ATP-binding cassette sub-family G member 2

NameATP-binding cassette sub-family G member 2
Synonyms
  • ABCP
  • BCRP
  • BCRP1
  • Breast cancer resistance protein
  • CDw338
  • Mitoxantrone resistance-associated protein
  • MXR
  • Placenta-specific ATP-binding cassette transporter
  • Urate exporter
Gene NameABCG2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0002125|ATP-binding cassette sub-family G member 2
MSSSNVEVFIPVSQGNTNGFPATASNDLKAFTEGAVLSFHNICYRVKLKSGFLPCRKPVE
KEILSNINGIMKPGLNAILGPTGGGKSSLLDVLAARKDPSGLSGDVLINGAPRPANFKCN
SGYVVQDDVVMGTLTVRENLQFSAALRLATTMTNHEKNERINRVIQELGLDKVADSKVGT
QFIRGVSGGERKRTSIGMELITDPSILFLDEPTTGLDSSTANAVLLLLKRMSKQGRTIIF
SIHQPRYSIFKLFDSLTLLASGRLMFHGPAQEALGYFESAGYHCEAYNNPADFFLDIING
DSTAVALNREEDFKATEIIEPSKQDKPLIEKLAEIYVNSSFYKETKAELHQLSGGEKKKK
ITVFKEISYTTSFCHQLRWVSKRSFKNLLGNPQASIAQIIVTVVLGLVIGAIYFGLKNDS
TGIQNRAGVLFFLTTNQCFSSVSAVELFVVEKKLFIHEYISGYYRVSSYFLGKLLSDLLP
MRMLPSIIFTCIVYFMLGLKPKADAFFVMMFTLMMVAYSASSMALAIAAGQSVVSVATLL
MTICFVFMMIFSGLLVNLTTIASWLSWLQYFSIPRYGFTALQHNEFLGQNFCPGLNATGN
NPCNYATCTGEEYLVKQGIDLSPWGLWKNHVALACMIVIFLTIAYLKLLFLKKYS
Number of residues655
Molecular Weight72313.47
Theoretical pI8.9
GO Classification
Functions
  • protein homodimerization activity
  • transporter activity
  • xenobiotic-transporting ATPase activity
  • ATP binding
  • heme transporter activity
  • ATPase activity, coupled to transmembrane movement of substances
Processes
  • transmembrane transport
  • drug transmembrane transport
  • cellular iron ion homeostasis
  • urate metabolic process
  • xenobiotic transport
  • transport
  • heme transport
  • response to drug
  • small molecule metabolic process
Components
  • nucleus
  • plasma membrane
  • mitochondrial membrane
  • integral component of membrane
General FunctionXenobiotic-transporting atpase activity
Specific FunctionHigh-capacity urate exporter functioning in both renal and extrarenal urate excretion. Plays a role in porphyrin homeostasis as it is able to mediates the export of protoporhyrin IX (PPIX) both from mitochondria to cytosol and from cytosol to extracellular space, and cellular export of hemin, and heme. Xenobiotic transporter that may play an important role in the exclusion of xenobiotics from the brain. Appears to play a major role in the multidrug resistance phenotype of several cancer cell lines. Implicated in the efflux of numerous drugs and xenobiotics: mitoxantrone, the photosensitizer pheophorbide, camptothecin, methotrexate, azidothymidine (AZT), and the anthracyclines daunorubicin and doxorubicin.
