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Article

Light-induced structural changes occur in the transmembrane helices of the Natronobacterium pharaonis HtrII transducer.

Biochemistry - 27 Nov 2001

Yang C S, Spudich J L

Abstract excerpt

The Natronobacterium pharaonis HtrII (NpHtrII) transducer interacts with its cognate photoactive sensory rhodopsin receptor, NpSRII, to mediate phototaxis responses. NpHtrII is predicted to have two transmembrane helices and a large cytoplasmic domain and to form a homodimer. Single cysteines were substituted into an engineered cysteine-less NpHtrII at 38 positions in its transmembrane domain. Oxidative disulfide...

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Identifiers

PMID: 11714274
DOI: 10.1021/bi010985c

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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Light-induced structural changes occur in the transmembrane helices of the Natronobacterium pharaonis HtrII transducer.PMID 11714274Read ↗

The cytoplasmic membrane-proximal domain of the HtrII transducer interacts with the E-F loop of photoactivated Natronomonas pharaonis sensory rhodopsin II.Semantic proximity Read ↗

Temperature-dependent interactions between photoactivated pharaonis phoborhodopsin and its transducer.Semantic proximity Read ↗

Structural analysis of a HAMP domain: the linker region of the phototransducer in complex with sensory rhodopsin II.Semantic proximity Read ↗

Association between a photo-intermediate of a M-lacking mutant D75N of pharaonis phoborhodopsin and its cognate transducer.Semantic proximity Read ↗

Protonatable residues at the cytoplasmic end of transmembrane helix-2 in the signal transducer HtrI control photochemistry and function of sensory rhodopsin I.Semantic proximity Read ↗

Signal relay from sensory rhodopsin I to the cognate transducer HtrI: assessing the critical change in hydrogen-bonding between Tyr-210 and Asn-53.Semantic proximity Read ↗

A microbial rhodopsin with a unique retinal composition shows both sensory rhodopsin II and bacteriorhodopsin-like properties.Semantic proximity Read ↗

Probing the proton channel and the retinal binding site of Natronobacterium pharaonis sensory rhodopsin II.Semantic proximity Read ↗

Sensory rhodopsin II from the haloalkaliphilic natronobacterium pharaonis: light-activated proton transfer reactions.Semantic proximity Read ↗

The signal transfer from the receptor NpSRII to the transducer NpHtrII is not hampered by the D75N mutation.Semantic proximity Read ↗

Tyr-199 and charged residues of pharaonis Phoborhodopsin are important for the interaction with its transducer.Semantic proximity Read ↗

Suppressor mutation analysis of the sensory rhodopsin I-transducer complex: insights into the color-sensing mechanism.Semantic proximity Read ↗

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