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4MSX

Crystal structure of an essential yeast splicing factor

Entity
Entity IDChain IDDescriptionTypeChain lengthFormula weightNumber of moleculesDB Name (Accession)Biological sourceDescriptive keywords
1A
(A)
Pre-mRNA-splicing factor SAD1polymer48255861.61UniProt (P43589)
Pfam (PF02148)
Pfam (PF00443)
Saccharomyces cerevisiae (Baker's yeast)snRNP assembly-defective protein 1
2B
(A)
ZINC IONnon-polymer65.41Chemie (ZN)
3C
(A)
ACETATE IONnon-polymer59.01Chemie (ACT)
4D
(A)
waterwater18.0321Chemie (HOH)
Sequence modifications
A: 1 - 448 (UniProt: P43589)
PDBExternal DatabaseDetails
Met -33-expression tag
Gly -32-expression tag
Ser -31-expression tag
Ser -30-expression tag
His -29-expression tag
His -28-expression tag
His -27-expression tag
His -26-expression tag
His -25-expression tag
His -24-expression tag
Ser -23-expression tag
Ser -22-expression tag
Gly -21-expression tag
Leu -20-expression tag
Val -19-expression tag
Pro -18-expression tag
Arg -17-expression tag
Gly -16-expression tag
Ser -15-expression tag
His -14-expression tag
Met -13-expression tag
Ala -12-expression tag
Ser -11-expression tag
Met -10-expression tag
Thr -9-expression tag
Gly -8-expression tag
Gly -7-expression tag
Gln -6-expression tag
Gln -5-expression tag
Met -4-expression tag
Gly -3-expression tag
Arg -2-expression tag
Asp -1-expression tag
Pro 0-expression tag
Sequence viewer
Contents of the asymmetric unit
PolymersNumber of chains1
Total formula weight55861.6
Non-Polymers*Number of molecules2
Total formula weight124.5
All*Total formula weight55986.0
*Water molecules are not included.

238268

PDB entries from 2025-07-02

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