UCSF Pharmacogenetics of Membrane Transporters
Gene View
Common Name:ABC7
HGNC Symbol:ABCB7
HGNC Description:ATP-binding cassette, sub-family B (MDR/TAP), member 7
HGNC ID:48
Chromosome:Chr.X(-): 74189830-74292857
Location:Xq12-q13
OMIM:300135
OMIM Phenotype:Anemia, sideroblastic, and spinocerebellar ataxia
Accessions:AF038950.1, AB005289.1
Nucleotide RefSeq:NM_004299
Protein RefSeq:NP_004290
Entrez:22
Isoforms:1
Evidence:Substrate In Vitro Evidence: 1. Transient expression of ANC7 n mouse embryo liver BNL-CL2 cells resulted in an increase in the level and activity of ferrochelatase (the last enzyme in the pathway to synthesize heme) and thioredoxin (a cytosolic protein containing Fe/S). ABC7 expression therefore contributes to the production of heme during the differentiation of erythroid cells. Taketani, S et al. Blood 2003 Apr 15, 101(8):3274-80 PMID 12480705. Substrate In Vivo Evidence: 1. A SNP (I400M) in ABC7 was linked with X-linked sideroblastic anemia and ataxia (XLSA/A), a recessive disorder characterized by onset of non-progressive cerebellar ataxia and mild anemia. Allikmets, R et al. Hum Mol Genet. 8(5):743-9 PMID 10196363. 2. ABC7 plays a central role in the maturation of cytosolic iron-sulfur cluster-containing proteins. Bekri, S et al. Blood 2000 Nov 1, 96(9):3256-64 PMID 11050011. Tissue Distribution Evidence: 1. Targeting signal indicates that the ABC7 gene product is likely to be located in the mitochondrial inner membrane. Shimada, Y et al. J Hum Genet 1998, 43(2):115-22 PMID 9621516.
Tissues:mitochondrial inner membrane
Type:protein coding
Sets:II
PharmGKB ID:PA24389
HPRD ID:02137
Substrates:iron?
Trivial Names:ABC7, ASAT, Atm1p, EST140535
Transcripts:NM_004299 [Chr.X(-): 74189830-74292857]
ABCB7 Resequencing
[Your browser is not displaying the SVG image of experimental data in gene context.]
Study Name:ABCB7 Resequencing
Experiments:
SNP impact: P - Public  D - Discovered  E - Exclusive  (dbSNP build 130)
SNP array availability: I - found on Illumina Human1M-Duo BeadChip  A - found on Affymetrix Genome-Wide SNP Array 6.0  
FeaturePMT SNP IDdbSNP/ PubMedSNP Array AvailabilityGenomic PositionTranscript PositionCoding PositionNucleotide ChangeStrand, '+' or '-'Amino Acid PositionAmino Acid ChangeStatisticsAA FreqCA FreqAS FreqME FreqSample Set
 
4222
PDE
IA74293145-288-313
CAATTTTACATAAACAACGAATCAT T → C TCTTCGTGCGTGTGTCCCAAATATT
+ 
 
n=
T/T=
T/C=
C/C=
C=
132
42
15
9
0.250
134
67
0
0
0.000
132
66
0
0
0.000
132
65
1
0
0.008
PMT-272
Promoter
4221
PDE
 74293006-149-174
AGCCTCTTTTATTTGTTTTTCCTTA G → A GGCCGAGCTTTGATTGTTTTCCTTA
+ 
 
n=
G/G=
G/A=
A/A=
A=
132
65
0
1
0.015
134
67
0
0
0.000
132
66
0
0
0.000
132
66
0
0
0.000
PMT-272
Promoter
4220
PDE
 74292921-64-89
TACCTTAATTGTCTCTCCTCTTCTT G → C TTTTCCCAGGGCCCCAGACCGGAAA
+ 
 
n=
G/G=
G/C=
C/C=
C=
132
54
10
2
0.106
134
67
0
0
0.000
132
66
0
0
0.000
132
65
0
1
0.015
PMT-272

Transmembrane prediction:

Non-synonymous amino acid changes shown in red, indels (insertions and deletions) in blue, and synonymous changes in green. Exon(s) indicated by black outlines.