from Bio import Entrez
from itertools import islice

Entrez.email = "bintriz@gmail.com"

q_result   = Entrez.read(Entrez.elink(db="gene", dbfrom="cdd", id="276006"))
ig_geneids = [ link["Id"] for link in q_result[0]["LinkSetDb"][0]["Link"] ]

def build_geneid_query(geneids, size):
    it = iter(geneids)
    q  = ','.join(list(islice(it, size)))
    while q:
        yield q
        q = ','.join(list(islice(it,size)))

ig_genes = []
for q in build_geneid_query(ig_geneids, 100):
    q_result  = Entrez.read(Entrez.esummary(db="gene", id=q))
    ig_genes += q_result["DocumentSummarySet"]["DocumentSummary"]

ig_genes_human = [ gene for gene in ig_genes if gene["Organism"]["CommonName"] == "human" ]

for gene in reversed(ig_genes_human):
    geneid = gene.attributes["uid"]
    name   = gene["Name"]
    desc   = gene["Description"]
    print("%s\t%s\t%s" % (geneid, name, desc))