Lactoperoxidase

NameLactoperoxidase
Synonyms
  • 1.11.1.7
  • LPO
  • Salivary peroxidase
  • SAPX
  • SPO
Gene NameLPO
OrganismHuman
Amino acid sequence
>lcl|BSEQ0008949|Lactoperoxidase
MRVLLHLPALLASLILLQAAASTTRAQTTRTSAISDTVSQAKVQVNKAFLDSRTRLKTAM
SSETPTSRQLSEYLKHAKGRTRTAIRNGQVWEESLKRLRQKASLTNVTDPSLDLTSLSLE
VGCGAPAPVVRCDPCSPYRTITGDCNNRRKPALGAANRALARWLPAEYEDGLSLPFGWTP
GKTRNGFPLPLAREVSNKIVGYLNEEGVLDQNRSLLFMQWGQIVDHDLDFAPDTELGSSE
YSKAQCDEYCIQGDNCFPIMFPPNDPKAGTQGKCMPFFRAGFVCPTPPYKSLAREQINAL
TSFLDASFVYSSEPSLASRLRNLSSPLGLMAVNQEVSDHGLPYLPYDSKKPSPCEFINTT
ARVPCFLAGDSRASEHILLATSHTLFLREHNRLARELKRLNPQWDGEKLYQEARKILGAF
VQIITFRDYLPILLGDHMQKWIPPYQGYSESVDPRISNVFTFAFRFGHLEVPSSMFRLDE
NYQPWGPEPELPLHTLFFNTWRMVKDGGIDPLVRGLLAKKSKLMKQNKMMTGELRNKLFQ
PTHRIHGFDLAAINTQRCRDHGQPGYNSWRAFCDLSQPQTLEELNTVLKSKMLAKKLLGL
YGTPDNIDIWIGAIAEPLVERGRVGPLLACLLGKQFQQIRDGDRFWWENPGVFTNEQKDS
LQKMSFSRLVCDNTRITKVPRDPFWANSYPYDFVDCSAIDKLDLSPWASVKN
Number of residues712
Molecular Weight80287.055
Theoretical pINot Available
GO Classification
Functions
  • thiocyanate peroxidase activity
  • heme binding
  • metal ion binding
Processes
  • hydrogen peroxide catabolic process
  • detection of chemical stimulus involved in sensory perception of bitter taste
  • thiocyanate metabolic process
  • response to oxidative stress
  • defense response to bacterium
Components
  • cytoplasm
  • extracellular space
  • extracellular exosome
  • basolateral plasma membrane
General FunctionThiocyanate peroxidase activity
Specific FunctionAntimicrobial agent which utilizes hydrogen peroxide and thiocyanate (SCN) to generate the antimicrobial substance hypothiocyanous acid (HOSCN) (By similarity). May contribute to airway host defense against infection.
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein IDNot Available
UniProtKB IDP22079
UniProtKB Entry NamePERL_HUMAN
Cellular LocationSecreted
Gene sequence
>lcl|BSEQ0017650|Lactoperoxidase (LPO)
ATGAGGGTCCTTCTCCATCTCCCAGCCCTCCTGGCTTCCCTCATCTTGCTTCAGGCTGCA
GCATCTACCACAAGAGATCCCAGCCTGGACTTGACTTCACTGTCTCTGGAGGTGGGCTGT
GGTGCTCCTGCTCCCGTGGTGAGATGCGACCCGTGCAGCCCTTACCGCACCATTACGGGA
GACTGCAATAACAGGAGGAAGCCTGCGCTGGGCGCCGCCAACAGGGCTCTGGCGCGCTGG
CTGCCCGCGGAGTACGAGGACGGGCTCTCCCTGCCCTTCGGCTGGACGCCGGGGAAGACG
CGCAACGGCTTCCCTCTCCCGCTGGCCCGGGAGGTATCTAACAAGATTGTTGGCTATCTG
AATGAGGAGGGTGTTCTGGACCAAAACAGGTCCCTGCTCTTCATGCAGTGGGGTCAGATT
GTGGATCATGACCTGGACTTTGCCCCTGACACCGAGCTGGGGAGTAGCGAGTACTCCAAA
GCCCAGTGTGATGAGTACTGTATCCAGGGAGACAACTGCTTCCCCATCATGTTCCCACCC
