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HIV Proteins and Their Cellular Binding Partners (R21/R33)

National Institutes of Health

open
Rolling / OpenLast verified: 2026-06-19

About This Grant

-The aim of this initiative is to promote collaborations between biochemists and structural biologists to define the interactions of HIV proteins with their host-cell partners towards determining the three dimensional structure of these complexes. The goal is to gain an in-depth understanding of HIV protein-containing complexes throughout the virus life cycle. A better understanding of these interactions will lead to new avenues for therapeutic interventions in HIV disease. -Mechanism of Support. Awards will support milestone-driven exploratory/feasibility proof of concept studies (2 year R21 phase), with possible rapid transition to expanded development (3 year R33 phase). -Funds Available. Funding will be based on scientific and technical merit, program priorities, and availability of funds. The R21 award will be limited to $275,000 direct costs over the two year award period, and the R33 award will be limited to $250,000 in direct costs per annum. NIH anticipates that a maximum of fifty percent (50%) of the funded R21 phase awards will progress to the R33 award. -Eligible organizations. For-profit and non-profit organizations, foreign and domestic public or private institutions such as universities, colleges, hospitals, laboratories, and faith-based or community-based organizations, Indian/Native American Tribal Governments (Federally Recognized); Indian/Native American Tribal Governments (Other than Federally Recognized); and Indian/Native American Tribally Designated Organizations. units of state and local government, and eligible agencies of the federal government, are eligible to apply for funding under this announcement. Individuals from underrepresented racial and ethnic groups as well as individuals with disabilities are encouraged to apply. -Eligible Project Directors/Principal Investigators (PDs/PIs): Any individuals from the applicant institutions who have the skills, knowledge, and resources necessary to carry out the proposed research. Individuals from underrepresented racial and ethnic groups as well as individuals with disabilities are always encouraged to apply for NIH support. -Application and Submission Information, and Specific Instructions for Preparing Combined R21/R33 Application. The R21/R33 Phased Innovation Award application must be submitted as a single application, and applicants should note specific instructions for each phase. -Applicants may submit more than one application, provided each application is scientifically distinct. -All investigator-initiated exploratory/developmental grant applications described in this announcement will be assigned to Institutes and Centers (ICs) according to standard Public Health Service (PHS) referral guidelines and specific program interests.

Grant Summary

HIV Proteins and Their Cellular Binding Partners (R21/R33) is a National Institutes of Health grant providing funding that varies by award for municipality. Applications are accepted on a rolling basis. Check eligibility and apply with FindGrants.

Focus Areas

healthhealthcare

Eligibility

municipality

How to Apply

Funding Range

Up to $0K

Deadline

Rolling / Open

Complexity
Medium
  1. 1Confirm your organization is eligible for HIV Proteins and Their Cellular Binding Partners (R21/R33) from National Institutes of Health, checking organization type, location, and any population or project requirements.
  2. 2Gather the required documents and information, including your organization details, project plan, and budget figures.
  3. 3Draft your application narrative and budget addressing the funder's priorities and review criteria. FindGrants can draft each section for you to review and edit.
  4. 4Review every section against the requirements checklist, then export a submission-ready application pack and submit it to National Institutes of Health before the deadline.
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HIV Proteins and Their Cellular Binding Partners (R21/R33): Frequently Asked Questions

Who is eligible for the HIV Proteins and Their Cellular Binding Partners (R21/R33)?

HIV Proteins and Their Cellular Binding Partners (R21/R33) is offered by National Institutes of Health and is generally open to municipality. It is open to organizations nationwide unless the funder specifies otherwise. Review the specific eligibility terms before applying, since funders set their own requirements around organization type, location, and the population or project being served.

How much funding does the HIV Proteins and Their Cellular Binding Partners (R21/R33) provide?

HIV Proteins and Their Cellular Binding Partners (R21/R33) provides an amount that varies by award per award from National Institutes of Health. Actual award sizes depend on the scope of your project, available program funds, and the number of applicants, so build a budget that reflects realistic, allowable costs rather than the maximum figure.

When is the HIV Proteins and Their Cellular Binding Partners (R21/R33) deadline?

HIV Proteins and Their Cellular Binding Partners (R21/R33) accepts applications on a rolling or ongoing basis, so there is no single fixed deadline. Confirm current timing with the funder, National Institutes of Health, before you apply, and submit as early as possible because rolling programs can close once funds are committed.

How do you apply for the HIV Proteins and Their Cellular Binding Partners (R21/R33)?

To apply for HIV Proteins and Their Cellular Binding Partners (R21/R33), confirm your eligibility, gather the required documents, and prepare a narrative and budget that address the funder's priorities. FindGrants guides you step by step and can draft each section, then exports a submission-ready application pack for this grant from National Institutes of Health.

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