Hi,

my R code previously accessed Biomart via:

library("biomaRt")
mart=useMart(biomart="ENSEMBL_MART_ENSEMBL", dataset="mmusculus_gene_ensembl", host="www.ensembl.org")
resMArt=getBM(attributes=c("ensembl_gene_id","description","mgi_symbol"),mart=mart)
resMArt2=getBM(attributes=c("ensembl_gene_id","gene_biotype"),mart=mart)

however,

mart=useMart(biomart="ENSEMBL_MART_ENSEMBL", dataset="mmusculus_gene_ensembl", host="www.ensembl.org")

now gives the error:

Error in listMarts(host = host, path = path, port = port, includeHosts = TRUE,  : 
  Unexpected format to the list of available marts.
Please check the following URL manually, and try ?listMarts for advice.
http://www.ensembl.org:80/biomart/martservice?type=registry&requestid=biomaRt

When I try to access the URL manaully I get:

Error: 500

There was a technical error.

Something has gone wrong with our web server when attempting to make this page.

Unfortunately, the service you are trying to access is currently unavailable.
Please try again later.

Anyone knows the reason for this?

Thank you