NM_005029.4:c.662G>C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2

The NM_005029.4(PITX3):c.662G>C(p.Gly221Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,492,368 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G221D) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

PITX3
NM_005029.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0520

Publications

1 publications found

Variant links:

Genes affected

PITX3 (HGNC:9006): (paired like homeodomain 3) This gene encodes a member of the RIEG/PITX homeobox family, which is in the bicoid class of homeodomain proteins. Members of this family act as transcription factors. This protein is involved in lens formation during eye development. Mutations of this gene have been associated with anterior segment mesenchymal dysgenesis and congenital cataracts. [provided by RefSeq, Jul 2008]

PITX3 links:

GBF1 (HGNC:4181): (golgi brefeldin A resistant guanine nucleotide exchange factor 1) This gene encodes a member of the Sec7 domain family. The encoded protein is a guanine nucleotide exchange factor that regulates the recruitment of proteins to membranes by mediating GDP to GTP exchange. The encoded protein is localized to the Golgi apparatus and plays a role in vesicular trafficking by activating ADP ribosylation factor 1. The encoded protein has also been identified as an important host factor for viral replication. Multiple transcript variants have been observed for this gene. [provided by RefSeq, Dec 2010]

GBF1 Gene-Disease associations (from GenCC):

axonal neuropathy
Inheritance: AD Classification: STRONG Submitted by: Franklin by Genoox

GBF1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 1 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 1.4984 (below the threshold of 3.09). Trascript score misZ: 0.65179 (below the threshold of 3.09). GenCC associations: The gene is linked to cataract 11 multiple types, cataract-glaucoma syndrome, early-onset posterior polar cataract, anterior segment dysgenesis 1.

BP4

Computational evidence support a benign effect (MetaRNN=0.091732025).

BS2

High AC in GnomAd4 at 5 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005029.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PITX3	NM_005029.4	MANE Select	c.662G>C	p.Gly221Ala	missense	Exon 4 of 4	NP_005020.1	O75364
GBF1	NM_001391923.1		c.-166C>G		5_prime_UTR	Exon 1 of 40	NP_001378852.1	Q92538-2
GBF1	NM_001391924.1		c.-304C>G		5_prime_UTR	Exon 1 of 41	NP_001378853.1	Q92538-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PITX3	ENST00000370002.8	TSL:1 MANE Select	c.662G>C	p.Gly221Ala	missense	Exon 4 of 4	ENSP00000359019.3	O75364

Frequencies

GnomAD3 genomes

AF:

0.0000330

AC:

AN:

151688

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.0000589

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000442

AC:

AN:

90402

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000143

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000159

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000299

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000418

AC:

AN:

1340680

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

659972

show subpopulations

African (AFR)

AF:

0.0000743

AC:

AN:

26936

American (AMR)

AF:

0.000119

AC:

AN:

25216

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

21894

East Asian (EAS)

AF:

0.0000308

AC:

AN:

32518

South Asian (SAS)

AF:

0.00

AC:

AN:

70686

European-Finnish (FIN)

AF:

0.00

AC:

AN:

46504

Middle Eastern (MID)

AF:

0.000212

AC:

AN:

4714

European-Non Finnish (NFE)

AF:

0.0000369

AC:

AN:

1056930

Other (OTH)

AF:

0.000181

AC:

AN:

55282

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

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:

0.0000330

AC:

AN:

151688

Hom.:

Cov.:

AF XY:

0.0000540

AC XY:

AN XY:

74098

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41296

American (AMR)

AF:

0.00

AC:

AN:

15246

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5154

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10530

Middle Eastern (MID)

AF:

0.00

AC:

AN:

314

European-Non Finnish (NFE)

AF:

0.0000589

AC:

AN:

67862

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

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:

0.00

Hom.:

Bravo

AF:

0.0000340

ClinVar

ClinVar submissions

Significance:Uncertain significance

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

AlphaMissense

Benign

0.072

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.40

CADD

Benign

0.59

(source)

DANN

Benign

0.80

DEOGEN2

Benign

0.12

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.0029

LIST_S2

Benign

0.55

M_CAP

Uncertain

0.16

MetaRNN

Benign

0.092

MetaSVM

Benign

-0.61

MutationAssessor

Benign

0.29

PhyloP100

0.052

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

0.030

REVEL

Benign

0.17

Sift

Benign

0.56

Sift4G

Benign

0.86

Polyphen

0.0010

Vest4

0.14

MutPred

0.33

Loss of catalytic residue at G221 (P = 0.0637)

MVP

0.20

MPC

1.8

ClinPred

0.031

GERP RS

0.52

Varity_R

0.026

gMVP

0.54

Mutation Taster

=96/4

polymorphism

(source)

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

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