Genetic Variant GEMIN5:p.Gly1494Arg (chr5-154888257-C-G) – 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_015465.5(GEMIN5):c.4480G>C(p.Gly1494Arg) 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 1,461,880 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. G1494S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GEMIN5
NM_015465.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.284

Publications

0 publications found

Variant links:

Genes affected

GEMIN5 (HGNC:20043): (gem nuclear organelle associated protein 5) This gene encodes a WD repeat protein that is a component of the survival of motor neurons (SMN) complex. The SMN complex plays a critical role in mRNA splicing through the assembly of spliceosomal small nuclear ribonucleoproteins (snRNPs), and may also mediate the assembly and transport of other classes of ribonucleoproteins. The encoded protein is the snRNA-binding component of the SMN complex. Dysregulation of this gene may play a role in alternative mRNA splicing and tumor cell motility. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011]

GEMIN5 Gene-Disease associations (from GenCC):

neurodevelopmental disorder with cerebellar atrophy and motor dysfunction
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), ClinGen

GEMIN5 links:

ENSG00000309402 (HGNC:):

ENSG00000309402 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=0.062671214).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015465.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GEMIN5	NM_015465.5	MANE Select	c.4480G>C	p.Gly1494Arg	missense	Exon 28 of 28	NP_056280.2	Q8TEQ6
	GEMIN5	NM_001252156.2		c.4477G>C	p.Gly1493Arg	missense	Exon 28 of 28	NP_001239085.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GEMIN5	ENST00000285873.8	TSL:1 MANE Select	c.4480G>C	p.Gly1494Arg	missense	Exon 28 of 28	ENSP00000285873.6	Q8TEQ6
	ENSG00000309402	ENST00000840784.1		n.181-13C>G		intron	N/A

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461880

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727240

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:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112004

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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

Uncertain

0.38

BayesDel_addAF

Benign

-0.036

BayesDel_noAF

Benign

-0.29

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.025

Eigen

Benign

-0.41

Eigen_PC

Benign

-0.36

FATHMM_MKL

Benign

0.48

LIST_S2

Benign

0.74

M_CAP

Benign

0.046

MetaRNN

Benign

0.063

MetaSVM

Benign

-0.70

MutationAssessor

Benign

1.5

PhyloP100

0.28

PrimateAI

Benign

0.33

PROVEAN

Benign

-2.0

REVEL

Benign

0.13

Sift

Benign

0.067

Sift4G

Benign

0.11

Polyphen

0.066

Vest4

0.19

MutPred

0.35

Gain of MoRF binding (P = 0.0143)

MVP

0.79

MPC

0.11

ClinPred

0.39

GERP RS

2.4

Varity_R

0.040

gMVP

0.41

Mutation Taster

=78/22

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