[EMBOSS] Retrieve data from entrez

[Wolfgang Gruber]

Hello,

i am not sure if I did it the right way. I wanted to access the entrez
database, because in general I get my sequences from there. I putted
this entry into my emboss.default:

DB entrez [
         type: N
         format: genbank
         method: entrez
         fields: "id acc gi sv des org key"
         url:    "http://www.ncbi.nlm.nih.gov/sites/gquery"
]

Then i tried to retrieve the data with the entrez id. In most cases
this works, in some not. For example seqret entrez:NM_000527 works,
but seqret entrez:NP_000518 does not: "Error: Unable to read sequence
'entrez:NP_000518'"

Can you help me what I did wrong?

Ones more what I want: I want to give the entrez id and retrieve then
the corresponding sequence.

Thanks,
Wolfgang