| Primary Identifier | IPR042302 | Type | Homologous_superfamily |
| Short Name | E1_FCCH_sf |
| description | This domain is found in the ubiquitin-activating E1 (Ub-E1) family enzymes. It is one of the catalytic cysteine half-domains ofUb-E1. The catalytic cysteine half-domains contain the E1 active site cysteine, and are known as FCCH and SCCH, for 'first' and 'second' catalytic cysteine half-domain, respectively [, ].Structurally, the FCCH domain is composed of 7 anti-parallel beta sheets and 2 alpha helices. |
