Toolkit/SOS-CIS(D) method

SOS-CIS(D) method

Computational Method·Research·Since 2010

Also known as: scaled opposite spin configuration interaction with single substitutions SOS-CIS(D)

Taxonomy: Technique Branch / Method. Workflows sit above the mechanism and technique branches rather than replacing them.

Summary

SOS-CIS(D) is a quantum-chemical excited-state calculation method used to compute vertical excitation energies. In the cited 2010 BLUF photoreceptor study, it was applied to model flavin-associated structural and spectral changes and to evaluate light-induced states.

Usefulness & Problems

Why this is useful

This method is useful for estimating excitation energies relevant to photoreceptor chromophores and for connecting computed spectral shifts to experimentally observed light responses. In the cited study, the resulting molecular structures and spectral shifts were reported to be in excellent agreement with experiment.

Source:

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems

Problem solved

SOS-CIS(D) helps address the problem of assigning and rationalizing light-induced structural and spectral changes in BLUF photoreceptor proteins at the electronic-structure level. Specifically, it was used to test mechanistic models involving the flavin chromophore environment and a conserved Gln residue.

Taxonomy & Function

Primary hierarchy

Technique Branch

Method: A concrete computational method used to design, rank, or analyze an engineered system.

Target processes

No target processes tagged yet.

Input: Light

Implementation Constraints

The extraction evidence states that vertical excitation energies were calculated with the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method. The available evidence does not specify software, basis sets, solvation treatment, QM/MM setup, or other practical computational parameters.

The supplied evidence only documents use of SOS-CIS(D) for vertical excitation energy calculations in a BLUF photoreceptor context. No evidence is provided here on computational cost, generalizability across systems, benchmarking against alternative methods, or independent replication.

Validation

Cell-freeBacteriaMammalianMouseHumanTherapeuticIndep. Replication

Supporting Sources

Ranked Claims

Claim 1agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 2agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 3agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 4agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 5agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 6agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 7agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 8agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 9agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 10agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 11agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 12agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 13agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 14agreement with experimentsupports2010Source 1needs review

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results
absorption red shift 12-16 nmC4=O flavin vibrational downshift 25 cm(-1)
Claim 15mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 16mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 17mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 18mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 19mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 20mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 21mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 22mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 23mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 24mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 25mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 26mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 27mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 28mechanistic supportsupports2010Source 1needs review

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations
Claim 29method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 30method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 31method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 32method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 33method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 34method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 35method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 36method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 37method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 38method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 39method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 40method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 41method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems
Claim 42method capabilitysupports2010Source 1needs review

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems

Approval Evidence

1 source3 linked approval claimsfirst-pass slug sos-cis-d-method
Calculations of the vertical excitation energies were performed with the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method

Source:

agreement with experimentsupports

The computed molecular structures and spectral shifts are in excellent agreement with experimental results.

The computed molecular structures as well as the spectral shifts (the red shift by 12–16 nm in absorption and the downshift by 25 cm(-1) for the C4═O flavin vibrational mode) are in excellent agreement with the experimental results

Source:

mechanistic supportsupports

Quantum chemical calculations support a mechanism of light-induced changes in BLUF photoreceptor proteins involving rotation/tautomerization transformations of a conserved Gln residue near the flavin chromophore.

To verify the specific mechanism of light-induced changes involving the rotation/tautomerization transformations with the conserved Gln residue near the flavin chromophore, we performed accurate quantum chemical calculations

Source:

method capabilitysupports

The SOS-CIS(D) method enables efficient treatment of excited states in large molecular systems.

the scaled opposite spin configuration interaction with single substitutions SOS-CIS(D) method that enables efficient treatment of excited states in large molecular systems

Source:

Comparisons

Source-backed strengths

The cited study reports excellent agreement between computed molecular structures and spectral shifts and experimental results. The calculations also provided mechanistic support for a light-induced transformation involving rotation/tautomerization of a conserved Gln residue near the flavin chromophore.

Ranked Citations

  1. 1.
    StructuralSource 1Journal of Chemical Theory and Computation2010Claim 1Claim 2Claim 3

    Extracted from this source document.