AATGACCCCAAGGCGGGGACTCAAGGGAAATGCATGCCTTTCTTCCGAGCTGGGTTCGTC
TGCCCCACTCCACCCTACAAGTCCCTGGCCCGAGAGCAGATCAACGCTCTGACCTCCTTC
CTGGATGCCAGCTTTGTGTACAGCTCCGAGCCAAGCCTGGCCAGCCGCCTCCGCAACCTC
AGCAGCCCCCTGGGCCTCATGGCTGTCAACCAGGAGGTCTCAGACCATGGACTACCCTAC
CTGCCCTATGACAGCAAGAAGCCAAGCCCCTGTGAGTTCATCAACACCACTGCCCGTGTG
CCCTGCTTCCTGGCAGGAGATTCTCGAGCCTCAGAGCATATTCTGCTGGCCACATCCCAC
ACCCTCTTTCTCCGCGAGCATAACCGGCTGGCCAGAGAACTAAAGAGACTCAACCCTCAG
TGGGATGGAGAGAAGCTCTACCAGGAAGCCCGGAAAATCCTGGGAGCCTTCGTGCAGATT
ATCACCTTTAGGGACTACCTACCCATTTTGCTAGGTGACCACATGCAGAAGTGGATACCC
CCATATCAAGGCTACAGTGAATCTGTGGATCCCAGAATTTCCAATGTCTTCACCTTCGCC
TTCCGCTTTGGCCACTTGGAGGTCCCCTCTAGTATGTTCCGCCTGGATGAGAATTATCAG
CCATGGGGGCCAGAACCAGAACTCCCCCTCCACACCCTCTTCTTCAACACTTGGAGGATG
GTCAAAGATGGTGGAATTGATCCTCTGGTGCGGGGCCTGCTGGCCAAGAAATCCAAGCTG
ATGAAACAGAATAAAATGATGACTGGAGAGCTGCGCAACAAGCTTTTCCAGCCAACTCAC
AGGATCCATGGCTTTGACCTGGCTGCCATCAACACACAGCGTTGCCGGGACCATGGGCAA
CCTGGGTACAATTCCTGGAGAGCCTTCTGTGACCTCTCACAGCCGCAGACACTAGAGGAG
TTGAACACAGTGCTGAAGAGCAAGATGCTGGCCAAGAAGTTACTGGGTCTCTACGGGACC
CCTGACAACATCGACATCTGGATAGGGGCCATTGCTGAGCCGCTGGTGGAAAGGGGTCGG
GTGGGGCCTCTCCTGGCCTGCCTCTTGGGCAAGCAGTTCCAGCAGATCCGTGATGGAGAC
AGGTTCTGGTGGGAAAACCCTGGGGTCTTCACGAACGAGCAGAAGGACTCTCTACAGAAA
ATGTCCTTCTCACGCCTTGTCTGTGACAACACCCGCATCACCAAGGTCCCACGGGACCCA
TTCTGGGCCAACAGCTACCCCTATGACTTCGTGGATTGCTCAGCCATCGACAAGCTGGAC
CTGTCACCCTGGGCCTCAGTGAAGAATTAG
GenBank Gene IDNot Available
GeneCard IDNot Available
GenAtlas IDNot Available
HGNC IDHGNC:6678
Chromosome Location17
LocusNot Available
References
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  5. Dull TJ, Uyeda C, Strosberg AD, Nedwin G, Seilhamer JJ: Molecular cloning of cDNAs encoding bovine and human lactoperoxidase. DNA Cell Biol. 1990 Sep;9(7):499-509. 2222811
  6. Wijkstrom-Frei C, El-Chemaly S, Ali-Rachedi R, Gerson C, Cobas MA, Forteza R, Salathe M, Conner GE: Lactoperoxidase and human airway host defense. Am J Respir Cell Mol Biol. 2003 Aug;29(2):206-12. Epub 2003 Mar 6. 12626341
  7. Ramachandran P, Boontheung P, Xie Y, Sondej M, Wong DT, Loo JA: Identification of N-linked glycoproteins in human saliva by glycoprotein capture and mass spectrometry. J Proteome Res. 2006 Jun;5(6):1493-503. 16740002
  8. Picariello G, Ferranti P, Mamone G, Roepstorff P, Addeo F: Identification of N-linked glycoproteins in human milk by hydrophilic interaction liquid chromatography and mass spectrometry. Proteomics. 2008 Sep;8(18):3833-47. doi: 10.1002/pmic.200701057. 18780401