chr12-95878308-A-C

Position:

chr12-95878308-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_182496.3(CCDC38):c.1181T>G(p.Met394Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000353 in 1,613,314 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

CCDC38
NM_182496.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.82

Variant links:

Genes affected

CCDC38 (HGNC:26843): (coiled-coil domain containing 38) Located in centrosome. [provided by Alliance of Genome Resources, Apr 2022]

CCDC38 links:

SNRPF (HGNC:11162): (small nuclear ribonucleoprotein polypeptide F) Enables RNA binding activity. Involved in spliceosomal snRNP assembly. Located in cytosol and nucleus. Part of several cellular components, including methylosome; nucleus; and pICln-Sm protein complex. Biomarker of nasopharynx carcinoma. [provided by Alliance of Genome Resources, Apr 2022]

SNRPF links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.23573098).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CCDC38	NM_182496.3 linkuse as main transcript	c.1181T>G	p.Met394Arg	missense_variant	13/16	ENST00000344280.8	NP_872302.2	Q502W7
CCDC38	XM_011537883.3 linkuse as main transcript	c.1181T>G	p.Met394Arg	missense_variant	13/16		XP_011536185.1	Q502W7
CCDC38	XM_047428281.1 linkuse as main transcript	c.689T>G	p.Met230Arg	missense_variant	9/12		XP_047284237.1
CCDC38	XM_011537888.4 linkuse as main transcript	c.530T>G	p.Met177Arg	missense_variant	7/10		XP_011536190.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
CCDC38	ENST00000344280.8 linkuse as main transcript	c.1181T>G	p.Met394Arg	missense_variant	13/16	1	NM_182496.3	ENSP00000345470.3	Q502W7
SNRPF	ENST00000552085.1 linkuse as main transcript	c.130-1380A>C		intron_variant		3		ENSP00000447127.1	F8W0W6
SNRPF	ENST00000553192.5 linkuse as main transcript	c.130-1380A>C		intron_variant		4		ENSP00000447751.1	A0A0B4J254
CCDC38	ENST00000549876.5 linkuse as main transcript	n.65T>G		non_coding_transcript_exon_variant	2/5	5		ENSP00000447129.1	H0YHI1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152152

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000440

AC:

AN:

250216

Hom.:

AF XY:

0.0000518

AC XY:

AN XY:

135250

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000885

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000370

AC:

AN:

1461162

Hom.:

Cov.:

AF XY:

0.0000316

AC XY:

AN XY:

726908

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000468

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152152

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 18, 2024

The c.1181T>G (p.M394R) alteration is located in exon 13 (coding exon 12) of the CCDC38 gene. This alteration results from a T to G substitution at nucleotide position 1181, causing the methionine (M) at amino acid position 394 to be replaced by an arginine (R). 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

0.16

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.42

CADD

Benign

DANN

Benign

0.95

DEOGEN2

Benign

0.051

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.15

FATHMM_MKL

Benign

0.36

LIST_S2

Benign

0.65

M_CAP

Benign

0.018

MetaRNN

Benign

0.24

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.3

PrimateAI

Benign

0.48

PROVEAN

Uncertain

-3.2

REVEL

Benign

0.14

Sift

Uncertain

0.025

Sift4G

Benign

0.28

Polyphen

0.64

Vest4

0.39

MutPred

0.18

Gain of ubiquitination at K396 (P = 0.0554);

MVP

0.38

MPC

0.21

ClinPred

0.20

GERP RS

5.8

Varity_R

0.59

gMVP

0.39

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over