Reference

Protein - http://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?db=protein&val=67464609

http://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?db=protein&val=21396487

Human protein - http://www.rcsb.org/pdb/explore/explore.do?structureId=1ZKD

Homologene - http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?itool=protein_brief&db=protein&cmd=Display&dopt=protein_homologene&from_uid=21396487

Pubmed - http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?itool=protein_brief&db=protein&cmd=Display&dopt=protein_pubmed_refseq&from_uid=21396487

Paper dealing with S-Adenosylmethionine Methyltransferases

http://www.springerlink.com/content/x4730h073672q375/fulltext.pdf