035152; API