PDB entry 2npg

View 2npg on RCSB PDB site
Description: An unusual twin-His arrangement in the pore of ammonia channels is essential for substrate conductance
Class: transport protein
Keywords: Membrane protein, Ammonia transport, Histidine mutant, AmtB, TRANSPORT PROTEIN
Deposited on 2006-10-27, released 2006-11-14
The last revision prior to the SCOPe 2.08 freeze date was dated 2017-10-18, with a file datestamp of 2017-10-13.
Experiment type: XRAY
Resolution: 2 Å
R-factor: N/A
AEROSPACI score: 0.31 (click here for full SPACI score report)

Chains and heterogens:

  • Chain 'A':
    Compound: Ammonia channel
    Species: Escherichia coli [TaxId:562]
    Gene: amtB
    Database cross-references and differences (RAF-indexed):
    • Uniprot P69681
      • engineered (317)
    Domains in SCOPe 2.08: d2npga_
  • Heterogens: SO4, ACT, GOL, HOH

PDB Chain Sequences:

  • Chain 'A':
    Sequence, based on SEQRES records: (download) 
    >2npgA (A:)
apavadkadnafmmictalvlfmtipgialfygglirgknvlsmltqvtvtfalvcilwv
vygyslafgegnnffgninwlmlknieltavmgsiyqyihvafqgsfacitvglivgala
erirfsavlifvvvwltlsyipiahmvwgggllashgaldfaggtvvhinaaiaglvgay
ligkrvgfgkeafkphnlpmvftgtailyigwfgfnagsagtaneiaalafvntvvataa
ailgwifgewalrgkpsllgacsgaiaglvgvtpacgyigvggaliigvvaglaglwgvt
mlkrllrvddpcdvfgvfgvcgivgcimtgifaasslggvgfaegvtmghqllvqlesia
itivwsgvvafigykladltvglrvpeeqeregldvnshgenaynadqaqqpaqadlehh
hhhh

    Sequence, based on observed residues (ATOM records): (download) 
    >2npgA (A:)
pavadkadnafmmictalvlfmtipgialfygglirgknvlsmltqvtvtfalvcilwvv
ygyslafgegnnffgninwlmlknieltavmgsiyqyihvafqgsfacitvglivgalae
rirfsavlifvvvwltlsyipiahmvwgggllashgaldfaggtvvhinaaiaglvgayl
phnlpmvftgtailyigwfgfnagsagtaneiaalafvntvvataaailgwifgewalrg
kpsllgacsgaiaglvgvtpacgyigvggaliigvvaglaglwgvtmlkdpcdvfgvfgv
cgivgcimtgifaasslggvgfaegvtmghqllvqlesiaitivwsgvvafigykladlt
vglrvp