5-aminolevulinate synthase, erythroid-specific, mitochondrial

Name5-aminolevulinate synthase, erythroid-specific, mitochondrial
Synonyms
  • 2.3.1.37
  • 5-aminolevulinic acid synthase 2
  • ALAS-E
  • ALASE
  • ASB
  • Delta-ALA synthase 2
  • Delta-aminolevulinate synthase 2
Gene NameALAS2
OrganismHuman
Amino acid sequence
>lcl|BSEQ0001789|5-aminolevulinate synthase, erythroid-specific, mitochondrial
MVTAAMLLQCCPVLARGPTSLLGKVVKTHQFLFGIGRCPILATQGPNCSQIHLKATKAGG
DSPSWAKGHCPFMLSELQDGKSKIVQKAAPEVQEDVKAFKTDLPSSLVSVSLRKPFSGPQ
EQEQISGKVTHLIQNNMPGNYVFSYDQFFRDKIMEKKQDHTYRVFKTVNRWADAYPFAQH
FSEASVASKDVSVWCSNDYLGMSRHPQVLQATQETLQRHGAGAGGTRNISGTSKFHVELE
QELAELHQKDSALLFSSCFVANDSTLFTLAKILPGCEIYSDAGNHASMIQGIRNSGAAKF
VFRHNDPDHLKKLLEKSNPKIPKIVAFETVHSMDGAICPLEELCDVSHQYGALTFVDEVH
AVGLYGSRGAGIGERDGIMHKIDIISGTLGKAFGCVGGYIASTRDLVDMVRSYAAGFIFT
TSLPPMVLSGALESVRLLKGEEGQALRRAHQRNVKHMRQLLMDRGLPVIPCPSHIIPIRV
GNAALNSKLCDLLLSKHGIYVQAINYPTVPRGEELLRLAPSPHHSPQMMEDFVEKLLLAW
TAVGLPLQDVSVAACNFCRRPVHFELMSEWERSYFGNMGPQYVTTYA
Number of residues587
Molecular Weight64632.86
Theoretical pI8.19
GO Classification
Functions
  • coenzyme binding
  • pyridoxal phosphate binding
  • 5-aminolevulinate synthase activity
  • glycine binding
Processes
  • hemoglobin biosynthetic process
  • small molecule metabolic process
  • response to hypoxia
  • heme biosynthetic process
  • porphyrin-containing compound metabolic process
  • protoporphyrinogen IX biosynthetic process
  • cellular iron ion homeostasis
  • oxygen homeostasis
  • erythrocyte differentiation
Components
  • mitochondrion
  • mitochondrial inner membrane
  • mitochondrial matrix
General FunctionPyridoxal phosphate binding
Specific FunctionNot Available
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein ID28586
UniProtKB IDP22557
UniProtKB Entry NameHEM0_HUMAN
Cellular LocationMitochondrion matrix
Gene sequence
>lcl|BSEQ0016244|5-aminolevulinate synthase, erythroid-specific, mitochondrial (ALAS2)
ATGGTGACTGCAGCCATGCTGCTACAGTGCTGCCCAGTGCTTGCCCGGGGCCCCACAAGC
CTCCTAGGCAAGGTGGTTAAGACTCACCAGTTCCTGTTTGGTATTGGACGCTGTCCCATC
CTGGCTACCCAAGGACCAAACTGTTCTCAAATCCACCTTAAGGCAACAAAGGCTGGAGGA
GATTCTCCATCTTGGGCGAAGGGCCACTGTCCCTTCATGCTGTCGGAACTCCAGGATGGG
AAGAGCAAGATTGTGCAGAAGGCAGCCCCAGAAGTCCAGGAAGATGTGAAGGCTTTCAAG
ACAGATCTGCCTAGCTCCCTGGTCTCAGTCAGCCTAAGGAAGCCATTTTCCGGTCCCCAG
GAGCAGGAGCAGATCTCTGGGAAGGTCACACACCTGATTCAGAACAATATGCCTGGAAAC
TATGTCTTCAGTTATGACCAGTTTTTCAGGGACAAGATCATGGAGAAGAAACAGGATCAC
ACCTACCGTGTGTTCAAGACTGTGAACCGCTGGGCTGATGCATATCCCTTTGCCCAACAT
TTCTCTGAGGCATCTGTGGCCTCAAAGGATGTGTCCGTCTGGTGTAGTAATGATTACCTG
GGCATGAGCCGACACCCTCAGGTCTTGCAAGCCACACAGGAGACCCTGCAGCGTCATGGT
GCTGGAGCTGGTGGCACCCGCAACATCTCAGGCACCAGTAAGTTTCATGTGGAGCTTGAG
CAGGAGCTGGCTGAGCTGCACCAGAAGGACTCAGCCCTGCTCTTCTCCTCCTGCTTTGTT
GCCAATGACTCTACTCTCTTCACCTTGGCCAAGATCCTGCCAGGGTGCGAGATTTACTCA
GACGCAGGCAACCATGCTTCCATGATCCAAGGTATCCGTAACAGTGGAGCAGCCAAGTTT
GTCTTCAGGCACAATGACCCTGACCACCTAAAGAAACTTCTAGAGAAGTCTAACCCTAAG
ATACCCAAAATTGTGGCCTTTGAGACTGTCCACTCCATGGATGGTGCCATCTGTCCCCTC
GAGGAGTTGTGTGATGTGTCCCACCAGTATGGGGCCCTGACCTTCGTGGATGAGGTCCAT
GCTGTAGGACTGTATGGGTCCCGGGGCGCTGGGATTGGGGAGCGTGATGGAATTATGCAT
AAGATTGACATCATCTCTGGAACTCTTGGCAAGGCCTTTGGCTGTGTGGGCGGCTACATT
GCCAGCACCCGTGACTTGGTGGACATGGTGCGCTCCTATGCTGCAGGCTTCATCTTTACC
ACTTCTCTGCCCCCCATGGTGCTCTCTGGAGCTCTAGAATCTGTGCGGCTGCTCAAGGGA
