[BioC] how to get Entrez Gene ID from genomic coordinates

[Bruna Marini]

Hi,
I have a batch of genomic coordinates, and I need to find all the genes (Entrez Gene ID) covered by those coordinates.
I am new to R, but I am able to use biomaRt in R to get various annotation of genes from gene ID lists.
Would it be possible to retrieve my IDs from the coordinates?

The coordinates are in the chr:start:end format; I need the genes from both the strand.
es. 
1:11401198:11694590
1:14877629:15246452
1:38065507:38258622

Thank you for the attention,
best regards,

Bruna

Bruna Marini,
Molecular Medicine Lab
ICGEB
Padriciano 99, 34149 Trieste, Italy
marini at icgeb.org