3AX5

Crystal structure of rat TOM20-ALDH presequence complex: A complex (form1) between Tom20 and a disulfide-bridged presequence peptide containing D-Cys and L-Cys at the i and i+3 positions.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, C	Mitochondrial import receptor subunit TOM20 homolog	polymer	73	8022.2	2	UniProt (Q62760) Pfam (PF02064) In PDB	Rattus norvegicus (rat)
2	B, D	Aldehyde dehydrogenase, mitochondrial	polymer	11	1256.5	2	UniProt (P11884) In PDB	Rattus norvegicus
3	A	PHOSPHATE ION	non-polymer		95.0	1	Chemie (PO4)
4		water	water		18.0	23	Chemie (HOH)

Sequence modifications

A, C: 59 - 126 (UniProt: Q62760)

PDB	External Database	Details
Gly 54	-	expression tag
Pro 55	-	expression tag
Leu 56	-	expression tag
Gly 57	-	expression tag
Ser 58	-	expression tag

B, D: 12 - 20 (UniProt: P11884)

PDB	External Database	Details
Dcy 13	Pro 13	engineered mutation
Cys 16	Ser 16	engineered mutation
Tyr 21	-	expression tag
Ala 22	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	18557.4
Non-Polymers*	Number of molecules	1
	Total formula weight	95.0
All*	Total formula weight	18652.4

*Water molecules are not included.