SCOP 1.73: Domain d2nopa1: 2nop A:3-386

Lineage for d2nopa1 (2nop A:3-386)

1. Root: SCOP 1.73

2. Class f: Membrane and cell surface proteins and peptides [56835] (50 folds)

3. Fold f.44: Ammonium transporter [111351] (1 superfamily)
   11 transmembrane helices; duplication: consist of 2 structural repeats of five helices each plus extra C-terminal helix

4. Superfamily f.44.1: Ammonium transporter [111352] (1 family)

5. Family f.44.1.1: Ammonium transporter [111353] (1 protein)
   Pfam PF00909

6. Protein Ammonium transporter AmtB [111354] (1 species)

7. Species Escherichia coli [TaxId:562] [111355] (9 PDB entries)

8. Domain d2nopa1: 2nop A:3-386 [138413]
   automatically matched to d1xqea_
   complexed with act, gol, imd, so4

Details for d2nopa1

PDB Entry: 2nop, 2 Å

PDB Description: an unusual twin-his arrangement in the pore of ammonia channels is essential for substrate conductance

PDB Compounds: (A:) Ammonia channel

SCOP Domain Sequences for d2nopa1:

Sequence, based on SEQRES records:

>d2nopa1 f.44.1.1 (A:3-386) Ammonium transporter AmtB {Escherichia coli [TaxId: 562]}
avadkadnafmmictalvlfmtipgialfygglirgknvlsmltqvtvtfalvcilwvvy
gyslafgegnnffgninwlmlknieltavmgsiyqyihvafqgsfacitvglivgalaer
irfsavlifvvvwltlsyipiahmvwgggllashgaldfaggtvvhinaaiaglvgayli
gkrvgfgkeafkphnlpmvftgtailyigwfgfnagsagtaneiaalafvntvvataaai
lgwifgewalrgkpsllgacsgaiaglvgvtpacgyigvggaliigvvaglaglwgvtml
krllrvddpcdvfgvhgvcgivgcimtgifaasslggvgfaegvtmghqllvqlesiait
ivwsgvvafigykladltvglrvp

Sequence, based on observed residues (ATOM records):

>d2nopa1 f.44.1.1 (A:3-386) Ammonium transporter AmtB {Escherichia coli [TaxId: 562]}
avadkadnafmmictalvlfmtipgialfygglirgknvlsmltqvtvtfalvcilwvvy
gyslafgegnnffgninwlmlknieltavmgsiyqyihvafqgsfacitvglivgalaer
irfsavlifvvvwltlsyipiahmvwgggllashgaldfaggtvvhinaaiaglvgaylp
hnlpmvftgtailyigwfgfnagsagtaneiaalafvntvvataaailgwifgewalrgk
psllgacsgaiaglvgvtpacgyigvggaliigvvaglaglwgvtmpcdvfgvhgvcgiv
gcimtgifaasslggvgfaegvtmghqllvqlesiaitivwsgvvafigykladltvglr
vp

Timeline for d2nopa1:

• d2nopa1 is new in SCOP 1.73
  
• d2nopa1 appears in SCOP 1.75
  
• d2nopa1 appears in the current release, SCOPe 2.08, called d2nopa_