GAGGAGGGCCAAGCCCTGAGGCGAGCCCACCAGCGCAATGTCAAGCACATGCGCCAGCTA
CTCATGGACAGGGGCCTTCCTGTCATCCCCTGCCCCAGCCACATCATCCCCATCCGGGTG
GGCAATGCAGCACTCAACAGCAAGCTCTGTGATCTCCTGCTCTCCAAGCATGGCATCTAT
GTGCAGGCCATCAACTACCCAACTGTCCCCCGGGGTGAAGAGCTCCTGCGCTTGGCACCC
TCCCCCCACCACAGCCCTCAGATGATGGAAGATTTTGTGGAGAAGCTGCTGCTGGCTTGG
ACTGCGGTGGGGCTGCCCCTCCAGGATGTGTCTGTGGCTGCCTGCAATTTCTGTCGCCGT
CCTGTACACTTTGAGCTCATGAGTGAGTGGGAACGTTCCTACTTCGGGAACATGGGGCCC
CAGTATGTCACCACCTATGCCTGA
GenBank Gene IDX56352
GeneCard IDNot Available
GenAtlas IDALAS2
HGNC IDHGNC:397
Chromosome LocationX
LocusXp11.21
References
  1. Bishop DF: Two different genes encode delta-aminolevulinate synthase in humans: nucleotide sequences of cDNAs for the housekeeping and erythroid genes. Nucleic Acids Res. 1990 Dec 11;18(23):7187-8. 2263504
  2. Cox TC, Bawden MJ, Martin A, May BK: Human erythroid 5-aminolevulinate synthase: promoter analysis and identification of an iron-responsive element in the mRNA. EMBO J. 1991 Jul;10(7):1891-902. 2050125
  3. Surinya KH, Cox TC, May BK: Identification and characterization of a conserved erythroid-specific enhancer located in intron 8 of the human 5-aminolevulinate synthase 2 gene. J Biol Chem. 1998 Jul 3;273(27):16798-809. 9642238
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  8. Cox TC, Bottomley SS, Wiley JS, Bawden MJ, Matthews CS, May BK: X-linked pyridoxine-responsive sideroblastic anemia due to a Thr388-to-Ser substitution in erythroid 5-aminolevulinate synthase. N Engl J Med. 1994 Mar 10;330(10):675-9. 8107717
  9. Cotter PD, Baumann M, Bishop DF: Enzymatic defect in "X-linked" sideroblastic anemia: molecular evidence for erythroid delta-aminolevulinate synthase deficiency. Proc Natl Acad Sci U S A. 1992 May 1;89(9):4028-32. 1570328
  10. Furuyama K, Uno R, Urabe A, Hayashi N, Fujita H, Kondo M, Sassa S, Yamamoto M: R411C mutation of the ALAS2 gene encodes a pyridoxine-responsive enzyme with low activity. Br J Haematol. 1998 Dec;103(3):839-41. 9858242
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  13. Cazzola M, May A, Bergamaschi G, Cerani P, Ferrillo S, Bishop DF: Absent phenotypic expression of X-linked sideroblastic anemia in one of 2 brothers with a novel ALAS2 mutation. Blood. 2002 Dec 1;100(12):4236-8. Epub 2002 Aug 8. 12393718
  14. Hurford MT, Marshall-Taylor C, Vicki SL, Zhou JZ, Silverman LM, Rezuke WN, Altman A, Tsongalis GJ: A novel mutation in exon 5 of the ALAS2 gene results in X-linked sideroblastic anemia. Clin Chim Acta. 2002 Jul;321(1-2):49-53. 12031592
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  17. Kucerova J, Horvathova M, Mojzikova R, Belohlavkova P, Cermak J, Divoky V: New mutation in erythroid-specific delta-aminolevulinate synthase as the cause of X-linked sideroblastic anemia responsive to pyridoxine. Acta Haematol. 2011;125(4):193-7. doi: 10.1159/000322870. Epub 2011 Jan 20. 21252495
  18. To-Figueras J, Ducamp S, Clayton J, Badenas C, Delaby C, Ged C, Lyoumi S, Gouya L, de Verneuil H, Beaumont C, Ferreira GC, Deybach JC, Herrero C, Puy H: ALAS2 acts as a modifier gene in patients with congenital erythropoietic porphyria. Blood. 2011 Aug 11;118(6):1443-51. doi: 10.1182/blood-2011-03-342873. Epub 2011 Jun 7. 21653323
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