16-31357350-C-T

Variant summary

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

The NM_000887.5(ITGAX):​c.416C>T​(p.Pro139Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000874 in 1,602,336 control chromosomes in the GnomAD database, including 1 homozygotes. 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P139Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000092 ( 1 hom. )

Consequence

ITGAX
NM_000887.5 missense

Scores

4
3
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.953
Variant links:
Genes affected
ITGAX (HGNC:6152): (integrin subunit alpha X) This gene encodes the integrin alpha X chain protein. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. This protein combines with the beta 2 chain (ITGB2) to form a leukocyte-specific integrin referred to as inactivated-C3b (iC3b) receptor 4 (CR4). The alpha X beta 2 complex seems to overlap the properties of the alpha M beta 2 integrin in the adherence of neutrophils and monocytes to stimulated endothelium cells, and in the phagocytosis of complement coated particles. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2013]

Genome browser will be placed here

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=0.06149137).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ITGAXNM_000887.5 linkuse as main transcriptc.416C>T p.Pro139Leu missense_variant 5/30 ENST00000268296.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ITGAXENST00000268296.9 linkuse as main transcriptc.416C>T p.Pro139Leu missense_variant 5/301 NM_000887.5 P4
ITGAXENST00000562522.2 linkuse as main transcriptc.416C>T p.Pro139Leu missense_variant 5/311 A2
ITGAXENST00000567409.1 linkuse as main transcriptn.634C>T non_coding_transcript_exon_variant 4/41
ITGAXENST00000562918.5 linkuse as main transcriptc.335C>T p.Pro112Leu missense_variant 5/52

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152204
Hom.:
0
Cov.:
32
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:
0.00104
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000163
AC:
37
AN:
226430
Hom.:
0
AF XY:
0.000260
AC XY:
32
AN XY:
123312
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00125
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000991
Gnomad OTH exome
AF:
0.000179
GnomAD4 exome
AF:
0.0000924
AC:
134
AN:
1450132
Hom.:
1
Cov.:
31
AF XY:
0.000137
AC XY:
99
AN XY:
720434
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:
0.00144
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000632
Gnomad4 OTH exome
AF:
0.0000834
GnomAD4 genome
AF:
0.0000394
AC:
6
AN:
152204
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74364
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:
0.00104
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000189
ExAC
AF:
0.000174
AC:
21

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 submitterclinical testingAmbry GeneticsJan 29, 2024The c.416C>T (p.P139L) alteration is located in exon 5 (coding exon 5) of the ITGAX gene. This alteration results from a C to T substitution at nucleotide position 416, causing the proline (P) at amino acid position 139 to be replaced by a leucine (L). 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
0.14
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.20
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.60
D;T;.
Eigen
Benign
0.17
Eigen_PC
Benign
-0.049
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.58
T;T;T
M_CAP
Benign
0.077
D
MetaRNN
Benign
0.061
T;T;T
MetaSVM
Uncertain
-0.16
T
MutationAssessor
Pathogenic
3.4
M;.;.
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.38
T
PROVEAN
Pathogenic
-8.8
D;.;D
REVEL
Benign
0.23
Sift
Pathogenic
0.0
D;.;D
Sift4G
Pathogenic
0.0
D;D;D
Polyphen
1.0
D;.;.
Vest4
0.43
MutPred
0.44
Loss of disorder (P = 0.029);.;Loss of disorder (P = 0.029);
MVP
0.79
MPC
0.77
ClinPred
0.45
T
GERP RS
4.7
Varity_R
0.61
gMVP
0.80

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.

Other links and lift over

dbSNP: rs770533015; hg19: chr16-31368671; API