title: [Genetic characteristics on the small hydrophobic protein and hemagglutinin-neuraminidase genes of mumps virus in Yunnan province, China from 2007 to 2009].
abstract: OBJECTIVE
  To analyze genetic characterization of the small hydrophobic and hemagglutinin-neuraminidase genes of mumps virus (MuV) isolated in Yunnan province, China from 2007 to 2009.
  
  
  METHODS
  Fourteen MuV strains were isolated in Yunnan, China from 2007 to 2009. Using RT-PCR, the SH gene fragments contained 316 nucleotides in all strains and HN gene of six strains were sequenced. The sequences were aligned with other mumps virus sequences downloaded from GenBank using Mega 4.1 software.
  
  
  RESULTS
  Fourteen isolated strains were closely related to other reference strains of F genotypes. In SH gene, the homology of nucleotide and amino acid among the fourteen isolated strains were 98.3% - 100.0% and 96.5% - 100.0%, respectively, and 92.6% - 99.4% and 87.7% - 100.0% of homology when compared with that of strains isolated from other provinces in China, respectively. Wsh1 and Wsh2 strains had less homology when compared to other strains of F genotypes. The fourteen strains had homology of 84.5% - 85.1% and 77.2% compared to vaccine strains on nucleotide and amino acid, respectively, and had homology of 83.4% - 90.9% and 70.1% - 86.0% compared to that of other genotypes. In HN gene, the homology of nucleotide and amino acid among the six isolated strains were 99.3% - 99.5% and 99.1% - 99.7%, respectively, and also 99.8% and 99.8% of homology respectively when compared to the SP strain in China. All the six strains had homology of 92.4% - 93.2% and 95.5% - 96.4% when compared to the vaccine strains on nucleotide and amino acid, respectively, and had homology of 94.7% - 96.8% and 95.5% - 99.1% compared to other genotypes.
  
  
  CONCLUSIONS
  Fourteen strains isolated in Yunnan from 2007 to 2009 belonged to F genotype of MuV while the HN gene seemed more conservative than SH gene.
authors.affiliation: Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China. shaohuima70@hotmail.com
authors.forename: Shao-Hui
authors.initials: SH
authors.lastname: Ma
authors.forename: Hai-Jing
authors.initials: HJ
authors.lastname: Shi
authors.forename: Chun-Yan
authors.initials: CY
authors.lastname: He
authors.forename: Jun-Ying
authors.initials: JY
authors.lastname: Chen
authors.forename: Hui-Juan
authors.initials: HJ
authors.lastname: Yang
authors.forename: Qian-Ming
authors.initials: QM
authors.lastname: Sun
mesh_terms: D001483:Base Sequence; D002681:China / Q000453:epidemiology; D005838:Genotype; D015707:HN Protein / Q000235:genetics*; D006801:Humans; D009107:Mumps / Q000453:epidemiology / Q000821:virology; D009109:Mumps virus / Q000235:genetics* / Q000302:isolation & purification; D012367:RNA, Viral / Q000235:genetics; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D012689:Sequence Homology, Nucleic Acid; D014764:Viral Proteins / Q000235:genetics*
chemical_list: D015707:HN Protein; D012367:RNA, Viral; D014764:Viral Proteins; C067386:small hydrophobic protein, Mumps virus