Crystal Structure of a Conserved Hypothetical Protein MJ0927 from Methanocaldococcus jannaschii Reveals a Novel Quaternary Assembly in the Nif3 Family

Table 2

Interacting surfaces in MJ0927 and interactions at the interdimer interface.

Type of contacts	Monomer A	Monomer D
	Residue	Residue
Salt bridges	Asp36	Lys87
	Asp96	Lys90
	Lys87	Asp36
	Lys90	Asp96
Hydrogen bonds	Arg79[O]	Asn29[ND2]
	Phe81[O]	Gly35[N]
	Ile78[O]	Ile78[N]
	Lys75[O]	Arg79[NH1]
	Gly27[O]	Arg79[NH1]
	Gly27[O]	Arg79[NH2]
	Leu32[O]	Asn80[ND2]
	Asn29[OD1]	Asn80[ND2]
	Gln33[O]	Phe81[N]
	Gly35[O]	Thr82[OG1]
	Asp96[OD1]	Tyr86[OH]
	Asp36[OD1]	Lys87[NZ]
	Asn29[ND2]	Arg79[O]
	Gly35[N]	Phe81[O]
	Ile78[N]	Ile78[O]
	Arg79[NH1]	Lys75[O]
	Arg79[NH1]	Gly27[O]
	Arg79[NH2]	Gly27[O]
	Asn80[ND2]	Asn29[OD1]
	Phe81[N]	Gln33[O]
	Tyr86[OH]	Asp96[OD1]