Hmdb loader
Identification
HMDB Protein ID HMDBP14318
Secondary Accession Numbers None
Name Outer capsid protein sigma-1
Synonyms
  1. Sigma1
  2. Cell attachment protein
  3. Hemagglutinin
Gene Name S1
Protein Type Unknown
Biological Properties
General Function Not Available
Specific Function Fiber-like molecule that attaches the virion to the host cell membrane by binding to the primary receptor F11R/JAM-A and to sialic acid containing proteins (coreceptor). The interaction of sigma-1 with F11R is required for NF-kB activation and apoptosis. Binding to both sialic acid and F11R is required to induce maximal levels of apoptosis (By similarity).
Pathways Not Available
Reactions Not Available
GO Classification
Biological Process
viral entry into host cell
virion attachment to host cell
cell adhesion
Cellular Component
viral outer capsid
viral capsid
Cellular Location Not Available
Gene Properties
Chromosome Location Not Available
Locus Not Available
SNPs Not Available
Gene Sequence Not Available
Protein Properties
Number of Residues Not Available
Molecular Weight 51403.275
Theoretical pI Not Available
Pfam Domain Function
Signals Not Available
Transmembrane Regions Not Available
Protein Sequence Not Available
GenBank ID Protein Not Available
UniProtKB/Swiss-Prot ID P04506
UniProtKB/Swiss-Prot Entry Name SIGM1_REOVL
PDB IDs
GenBank Gene ID Not Available
GeneCard ID Not Available
GenAtlas ID Not Available
HGNC ID Not Available
References
General References
  1. Cashdollar LW, Chmelo RA, Wiener JR, Joklik WK: Sequences of the S1 genes of the three serotypes of reovirus. Proc Natl Acad Sci U S A. 1985 Jan;82(1):24-8. doi: 10.1073/pnas.82.1.24. [PubMed:3855545 ]
  2. Duncan R, Horne D, Cashdollar LW, Joklik WK, Lee PW: Identification of conserved domains in the cell attachment proteins of the three serotypes of reovirus. Virology. 1990 Feb;174(2):399-409. doi: 10.1016/0042-6822(90)90093-7. [PubMed:2305549 ]
  3. Nibert ML, Dermody TS, Fields BN: Structure of the reovirus cell-attachment protein: a model for the domain organization of sigma 1. J Virol. 1990 Jun;64(6):2976-89. doi: 10.1128/JVI.64.6.2976-2989.1990. [PubMed:2335823 ]
  4. Kobayashi T, Antar AA, Boehme KW, Danthi P, Eby EA, Guglielmi KM, Holm GH, Johnson EM, Maginnis MS, Naik S, Skelton WB, Wetzel JD, Wilson GJ, Chappell JD, Dermody TS: A plasmid-based reverse genetics system for animal double-stranded RNA viruses. Cell Host Microbe. 2007 Apr 19;1(2):147-57. doi: 10.1016/j.chom.2007.03.003. [PubMed:18005692 ]
  5. Munemitsu SM, Atwater JA, Samuel CE: Biosynthesis of reovirus-specified polypeptides. Molecular cDNA cloning and nucleotide sequence of the reovirus serotype 1 Lang strain bicistronic s1 mRNA which encodes the minor capsid polypeptide sigma 1a and the nonstructural polypeptide sigma 1bNS. Biochem Biophys Res Commun. 1986 Oct 30;140(2):508-14. doi: 10.1016/0006-291x(86)90761-8. [PubMed:2430568 ]
  6. Li JK, Keene JD, Scheible PP, Joklik WK: Nature of the 3'-terminal sequences of the plus and minus strands of the S1 gene of reovirus serotypes 1, 2 and 3. Virology. 1980 Aug;105(1):41-51. doi: 10.1016/0042-6822(80)90154-3. [PubMed:6158163 ]