Genetic Variant SRRT:p.Gln378His (chr7-100885015-G-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_015908.6(SRRT):c.1134G>C(p.Gln378His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 152,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Consequence

SRRT
NM_015908.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.50

Publications

0 publications found

Variant links:

Genes affected

SRRT (HGNC:24101): (serrate, RNA effector molecule) Enables mRNA cap binding complex binding activity and protein-macromolecule adaptor activity. Involved in primary miRNA processing. Located in nucleoplasm. Part of ribonucleoprotein complex. [provided by Alliance of Genome Resources, Apr 2022]

SRRT 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=0.033047438).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SRRT	NM_015908.6 link	c.1134G>C	p.Gln378His	missense_variant	Exon 9 of 20	ENST00000611405.5	NP_056992.4	Q9BXP5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SRRT	ENST00000611405.5 link	c.1134G>C	p.Gln378His	missense_variant	Exon 9 of 20	1	NM_015908.6	ENSP00000480421.1	Q9BXP5-1
SRRT	ENST00000614484.4 link	c.1134G>C	p.Gln378His	missense_variant	Exon 9 of 20	1		ENSP00000481173.1	Q9BXP5-3
SRRT	ENST00000448764.5 link	c.24G>C	p.Gln8His	missense_variant	Exon 1 of 12	5		ENSP00000410588.1	H7C3A1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152114

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152114

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74310

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41402

American (AMR)

AF:

0.00

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68014

Other (OTH)

AF:

0.00

AC:

AN:

2092

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

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 27, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1134G>C (p.Q378H) alteration is located in exon 9 (coding exon 8) of the SRRT gene. This alteration results from a G to C substitution at nucleotide position 1134, causing the glutamine (Q) at amino acid position 378 to be replaced by a histidine (H). 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

0.085

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.55

CADD

Benign

0.27

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.24

.;.;.;T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.19

LIST_S2

Benign

0.63

T;T;T;T;T

M_CAP

Benign

0.0030

MetaRNN

Benign

0.033

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.90

L;L;L;L;.

PhyloP100

-2.5

PrimateAI

Benign

0.43

PROVEAN

Benign

-0.69

.;.;.;.;N

REVEL

Benign

0.036

Sift

Benign

0.043

.;.;.;.;D

Sift4G

Benign

0.068

T;T;T;T;T

Polyphen

0.0

B;B;B;B;.

Vest4

0.19

MutPred

0.19

Loss of methylation at K383 (P = 0.1308);Loss of methylation at K383 (P = 0.1308);Loss of methylation at K383 (P = 0.1308);Loss of methylation at K383 (P = 0.1308);.;

MVP

0.10

ClinPred

0.054

GERP RS

-1.5

PromoterAI

-0.037

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.052

gMVP

0.16

Mutation Taster

=87/13

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

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over