dbSNP rs72624962: IMPDH1:c.1165+14C>T (chr7-128396918-G-A) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_000883.4(IMPDH1):c.1165+14C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000369 in 1,598,030 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

IMPDH1
NM_000883.4 intron

Scores

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.455

Publications

0 publications found

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]

IMPDH1 Gene-Disease associations (from GenCC):

IMPDH1-related retinopathy
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
Leber congenital amaurosis 11
Inheritance: AD Classification: DEFINITIVE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
retinitis pigmentosa 10
Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
Leber congenital amaurosis
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
retinitis pigmentosa
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

IMPDH1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.82).

BP6

Variant 7-128396918-G-A is Benign according to our data. Variant chr7-128396918-G-A is described in ClinVar as Benign. ClinVar VariationId is 1590682.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 13 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000883.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
IMPDH1	NM_000883.4	MANE Select	c.1165+14C>T	intron	N/A	NP_000874.2
IMPDH1	NM_001102605.2		c.1135+14C>T	intron	N/A	NP_001096075.1	P20839-5
IMPDH1	NM_001142576.2		c.1066+14C>T	intron	N/A	NP_001136048.1	P20839-7

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
IMPDH1	ENST00000338791.11	TSL:2 MANE Select	c.1165+14C>T	intron	N/A	ENSP00000345096.6	P20839-6
IMPDH1	ENST00000348127.11	TSL:1	c.1057+14C>T	intron	N/A	ENSP00000265385.8	P20839-3
IMPDH1	ENST00000955327.1		c.1057+14C>T	intron	N/A	ENSP00000625386.1

Frequencies

GnomAD3 genomes

AF:

0.0000854

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000196

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000771

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.000171

AC:

AN:

250790

AF XY:

0.000140

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.000463

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000761

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000177

Gnomad OTH exome

AF:

0.00163

GnomAD4 exome

AF:

0.0000318

AC:

AN:

1445766

Hom.:

Cov.:

AF XY:

0.0000194

AC XY:

AN XY:

720146

show subpopulations

African (AFR)

AF:

0.0000302

AC:

AN:

33134

American (AMR)

AF:

0.000492

AC:

AN:

44696

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26056

East Asian (EAS)

AF:

0.000227

AC:

AN:

39630

South Asian (SAS)

AF:

0.0000116

AC:

AN:

85946

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53254

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5238

European-Non Finnish (NFE)

AF:

0.00000637

AC:

AN:

1098056

Other (OTH)

AF:

0.000100

AC:

AN:

59756

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000854

AC:

AN:

152264

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74454

show subpopulations

African (AFR)

AF:

0.0000963

AC:

AN:

41552

American (AMR)

AF:

0.000196

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000773

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68022

Other (OTH)

AF:

0.000474

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000142

Hom.:

Bravo

AF:

0.0000831

ClinVar

ClinVar submissions as Germline

Significance:Benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.82

CADD

Benign

1.5

(source)

DANN

Benign

0.69

PhyloP100

0.46

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over