NameChitotriosidase-1
Synonyms
  • 3.2.1.14
  • Chitinase-1
Gene NameCHIT1
OrganismHuman
Amino acid sequence
>lcl|BSEQ0002107|Chitotriosidase-1
MVRSVAWAGFMVLLMIPWGSAAKLVCYFTNWAQYRQGEARFLPKDLDPSLCTHLIYAFAG
MTNHQLSTTEWNDETLYQEFNGLKKMNPKLKTLLAIGGWNFGTQKFTDMVATANNRQTFV
NSAIRFLRKYSFDGLDLDWEYPGSQGSPAVDKERFTTLVQDLANAFQQEAQTSGKERLLL
SAAVPAGQTYVDAGYEVDKIAQNLDFVNLMAYDFHGSWEKVTGHNSPLYKRQEESGAAAS
LNVDAAVQQWLQKGTPASKLILGMPTYGRSFTLASSSDTRVGAPATGSGTPGPFTKEGGM
LAYYEVCSWKGATKQRIQDQKVPYIFRDNQWVGFDDVESFKTKVSYLKQKGLGGAMVWAL
DLDDFAGFSCNQGRYPLIQTLRQELSLPYLPSGTPELEVPKPGQPSEPEHGPSPGQDTFC
QGKADGLYPNPRERSSFYSCAAGRLFQQSCPTGLVFSNSCKCCTWN
Number of residues466
Molecular Weight51680.985
Theoretical pI6.96
GO Classification
Functions
  • chitin binding
  • chitinase activity
  • endochitinase activity
Processes
  • response to bacterium
  • chitin catabolic process
  • polysaccharide catabolic process
  • immune response
Components
  • extracellular space
  • lysosome
  • extracellular region
General FunctionEndochitinase activity
Specific FunctionDegrades chitin, chitotriose and chitobiose. May participate in the defense against nematodes and other pathogens. Isoform 3 has no enzymatic activity.
Pfam Domain Function
Transmembrane RegionsNot Available
GenBank Protein ID1050958
UniProtKB IDQ13231
UniProtKB Entry NameCHIT1_HUMAN
Cellular LocationSecreted
Gene sequence
>lcl|BSEQ0010742|Chitotriosidase-1 (CHIT1)
ATGGTGCGGTCTGTGGCCTGGGCAGGTTTCATGGTCCTGCTGATGATCCCATGGGGCTCT
GCTGCAAAACTGGTCTGCTACTTCACCAACTGGGCCCAGTACAGACAGGGGGAGGCTCGC
TTCCTGCCCAAGGACTTGGACCCCAGCCTTTGCACCCACCTCATCTACGCCTTCGCTGGC
ATGACCAACCACCAGCTGAGCACCACTGAGTGGAATGACGAGACTCTCTACCAGGAGTTC
AATGGCCTGAAGAAGATGTTCACAGATATGGTAGCCACGGCCAACAACCGTCAGACCTTT
GTCAACTCGGCCATCAGGTTTCTGCGCAAATACAGCTTTGACGGCCTTGACCTTGACTGG
GAGTACCCAGGAAGCCAGGGGAGCCCTGCCGTAGACAAGGAGCGCTTCACAACCCTGGTA
CAGGACTTGGCCAATGCCTTCCAGCAGGAAGCCCAGACCTCAGGGAAGGAACGCCTTCTT
CTGAGTGCAGCGGTTCCAGCTGGGCAGACCTATGTGGATGCTGGATACGAGGTGGACAAA
ATCGCCCAGAACCTGGATTTTGTCAACCTTATGGCCTACGACTTCCATGGCTCTTGGGAG
AAGGTCACGGGACATAACAGCCCCCTCTACAAGAGGCAAGAAGAGAGTGGTGCAGCAGCC
AGCCTCAACGTGGATGCTGCTGTGCAACAGTGGCTGCAGAAGGGGACCCCTGCCAGCAAG
CTGATCCTTGGCATGCCTACCTACGGACGCTCCTTCACACTGGCCTCCTCATCAGACACC
AGAGTGGGGGCCCCAGCCACAGGGTCTGGCACTCCAGGCCCCTTCACCAAGGAAGGAGGG
ATGCTGGCCTACTATGAAGTCTGCTCCTGGAAGGGGGCCACCAAACAGAGAATCCAGGAT
CAGAAGGTGCCCTACATCTTCCGGGACAACCAGTGGGTGGGCTTTGATGATGTGGAGAGC
TTCAAAACCAAGGTCAGCTATCTGAAGCAGAAGGGACTGGGCGGGGCCATGGTCTGGGCA
CTGGACTTAGATGACTTTGCCGGCTTCTCCTGCAACCAGGGCCGATACCCCCTCATCCAG
ACGCTACGGCAGGAACTGAGTCTTCCATACTTGCCTTCAGGCACCCCAGAGCTTGAAGTT
CCAAAACCAGGTCAGCCCTCTGAACCTGAGCATGGCCCCAGCCCTGGACAAGACACGTTC
TGCCAGGGCAAAGCTGATGGGCTCTATCCCAATCCTCGGGAACGGTCCAGCTTCTACAGC
TGTGCAGCGGGGCGGCTGTTCCAGCAAAGCTGCCCGACAGGCCTGGTGTTCAGCAACTCC
TGCAAATGCTGCACCTGGAATTGA
GenBank Gene IDU29615
GeneCard IDNot Available
GenAtlas IDCHIT1
HGNC IDHGNC:1936
Chromosome Location1
Locus1q31-q32
References
  1. Boot RG, Renkema GH, Strijland A, van Zonneveld AJ, Aerts JM: Cloning of a cDNA encoding chitotriosidase, a human chitinase produced by macrophages. J Biol Chem. 1995 Nov 3;270(44):26252-6. 7592832
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  5. Renkema GH, Boot RG, Muijsers AO, Donker-Koopman WE, Aerts JM: Purification and characterization of human chitotriosidase, a novel member of the chitinase family of proteins. J Biol Chem. 1995 Feb 3;270(5):2198-202. 7836450
  6. Boot RG, Renkema GH, Verhoek M, Strijland A, Bliek J, de Meulemeester TM, Mannens MM, Aerts JM: The human chitotriosidase gene. Nature of inherited enzyme deficiency. J Biol Chem. 1998 Oct 2;273(40):25680-5. 9748235
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  8. Rao FV, Houston DR, Boot RG, Aerts JM, Sakuda S, van Aalten DM: Crystal structures of allosamidin derivatives in complex with human macrophage chitinase. J Biol Chem. 2003 May 30;278(22):20110-6. Epub 2003 Mar 14. 12639956
  9. Rao FV, Houston DR, Boot RG, Aerts JM, Hodkinson M, Adams DJ, Shiomi K, Omura S, van Aalten DM: Specificity and affinity of natural product cyclopentapeptide inhibitors against A. fumigatus, human, and bacterial chitinases. Chem Biol. 2005 Jan;12(1):65-76. 15664516
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