SCOPe 2.01: Domain d1fp4b_: 1fp4 B:

Lineage for d1fp4b_ (1fp4 B:)

1. Root: SCOPe 2.01

2. Class c: Alpha and beta proteins (a/b) [51349] (147 folds)

3. Fold c.92: Chelatase-like [53799] (3 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] (5 families)
   contains a long alpha helical insertion in the interdomain linker

5. Family c.92.2.3: Nitrogenase iron-molybdenum protein [53816] (3 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] (15 PDB entries)

8. Domain d1fp4b_: 1fp4 B: [76188]
   Other proteins in same PDB: d1fp4a_, d1fp4c_
   complexed with ca, cfm, clp, hca; mutant

Details for d1fp4b_

PDB Entry: 1fp4, 2.5 Å

PDB Description: crystal structure of the alpha-h195q mutant of nitrogenase

PDB Compounds: (B:) nitrogenase molybdenum-iron protein beta chain

SCOPe Domain Sequences for d1fp4b_:

Sequence; same for both SEQRES and ATOM records:

>d1fp4b_ c.92.2.3 (B:) Nitrogenase iron-molybdenum protein, beta chain {Azotobacter vinelandii [TaxId: 354]}
sqqvdkikasyplfldqdykdmlakkrdgfeekypqdkidevfqwtttkeyqelnfqrea
ltvnpakacqplgavlcalgfektmpyvhgsqgcvayfrsyfnrhfrepvscvsdsmted
aavfggqqnmkdglqnckatykpdmiavsttcmaevigddlnafinnskkegfipdefpv
pfahtpsfvgshvtgwdnmfegiaryftlksmddkvvgsnkkinivpgfetylgnfrvik
rmlsemgvgysllsdpeevldtpadgqfrmyaggttqeemkdapnalntvllqpwhlekt
kkfvegtwkhevpklnipmgldwtdeflmkvseisgqpipasltkergrlvdmmtdshtw
lhgkrfalwgdpdfvmglvkfllelgcepvhilchngnkrwkkavdailaaspygknatv
yigkdlwhlrslvftdkpdfmignsygkfiqrdtlhkgkefevplirigfpifdrhhlhr
sttlgyegamqilttlvnsilerldeetrgmqatdynhdlvr

Timeline for d1fp4b_:

• d1fp4b_ first appeared in SCOP 1.63
  
• d1fp4b_ appears in SCOP 1.75
  
• d1fp4b_ appears in SCOPe 2.02
  
• d1fp4b_ appears in the current release, SCOPe 2.08