SCOP 1.67: Domain d1n2cb_: 1n2c B:

Lineage for d1n2cb_ (1n2c B:)

1. Root: SCOP 1.67

2. Class c: Alpha and beta proteins (a/b) [51349] (130 folds)

3. Fold c.92: Chelatase-like [53799] (2 superfamilies)
   duplication: tandem repeat of two domains; 3 layers (a/b/a); parallel beta-sheet of 4 strands, order 2134

4. Superfamily c.92.2: "Helical backbone" metal receptor [53807] (3 families)
   contains a long alpha helical insertion in the interdomain linker

5. Family c.92.2.3: Nitrogenase iron-molybdenum protein [53816] (2 proteins)
   contains three domains of this fold; "Helical backbone" holds domains 2 and 3
   both chains are homologous; the inter-chain arrangement of domains 1 is similar to the intra-chain arrangement of domains 2 and 3

6. Protein Nitrogenase iron-molybdenum protein, beta chain [81401] (3 species)
   both chains are homologous; the inter-chain arrangement of domains 1 is similar to the intra-chain arrangement of domains 2 and 3

7. Species Azotobacter vinelandii [TaxId:354] [81397] (10 PDB entries)

8. Domain d1n2cb_: 1n2c B: [35618]
   Other proteins in same PDB: d1n2ca_, d1n2cc_, d1n2ce_, d1n2cf_, d1n2cg_, d1n2ch_

Details for d1n2cb_

PDB Entry: 1n2c, 3 Å

PDB Description: nitrogenase complex from azotobacter vinelandii stabilized by adp- tetrafluoroaluminate

SCOP Domain Sequences for d1n2cb_:

Sequence; same for both SEQRES and ATOM records:

>d1n2cb_ c.92.2.3 (B:) Nitrogenase iron-molybdenum protein, beta chain {Azotobacter vinelandii}
sqqvdkikasyplfldqdykdmlakkrdgfeekypqdkidevfqwtttkeyqelnfqrea
ltvnpakacqplgavlcalgfektmpyvhgsqgcvayfrsyfnrhfrepvscvsdsmted
aavfggqqnmkdglqnckatykpdmiavsttcmaevigddlnafinnskkegfipdefpv
pfahtpsfvgshvtgwdnmfegiaryftlksmddkvvgsnkkinivpgfetylgnfrvik
rmlsemgvgysllsdpeevldtpadgqfrmyaggttqeemkdapnalntvllqpwhlekt
kkfvegtwkhevpklnipmgldwtdeflmkvseisgqpipasltkergrlvdmmtdshtw
lhgkrfalwgdpdfvmglvkfllelgcepvhilchngnkrwkkavdailaaspygknatv
yigkdlwhlrslvftdkpdfmignsygkfiqrdtlhkgkefevplirigfpifdrhhlhr
sttlgyegamqilttlvnsilerldeetrgmqatdynhdlvr

Timeline for d1n2cb_:

• d1n2cb_ first appeared (with stable ids) in SCOP 1.55
  
• d1n2cb_ appears in SCOP 1.65
  
• d1n2cb_ appears in SCOP 1.69
  
• d1n2cb_ appears in the current release, SCOPe 2.08