Protein Family Models

This family represents the structurally related ATPase domains of histidine kinase, DNA gyrase B and HSP90. [1]. 18361456. Crystal structure of a novel non-Pfam protein AF1514 from. Archeoglobus fulgidus DSM 4304 solved by S-SAD using a Cr X-ray. source.. Li Y, Bahti P, Shaw N, Song G, Chen S, Zhang X, Zhang M, Cheng. C, Yin J, Zhu JY, Zhang H, Che D, Xu H, Abbas A, Wang BC, Liu. ZJ;. Proteins 2008;71:2109-13. (from Pfam)

Date:

2024-08-14

The histidine-containing phosphotransfer (HPt) domain is a novel protein module with an active histidine residue that mediates phosphotransfer reactions in the two-component signaling systems. A multistep phosphorelay involving the HPt domain has been suggested for these signaling pathways. The crystal structure of the HPt domain of the anaerobic sensor kinase ArcB has been determined [1]. The domain consists of six alpha helices containing a four-helix bundle-folding. The pattern of sequence similarity of the HPt domains of ArcB and components in other signaling systems can be interpreted in light of the three-dimensional structure and supports the conclusion that the HPt domains have a common structural motif both in prokaryotes and eukaryotes. In S. cerevisiae ypd1p this domain has been shown to contain a binding surface for Ssk1p (response regulator receiver domain containing protein Pfam:PF00072) [2]. [1]. 9054511. Insights into multistep phosphorelay from the crystal structure. of the C-terminal HPt domain of ArcB.. Kato M, Mizuno T, Shimizu T, Hakoshima T;. Cell 1997;88:717-723.. [2]. 12582120. Ssk1p response regulator binding surface on histidine-. containing phosphotransfer protein ypd1p.. Porter SW, Xu Q, West AH;. Eukaryot Cell 2003;2:27-33. (from Pfam)

Date:

2024-08-14

Dimerisation and phospho-acceptor domain of histidine kinases. [1]. 9989504. Structure of CheA, a signal-transducing histidine kinase.. Bilwes AM, Alex LA, Crane BR, Simon MI;. Cell 1999;96:131-141.. [2]. 18361456. Crystal structure of a novel non-Pfam protein AF1514 from. Archeoglobus fulgidus DSM 4304 solved by S-SAD using a Cr X-ray. source.. Li Y, Bahti P, Shaw N, Song G, Chen S, Zhang X, Zhang M, Cheng. C, Yin J, Zhu JY, Zhang H, Che D, Xu H, Abbas A, Wang BC, Liu. ZJ;. Proteins 2008;71:2109-13. (from Pfam)

Date:

2024-08-14

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. [1]. 7699720. Response regulators of bacterial signal transduction systems:. selective domain shuffling during evolution.. Pao GM, Saier MH;. J Mol Evol 1995;40:136-154. (from Pfam)

Date:

2024-08-14