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Information on EC 7.3.2.1 - ABC-type phosphate transporter

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EC Tree
IUBMB Comments
An ATP-binding cassette (ABC) type transporter, characterized by the presence of two similar ATP-binding domains/proteins and two integral membrane domains/proteins. A bacterial enzyme that interacts with an extracytoplasmic substrate binding protein and mediates the high affinity uptake of phosphate anions. Unlike P-type ATPases, it does not undergo phosphorylation during the transport process.
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This record set is specific for:
UNIPROT: Q61609
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Word Map
The expected taxonomic range for this enzyme is: Bacteria, Archaea, Eukaryota
Reaction Schemes
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phosphate-[phosphate-binding protein][side 1]
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[phosphate-binding protein][side 1]
Synonyms
pit-1, phosphate transporter, npt2a, pho84, anion transporter 1, pit-2, pi transporter, slc20a1, glvr-1, pstscab, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
inorganic phosphate transporter
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type III Pi transporter
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ABC phosphate transporter
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ATP phosphohydrolase (phosphate-importing)
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phosphate specific transporter
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phosphate-specific transport system
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phosphate-transporting ATPase
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Pst
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REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
hydrolysis of phosphoric acid anhydride
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PATHWAY SOURCE
PATHWAYS
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SYSTEMATIC NAME
IUBMB Comments
ATP phosphohydrolase (ABC-type, phosphate-importing)
An ATP-binding cassette (ABC) type transporter, characterized by the presence of two similar ATP-binding domains/proteins and two integral membrane domains/proteins. A bacterial enzyme that interacts with an extracytoplasmic substrate binding protein and mediates the high affinity uptake of phosphate anions. Unlike P-type ATPases, it does not undergo phosphorylation during the transport process.
CAS REGISTRY NUMBER
COMMENTARY hide
9000-83-3
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ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
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UniProt
Manually annotated by BRENDA team
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
endogenous PiT1 mRNA level is decreased in dense MC3T3-E1 cell cultures
Manually annotated by BRENDA team
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
malfunction
PiT1 knock-out mice do not survive past E12.5 and from E10.5, the embryos are growth-retarded and show reduced proliferation of liver cells. Isolated mouse embryonic fibroblasts MC3T3-E1 with knocked out as well as reduced PiT1 expression levels also exhibit impaired proliferation
physiological function
a certain level of PiT1 is important for proliferation, role of PiT1 in regulation of cell proliferation, overview
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
S20A1_MOUSE
681
0
74153
Swiss-Prot
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PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Byskov, K.; Jensen, N.; Kongsfelt, I.; Wielsoe, M.; Pedersen, L.; Haldrup, C.; Pedersen, L.
Regulation of cell proliferation and cell density by the inorganic phosphate transporter PiT1
Cell Div.
7
7
2012
Mus musculus (Q61609), Mus musculus, Homo sapiens (Q8WUM9), Homo sapiens
Manually annotated by BRENDA team