Genetic Variant PROP1:p.Arg112Gly (chr5-177994114-G-C) – ACMG Classification: Likely_pathogenic (8 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong

The NM_006261.5(PROP1):c.334C>G(p.Arg112Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,546 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R112Q) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PROP1
NM_006261.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.04

Publications

4 publications found

Variant links:

Genes affected

PROP1 (HGNC:9455): (PROP paired-like homeobox 1) This gene encodes a paired-like homeodomain transcription factor in the developing pituitary gland. Expression occurs prior to and is required for expression of pou domain transcription factor 1, which is responsible for pituitary development and hormone expression. Mutations in this gene have been associated with combined pituitary hormone deficiency-2 as well as deficiencies in luteinizing hormone, follicle-stimulating hormone, growth hormone, prolactin, and thyroid-stimulating hormone. [provided by RefSeq, Sep 2011]

PROP1 Gene-Disease associations (from GenCC):

pituitary hormone deficiency, combined, 2
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Myriad Women’s Health, Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
combined pituitary hormone deficiencies, genetic form
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
hypothyroidism due to deficient transcription factors involved in pituitary development or function
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
panhypopituitarism
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

PROP1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM1

In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 5 uncertain in NM_006261.5

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.974

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PROP1	NM_006261.5 link	c.334C>G	p.Arg112Gly	missense_variant	Exon 2 of 3	ENST00000308304.2	NP_006252.4	O75360A0A0G2JQ02

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PROP1	ENST00000308304.2 link	c.334C>G	p.Arg112Gly	missense_variant	Exon 2 of 3	1	NM_006261.5	ENSP00000311290.2		O75360

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000399

AC:

AN:

250632

AF XY:

0.00000737

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461546

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727090

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111700

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.94

BayesDel_addAF

Pathogenic

0.48

BayesDel_noAF

Pathogenic

0.45

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.90

Eigen

Benign

0.18

Eigen_PC

Benign

-0.016

FATHMM_MKL

Benign

0.49

LIST_S2

Benign

0.83

M_CAP

Uncertain

0.21

MetaRNN

Pathogenic

0.97

MetaSVM

Pathogenic

0.94

MutationAssessor

Pathogenic

3.6

PhyloP100

2.0

PrimateAI

Uncertain

0.54

PROVEAN

Pathogenic

-6.7

REVEL

Pathogenic

0.88

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0030

Polyphen

0.90

Vest4

0.75

MutPred

0.86

Loss of MoRF binding (P = 0.0269);

MVP

0.97

MPC

0.55

ClinPred

0.92

GERP RS

0.70

Varity_R

0.81

gMVP

0.89

Mutation Taster

=42/58

disease causing

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over