Pfam Domain Function
Transmembrane Regions396-416 429-449 478-498 507-527 536-556 631-651
GenBank Protein ID4185796
UniProtKB IDQ9UNQ0
UniProtKB Entry NameABCG2_HUMAN
Cellular LocationCell membrane
Gene sequence
>lcl|BSEQ0016303|ATP-binding cassette sub-family G member 2 (ABCG2)
ATGTCTTCCAGTAATGTCGAAGTTTTTATCCCAGTGTCACAAGGAAACACCAATGGCTTC
CCCGCGACAGCTTCCAATGACCTGAAGGCATTTACTGAAGGAGCTGTGTTAAGTTTTCAT
AACATCTGCTATCGAGTAAAACTGAAGAGTGGCTTTCTACCTTGTCGAAAACCAGTTGAG
AAAGAAATATTATCGAATATCAATGGGATCATGAAACCTGGTCTCAACGCCATCCTGGGA
CCCACAGGTGGAGGCAAATCTTCGTTATTAGATGTCTTAGCTGCAAGGAAAGATCCAAGT
GGATTATCTGGAGATGTTCTGATAAATGGAGCACCGCGACCTGCCAATTTCAAATGTAAT
TCAGGTTACGTGGTACAAGATGATGTTGTGATGGGCACTCTGACGGTGAGAGAAAACTTA
CAGTTCTCAGCAGCTCTTCGGCTTGCAACAACTATGACGAATCATGAAAAAAACGAACGG
ATTAACAGGGTCATTCAAGAGTTAGGTCTGGATAAAGTGGCAGACTCCAAGGTTGGAACT
CAGTTTATCCGTGGTGTGTCTGGAGGAGAAAGAAAAAGGACTAGTATAGGAATGGAGCTT
ATCACTGATCCTTCCATCTTGTTCTTGGATGAGCCTACAACTGGCTTAGACTCAAGCACA
GCAAATGCTGTCCTTTTGCTCCTGAAAAGGATGTCTAAGCAGGGACGAACAATCATCTTC
TCCATTCATCAGCCTCGATATTCCATCTTCAAGTTGTTTGATAGCCTCACCTTATTGGCC
TCAGGAAGACTTATGTTCCACGGGCCTGCTCAGGAGGCCTTGGGATACTTTGAATCAGCT
GGTTATCACTGTGAGGCCTATAATAACCCTGCAGACTTCTTCTTGGACATCATTAATGGA
GATTCCACTGCTGTGGCATTAAACAGAGAAGAAGACTTTAAAGCCACAGAGATCATAGAG
CCTTCCAAGCAGGATAAGCCACTCATAGAAAAATTAGCGGAGATTTATGTCAACTCCTCC
TTCTACAAAGAGACAAAAGCTGAATTACATCAACTTTCCGGGGGTGAGAAGAAGAAGAAG
ATCACAGTCTTCAAGGAGATCAGCTACACCACCTCCTTCTGTCATCAACTCAGATGGGTT
TCCAAGCGTTCATTCAAAAACTTGCTGGGTAATCCCCAGGCCTCTATAGCTCAGATCATT
GTCACAGTCGTACTGGGACTGGTTATAGGTGCCATTTACTTTGGGCTAAAAAATGATTCT
ACTGGAATCCAGAACAGAGCTGGGGTTCTCTTCTTCCTGACGACCAACCAGTGTTTCAGC
AGTGTTTCAGCCGTGGAACTCTTTGTGGTAGAGAAGAAGCTCTTCATACATGAATACATC
AGCGGATACTACAGAGTGTCATCTTATTTCCTTGGAAAACTGTTATCTGATTTATTACCC
ATGAGGATGTTACCAAGTATTATATTTACCTGTATAGTGTACTTCATGTTAGGATTGAAG
CCAAAGGCAGATGCCTTCTTCGTTATGATGTTTACCCTTATGATGGTGGCTTATTCAGCC
AGTTCCATGGCACTGGCCATAGCAGCAGGTCAGAGTGTGGTTTCTGTAGCAACACTTCTC
ATGACCATCTGTTTTGTGTTTATGATGGTCTGTTGGTCAATCTCACAACCATTGCATCTT
GGCTGTCATGGCTTCAGTACTTCAGCATTCCACGATATGGATTTACGGCTTTGCAGCATA
ATGAATTTTTGGGACAAAACTTCTGCCCAGGACTCAATGCAACAGGAAACAATCCTTGTA
ACTATGCAACATGTACTGGCGAAGAATATTTGGTAA
GenBank Gene IDAF103796
GeneCard IDNot Available
GenAtlas IDABCG2
HGNC IDHGNC:74
Chromosome Location4
Locus4q22
References
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