Macromolecule Annotations for the Entities in PDB 1L4A

Protein Family Annotation Pfam Database Homepage

Chains Pfam Accession Pfam Identifier Pfam Description Type Source
B PF05739 SNARE SNARE domain Family
A PF00957 Synaptobrevin Synaptobrevin Family
D PF00835 SNAP-25 SNAP-25 family Family
E PF05835 Synaphin Synaphin protein Family
B PF00804 Syntaxin Syntaxin Domain Syntaxins are the prototype family of SNARE proteins. They usually consist of three main regions - a C-terminal transmembrane region, a central SNARE domain which is characteristic of and conserved in all syntaxins (Pfam:PF05739), and an N-terminal domain that is featured in this entry. This domain varies between syntaxin isoforms; in syntaxin 1A (Swiss:O35526) it is found as three alpha-helices with a left-handed twist. It may fold back on the SNARE domain to allow the molecule to adopt a 'closed' configuration that prevents formation of the core fusion complex - it thus has an auto-inhibitory role. The function of syntaxins is determined by their localisation. They are involved in neuronal exocytosis, ER-Golgi transport and Golgi-endosome transport, for example. They also interact with other proteins as well as those involved in SNARE complexes. These include vesicle coat proteins, Rab GTPases, and tethering factors [6]. PFAM PF00804

Gene Product Annotation Gene Ontology Consortium Homepage

Chains Polymer Molecular Function Biological Process Cellular Component
A SYNAPTOBREVIN (1L4A:A)
  • none
B S-SYNTAXIN (1L4A:B)
C S-SNAP25 fusion protein (1L4A:C)
  • none
  • none
  • none
D S-SNAP25 fusion protein (1L4A:D)
  • none
  • none
  • none
E SYNAPHIN A (1L4A:E)
  • none

Protein Modification Annotation

Type PDB Residue Nr. Description