Complete the equation for reductive amination ......... .
`+NH_(4)^(+)+NADPH overset(?)rarr "glutamate" + H_(2)O + NADP`

Explanation

To complete the equation for reductive amination, we need to identify the missing component that reacts with ammonium ion (NH₄⁺) and NADPH to produce glutamate, water (H₂O), and NADP⁺.

### Step-by-Step Solution:

1. **Identify the Reaction Type**:
- The reaction is a reductive amination, which typically involves the conversion of a keto acid into an amino acid by the addition of ammonia (NH₄⁺) in the presence of reducing agents.

2. **Recognize the Key Components**:
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