chrX-75053377-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP6_ModerateBS2

The NM_001271696.3(ABCB7):​c.2252C>T​(p.Ser751Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000141 in 1,209,845 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 0 hem., cov: 24)
Exomes 𝑓: 0.000015 ( 0 hom. 8 hem. )

Consequence

ABCB7
NM_001271696.3 missense

Scores

7
7
3

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 9.41
Variant links:
Genes affected
ABCB7 (HGNC:48): (ATP binding cassette subfamily B member 7) The membrane-associated protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the MDR/TAP subfamily. Members of the MDR/TAP subfamily are involved in multidrug resistance as well as antigen presentation. This gene encodes a half-transporter involved in the transport of heme from the mitochondria to the cytosol. With iron/sulfur cluster precursors as its substrates, this protein may play a role in metal homeostasis. Mutations in this gene have been associated with mitochondrial iron accumulation and isodicentric (X)(q13) and sideroblastic anemia. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP6
Variant X-75053377-G-A is Benign according to our data. Variant chrX-75053377-G-A is described in ClinVar as [Benign]. Clinvar id is 3610721.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAdExome4 at 8 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ABCB7NM_001271696.3 linkc.2252C>T p.Ser751Leu missense_variant 16/16 ENST00000373394.8 NP_001258625.1 O75027-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ABCB7ENST00000373394.8 linkc.2252C>T p.Ser751Leu missense_variant 16/161 NM_001271696.3 ENSP00000362492.3 O75027-1

Frequencies

GnomAD3 genomes
AF:
0.00000891
AC:
1
AN:
112213
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
34375
show subpopulations
Gnomad AFR
AF:
0.0000324
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
GnomAD3 exomes
AF:
0.0000436
AC:
8
AN:
183300
Hom.:
0
AF XY:
0.0000738
AC XY:
5
AN XY:
67796
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000365
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000210
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000367
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000146
AC:
16
AN:
1097632
Hom.:
0
Cov.:
30
AF XY:
0.0000220
AC XY:
8
AN XY:
363120
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000284
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000739
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000131
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000891
AC:
1
AN:
112213
Hom.:
0
Cov.:
24
AF XY:
0.00
AC XY:
0
AN XY:
34375
show subpopulations
Gnomad4 AFR
AF:
0.0000324
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000149
AC:
1
ExAC
AF:
0.0000824
AC:
10

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.47
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.35
.;.;.;T;T
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
.;D;D;D;D
M_CAP
Pathogenic
0.90
D
MetaRNN
Uncertain
0.47
T;T;T;T;T
MetaSVM
Uncertain
0.57
D
MutationAssessor
Uncertain
2.1
.;.;.;M;.
PrimateAI
Uncertain
0.69
T
PROVEAN
Benign
-0.91
.;N;N;N;.
REVEL
Uncertain
0.58
Sift
Pathogenic
0.0
.;D;D;D;.
Sift4G
Pathogenic
0.0
.;D;D;D;D
Polyphen
1.0
D;D;.;D;.
Vest4
0.19, 0.23, 0.22, 0.23
MVP
0.94
MPC
2.2
ClinPred
0.33
T
GERP RS
5.5
Varity_R
0.71
gMVP
0.90

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: rs372891558; hg19: chrX-74273212; COSMIC: COSV53717978; COSMIC: COSV53717978; API