---
title: "Maps the post identifiers over the different species and projects the result to Homo Sapiens"
method: POST
path: "/mapping/projection"
tags: ["mapping"]
---

# Maps the post identifiers over the different species and projects the result to Homo Sapiens

`POST /mapping/projection`

## Request

- Base URL: `https://release.reactome.org/AnalysisService`
- URL: `https://release.reactome.org/AnalysisService/mapping/projection`
- Auth: none declared
- TypeScript: <https://skmtc.dev/reactome/apis/pathway-analysis-service/docs/mapping/projection/post.ts> (a function with typed inputs; its response is checked against the schema)

The projection is calculated by the orthologous slot in the Reactome database.

## Query parameters

- `interactors` boolean
- `importableOnly` boolean

## Request body `text/plain`

- string

## Other responses

- `400`: Bad request

---

[API](https://skmtc.dev/reactome/apis/pathway-analysis-service.md) - [All operations](https://skmtc.dev/reactome/apis/pathway-analysis-service/llms.txt) - [OpenAPI document](https://skmtc.dev/reactome/apis/pathway-analysis-service/revisions/935cc02cac0f?raw)