Genetic Variant CRIM1:p.Thr102Pro (chr2-36356596-A-C) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_016441.3(CRIM1):c.304A>C(p.Thr102Pro) variant causes a missense change. The variant allele was found at a frequency of 0.000000686 in 1,458,638 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 Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

CRIM1
NM_016441.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.82

Publications

0 publications found

Variant links:

Genes affected

CRIM1 (HGNC:2359): (cysteine rich transmembrane BMP regulator 1) This gene encodes a transmembrane protein containing six cysteine-rich repeat domains and an insulin-like growth factor-binding domain. The encoded protein may play a role in tissue development though interactions with members of the transforming growth factor beta family, such as bone morphogenetic proteins. [provided by RefSeq, Nov 2010]

CRIM1 Gene-Disease associations (from GenCC):

colobomatous macrophthalmia-microcornea syndrome
Inheritance: AD, Unknown Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)

CRIM1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.4056587).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CRIM1	NM_016441.3 link	c.304A>C	p.Thr102Pro	missense_variant	Exon 1 of 17	ENST00000280527.7	NP_057525.1	Q9NZV1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CRIM1	ENST00000280527.7 link	c.304A>C	p.Thr102Pro	missense_variant	Exon 1 of 17	1	NM_016441.3	ENSP00000280527.2	Q9NZV1
CRIM1	ENST00000426856.1 link	c.154A>C	p.Thr52Pro	missense_variant	Exon 1 of 4	3		ENSP00000407636.1	H7C2T6
CRIM1	ENST00000428774.1 link	c.124A>C	p.Thr42Pro	missense_variant	Exon 1 of 2	3		ENSP00000415706.1	H7C458

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.86e-7

AC:

AN:

1458638

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

725716

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33440

American (AMR)

AF:

0.00

AC:

AN:

44662

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26098

East Asian (EAS)

AF:

0.00

AC:

AN:

39652

South Asian (SAS)

AF:

0.00

AC:

AN:

86164

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51108

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111442

Other (OTH)

AF:

0.00

AC:

AN:

60304

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 12, 2024

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.304A>C (p.T102P) alteration is located in exon 1 (coding exon 1) of the CRIM1 gene. This alteration results from a A to C substitution at nucleotide position 304, causing the threonine (T) at amino acid position 102 to be replaced by a proline (P). 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

0.19

BayesDel_addAF

Uncertain

0.019

BayesDel_noAF

Benign

-0.21

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.047

T;.

Eigen

Benign

-0.023

Eigen_PC

Benign

0.011

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.72

T;T

M_CAP

Pathogenic

0.79

MetaRNN

Benign

0.41

T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

0.26

N;.

PhyloP100

4.8

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.090

N;N

REVEL

Benign

0.25

Sift

Benign

0.15

T;T

Sift4G

Uncertain

0.014

D;T

Polyphen

0.74

P;.

Vest4

0.39

MutPred

0.30

Gain of disorder (P = 0.0713);.;

MVP

0.46

MPC

0.36

ClinPred

0.71

GERP RS

2.3

PromoterAI

0.0026

Neutral

(source)

Varity_R

0.12

gMVP

0.56

Mutation Taster

=39/61

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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2-36356596-A-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over