Variant chr9-5466808-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_014143.4(CD274):c.829A>G(p.Thr277Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,998 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

CD274
NM_014143.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.456

Variant links:

Genes affected

CD274 (HGNC:17635): (CD274 molecule) This gene encodes an immune inhibitory receptor ligand that is expressed by hematopoietic and non-hematopoietic cells, such as T cells and B cells and various types of tumor cells. The encoded protein is a type I transmembrane protein that has immunoglobulin V-like and C-like domains. Interaction of this ligand with its receptor inhibits T-cell activation and cytokine production. During infection or inflammation of normal tissue, this interaction is important for preventing autoimmunity by maintaining homeostasis of the immune response. In tumor microenvironments, this interaction provides an immune escape for tumor cells through cytotoxic T-cell inactivation. Expression of this gene in tumor cells is considered to be prognostic in many types of human malignancies, including colon cancer and renal cell carcinoma. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2015]

CD274 links:

(HGNC:):

links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0576995).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CD274	NM_014143.4 linkuse as main transcript	c.829A>G	p.Thr277Ala	missense_variant	6/7	ENST00000381577.4
LOC124902114	XR_007061406.1 linkuse as main transcript	n.256-7621T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CD274	ENST00000381577.4 linkuse as main transcript	c.829A>G	p.Thr277Ala	missense_variant	6/7	1	NM_014143.4	P1	Q9NZQ7-1
CD274	ENST00000498261.1 linkuse as main transcript	n.656A>G		non_coding_transcript_exon_variant	6/7	1
	ENST00000661858.1 linkuse as main transcript	n.277-7621T>C		intron_variant, non_coding_transcript_variant
CD274	ENST00000381573.8 linkuse as main transcript	c.487A>G	p.Thr163Ala	missense_variant	5/6	5			Q9NZQ7-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.85e-7

AC:

AN:

1459998

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726470

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

EpiCase

AF:

0.0000548

EpiControl

AF:

0.00

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

Aug 16, 2022

The c.829A>G (p.T277A) alteration is located in exon 6 (coding exon 5) of the CD274 gene. This alteration results from a A to G substitution at nucleotide position 829, causing the threonine (T) at amino acid position 277 to be replaced by an alanine (A). 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

0.073

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.74

CADD

Benign

7.5

DANN

Benign

0.43

DEOGEN2

Benign

0.18

.;T

Eigen

Benign

-1.0

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.095

LIST_S2

Benign

0.45

T;T

M_CAP

Benign

0.0049

MetaRNN

Benign

0.058

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

.;L

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

-1.4

N;N

REVEL

Benign

0.025

Sift

Benign

0.26

T;T

Sift4G

Benign

0.76

T;T

Polyphen

0.13

.;B

Vest4

0.11

MutPred

0.17

.;Loss of phosphorylation at T277 (P = 0.0363);

MVP

0.14

MPC

0.48

ClinPred

0.065

GERP RS

1.8

Varity_R

0.045

gMVP

0.22

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

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