chr16-31278075-T-A

Variant summary

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

The NM_000632.4(ITGAM):​c.1322T>A​(p.Met441Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000311 in 1,608,028 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. 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. M441T) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ITGAM
NM_000632.4 missense

Scores

19

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.55
Variant links:
Genes affected
ITGAM (HGNC:6149): (integrin subunit alpha M) This gene encodes the integrin alpha M chain. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. This I-domain containing alpha integrin combines with the beta 2 chain (ITGB2) to form a leukocyte-specific integrin referred to as macrophage receptor 1 ('Mac-1'), or inactivated-C3b (iC3b) receptor 3 ('CR3'). The alpha M beta 2 integrin is important in the adherence of neutrophils and monocytes to stimulated endothelium, and also in the phagocytosis of complement coated particles. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

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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=0.08807936).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ITGAMNM_000632.4 linkuse as main transcriptc.1322T>A p.Met441Lys missense_variant 12/30 ENST00000544665.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ITGAMENST00000544665.9 linkuse as main transcriptc.1322T>A p.Met441Lys missense_variant 12/301 NM_000632.4 P4P11215-1
ITGAMENST00000567031.1 linkuse as main transcriptc.312+1026T>A intron_variant 1
ITGAMENST00000648685.1 linkuse as main transcriptc.1322T>A p.Met441Lys missense_variant 12/30 A1P11215-2

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152026
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000419
AC:
1
AN:
238718
Hom.:
0
AF XY:
0.00000773
AC XY:
1
AN XY:
129346
show subpopulations
Gnomad AFR exome
AF:
0.0000699
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1456002
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
723634
show subpopulations
Gnomad4 AFR exome
AF:
0.0000599
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152026
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74228
show subpopulations
Gnomad4 AFR
AF:
0.0000483
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:
0.0000147
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.00000827
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.057
BayesDel_addAF
Benign
-0.46
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
0.73
DANN
Benign
0.51
DEOGEN2
Benign
0.016
.;.;T
Eigen
Benign
-1.5
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.034
N
LIST_S2
Benign
0.45
.;T;T
M_CAP
Benign
0.0039
T
MetaRNN
Benign
0.088
T;T;T
MetaSVM
Benign
-0.92
T
MutationAssessor
Benign
-0.69
N;N;N
MutationTaster
Benign
1.0
P;P
PrimateAI
Benign
0.33
T
PROVEAN
Benign
0.34
.;N;N
REVEL
Benign
0.0040
Sift
Benign
0.86
.;T;T
Sift4G
Benign
0.85
.;T;T
Polyphen
0.0
.;.;B
Vest4
0.18, 0.16
MutPred
0.38
Gain of disorder (P = 0.0188);Gain of disorder (P = 0.0188);Gain of disorder (P = 0.0188);
MVP
0.20
MPC
0.45
ClinPred
0.012
T
GERP RS
-0.078
Varity_R
0.13
gMVP
0.36

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: rs1143680; hg19: chr16-31289396; API