Closed · PA-06-388 · CFDA 93.855;93.856 · Discretionary

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

Federal grant opportunity posted by National Institutes of Health, cataloged on Grants.gov.

Varies
Award range
Closed
Status
-
Close date
-
Expected awards

The verdict

HIV Proteins and Their Cellular Binding Partners (R21/R33) is a closed discretionary listing from National Institutes of Health that offered Varies by applicant. Future funding cycles may be published under the same CFDA number. PlainGrants indexes 12,419 other opportunities from National Institutes of Health.

Varies
award range
Closed
application status
93.855;93.856
CFDA program
12,419
other opportunities from National Institutes of Health

Archived opportunity record

HIV Proteins and Their Cellular Binding Partn… is closed. Check the agency catalog for replacement NOFOs. National Institutes of Health still indexes 12,419 other opportunities here.

According to Grants.gov (extract vintage 2026-08-10), this record reflects the officially published listing. See methodology.

Deadline tracker

Application window closed

This listing is no longer accepting applications

Posted May 5 Closed

Instrument

Grant

Description

-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.

Wide-open applicant board · 14 Grants.gov doors

HIV Proteins and Their Cellular Binding Partn… prints 14 distinct Grants.gov eligibility doors (State governments; County governments; City or township governments; Special district governments; +10 more). Filter fit before reading award size as demand — most applicant classes appear on the row. The extract does not mark applicant cost-sharing as required. Instrument: Grant. Funding-activity code maps to Health (HL). Only 71 other National Institutes of Health listings share this exact eligibility-code string (1% of 12,420).

Code 00
State governments
Code 01
County governments
Code 02
City or township governments
Code 04
Special district governments
Code 05
Independent school districts
Code 06
Public / state-controlled institutions of higher education
Code 07
Federally recognized tribal governments
Code 08
Public / Indian housing authorities
Code 11
Native American tribal organizations (other than Federally recognized tribal governments)
Code 12
Nonprofits with 501(c)(3) status (other than IHEs)
Code 13
Nonprofits without 501(c)(3) status (other than IHEs)
Code 20
Private institutions of higher education
Code 22
For-profit organizations other than small businesses
Code 25
Others (see official listing text)

Codes are Grants.gov eligibility category values from the extract vintage 2026-08-10. Confirm the full eligibility statement on the official listing or the Grants.gov eligibility reference.

Official Listing on Grants.gov

View full details, application forms, and submission instructions.

View on Grants.gov

Agency Contact

NIH OER Webmaster FBOWebmaster@OD.NIH.GOV

What to do next

HIV Proteins and Their Cellular Binding Partn… is closed; use the parent program and agency catalog for the next funding cycle.

  • Browse open federal opportunities in the same category when this listing is closed. Open opportunities
  • Look up CFDA 93.855;93.856 across all indexed listings before you commit to this opportunity alone. Eligibility finder
  • National Institutes of Health lists 12,419 other indexed opportunities on PlainGrants. Agency catalog

Opportunity deadlines and eligibility change on Grants.gov; PlainGrants mirrors the extract and is not the submission system.

Disclaimer: This information is sourced from Grants.gov and SAM.gov and is for informational purposes only. Opportunity details, deadlines, and eligibility requirements change frequently. Always verify current information directly on Grants.gov before applying. PlainGrants is not affiliated with any federal agency.

Data sourced from the SAM.gov Assistance Listings and Grants.gov. See our methodology for details. Retrieved and formatted by PlainGrants