Genetic Variant NM_030809.3:c.1324T>G (chr12-51064054-A-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_030809.3(CSRNP2):c.1324T>G(p.Ser442Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,884 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. 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. S442T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CSRNP2
NM_030809.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.201

Publications

0 publications found

Variant links:

Genes affected

CSRNP2 (HGNC:16006): (cysteine and serine rich nuclear protein 2) The protein encoded by this gene belongs to the CSRNP family of nuclear proteins that share conserved regions, including cysteine- and serine- rich regions, a basic domain, a transcriptional activation domain, and bind the sequence 'AGAGTG', thus have the hallmark of transcription factors. Studies in mice suggest that these genes may have redundant functions. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Aug 2011]

CSRNP2 links:

LETMD1 (HGNC:24241): (LETM1 domain containing 1) This gene encodes a mitochondrial outer membrane protein. It has a potential role in tumorigenesis, which may result from negative regulation of the p53 tumor suppressor gene. Alternatively spliced transcript variants have been noted for this gene. [provided by RefSeq, Aug 2011]

LETMD1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0663853).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030809.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CSRNP2	NM_030809.3	MANE Select	c.1324T>G	p.Ser442Ala	missense	Exon 5 of 5	NP_110436.1	Q9H175
LETMD1	NM_001351337.2		c.544-3208A>C		intron	N/A	NP_001338266.1
CSRNP2	NR_045072.2		n.1778T>G		non_coding_transcript_exon	Exon 5 of 5

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CSRNP2	ENST00000228515.6	TSL:1 MANE Select	c.1324T>G	p.Ser442Ala	missense	Exon 5 of 5	ENSP00000228515.1	Q9H175
CSRNP2	ENST00000863897.1		c.1324T>G	p.Ser442Ala	missense	Exon 6 of 6	ENSP00000533956.1
CSRNP2	ENST00000863898.1		c.1324T>G	p.Ser442Ala	missense	Exon 6 of 6	ENSP00000533957.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

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:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112010

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.054

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.61

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.019

Eigen

Benign

-0.59

Eigen_PC

Benign

-0.48

FATHMM_MKL

Benign

0.35

LIST_S2

Benign

0.36

M_CAP

Benign

0.0044

MetaRNN

Benign

0.066

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.55

PhyloP100

0.20

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.1

REVEL

Benign

0.026

Sift

Benign

0.061

Sift4G

Benign

0.65

Polyphen

0.0010

Vest4

0.060

MutPred

0.20

Loss of phosphorylation at S442 (P = 0.0375)

MVP

0.082

MPC

0.52

ClinPred

0.067

GERP RS

0.70

Varity_R

0.063

gMVP

0.14

Mutation Taster

=97/3

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over