Biology:Chitinase A N-terminal domain

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ChitinaseA_N
PDB 1edq EBI.jpg
crystal structure of chitinase a from s. marcescens at 1.55 angstroms
Identifiers
SymbolChitinaseA_N
PfamPF08329
Pfam clanCL0159
InterProIPR013540
SCOP21ctn / SCOPe / SUPFAM
CDDcd02848

In molecular biology, the chitinase A N-terminal domain is found at the N-terminus of a number of bacterial chitinases and similar viral proteins. It is organised into a fibronectin III module domain-like fold, comprising only beta strands. Its function is not known, but it may be involved in interaction with the enzyme substrate, chitin.[1][2] It is separated by a hinge region from the catalytic domain; this hinge region is probably mobile, allowing the N-terminal domain to have different relative positions in solution.[1]

References

  1. 1.0 1.1 "Crystal structure of a bacterial chitinase at 2.3 A resolution". Structure 2 (12): 1169–80. December 1994. doi:10.1016/s0969-2126(94)00119-7. PMID 7704527. 
  2. "Evolution of immunoglobulin-like modules in chitinases: their structural flexibility and functional implications". Fold Des 2 (5): 291–4. 1997. doi:10.1016/s1359-0278(97)00040-0. PMID 9377712. 
This article incorporates text from the public domain Pfam and InterPro: IPR013540