Macromolecule Annotations for the Entities in PDB 1F51

Domain Annotation: SCOP Classification SCOP Database (version: 1.75) Homepage

Chains Domain Info Class Fold Superfamily Family Domain Species
E d1f51e_ Alpha and beta proteins (a/b) Flavodoxin-like CheY-like CheY-related Sporulation response regulator Spo0F Bacillus subtilis [TaxId: 1423]
F d1f51f_ Alpha and beta proteins (a/b) Flavodoxin-like CheY-like CheY-related Sporulation response regulator Spo0F Bacillus subtilis [TaxId: 1423]
G d1f51g_ Alpha and beta proteins (a/b) Flavodoxin-like CheY-like CheY-related Sporulation response regulator Spo0F Bacillus subtilis [TaxId: 1423]
H d1f51h_ Alpha and beta proteins (a/b) Flavodoxin-like CheY-like CheY-related Sporulation response regulator Spo0F Bacillus subtilis [TaxId: 1423]
A d1f51a_ Alpha and beta proteins (a+b) Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Bacillus subtilis [TaxId: 1423]
B d1f51b_ Alpha and beta proteins (a+b) Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Bacillus subtilis [TaxId: 1423]
C d1f51c_ Alpha and beta proteins (a+b) Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Bacillus subtilis [TaxId: 1423]
D d1f51d_ Alpha and beta proteins (a+b) Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Sporulation response regulatory protein Spo0B Bacillus subtilis [TaxId: 1423]

Protein Family Annotation Pfam Database Homepage

Chains Pfam Accession Pfam Identifier Pfam Description Type Source
A PF14682 SPOB_ab Sporulation initiation phospho-transferase B, C-terminal Domain Sporulation initiation phospho-transferase B or SpoOB is part of a phospho-relay that initiates sporulation in Bacillus subtilis. Spo0B is a two-domain protein consisting of an N-terminal alpha-helical hairpin domain and a C-terminal alpha/beta domain, represented by this family. Two subunits of Spo0B dimerise by a parallel association of helical hairpins to form a novel four-helix bundle from which the active histidine - involved in the auto-phosphorylation - protrudes. In the phospho-relay, the signal-receptor histidine kinases are dephosphorylated by a common response regulator, Spo0F. Spo0B then takes phosphorylated Spo0F as substrate hereby mediating the transfer of a phosphoryl group to Spo0A, the ultimate transcription factor. PFAM PF14682
E PF00072 Response_reg Response regulator receiver domain Domain This domain receives the signal from the sensor partner in bacterial two-component systems. It is usually found N-terminal to a DNA binding effector domain. PFAM PF00072
A PF14689 SPOB_a Sensor_kinase_SpoOB-type, alpha-helical domain Domain Sporulation initiation phospho-transferase B or SpoOB is part of a phospho-relay that initiates sporulation in Bacillus subtilis. Spo0B is a two-domain protein consisting of an N-terminal alpha-helical hairpin domain and a C-terminal alpha/beta domain. Two subunits of Spo0B dimerise by a parallel association of helical hairpins to form a novel four-helix bundle from which the active histidine - involved in the auto-phosphorylation - protrudes. In the phospho-relay, the signal-receptor histidine kinases are dephosphorylated by a common response regulator, Spo0F. Spo0B then takes phosphorylated Spo0F as substrate thereby mediating the transfer of a phosphoryl group to Spo0A, the ultimate transcription factor. The exact function of this alpha-helical domain is not known; it does not always occur just as the N-terminal domain of SPOB_ab, Pfam:PF14682. SCOP describes this domain as a histidine kinase-like fold lacking the kinase ATP-binding site. PFAM PF14689

Protein Modification Annotation

Type PDB Residue Nr. Description