View in Gene3D

CATH Superfamily 3.40.50.1100

The name of this superfamily has been modified since the most recent official CATH+ release (v4_3_0). At the point of the last release, this superfamily was: waiting to be named.

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
« Back to all FunFams

FunFam 9: Cysteine synthase

Please note: GO annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

There are 7 GO terms relating to "molecular function"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Cysteine synthase activity GO:0004124
Catalysis of the reaction: O3-acetyl-L-serine + hydrogen sulfide = L-cysteine + acetate.
 160 P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA)
(150 more)
Protein binding GO:0005515
Interacting selectively and non-covalently with any protein or protein complex (a complex of two or more proteins that may include other nonprotein molecules).
 160 P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI)
(150 more)
Transferase activity GO:0016740
Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
 160 P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA)
(150 more)
Pyridoxal phosphate binding GO:0030170
Interacting selectively and non-covalently with pyridoxal 5' phosphate, 3-hydroxy-5-(hydroxymethyl)-2-methyl4-pyridine carboxaldehyde 5' phosphate, the biologically active form of vitamin B6.
 160 P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA)
(150 more)
Identical protein binding GO:0042802
Interacting selectively and non-covalently with an identical protein or proteins.
 160 P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI) P0ABK5 (/IPI)
(150 more)
L-cysteine desulfhydrase activity GO:0080146
Catalysis of the reaction: L-cysteine + H2O = ammonia + pyruvate + hydrogen sulfide + H+.
 160 P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP)
(150 more)
Cysteine synthase activity GO:0004124
Catalysis of the reaction: O3-acetyl-L-serine + hydrogen sulfide = L-cysteine + acetate.
 6 Q9KTD4 (/ISS) Q9KTD4 (/ISS) Q9KTD4 (/ISS) Q9KTD4 (/ISS) Q9KTD4 (/ISS) Q9KTD4 (/ISS)

There are 4 GO terms relating to "biological process"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Cysteine biosynthetic process from serine GO:0006535
The chemical reactions and pathways resulting in the formation of cysteine from other compounds, including serine.
 160 P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA)
(150 more)
Cysteine biosynthetic process from serine GO:0006535
The chemical reactions and pathways resulting in the formation of cysteine from other compounds, including serine.
 160 P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP) P0ABK5 (/IMP)
(150 more)
Cellular amino acid biosynthetic process GO:0008652
The chemical reactions and pathways resulting in the formation of amino acids, organic acids containing one or more amino substituents.
 160 P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA)
(150 more)
Cysteine biosynthetic process from serine GO:0006535
The chemical reactions and pathways resulting in the formation of cysteine from other compounds, including serine.
 6 Q9KTD4 (/ISS) Q9KTD4 (/ISS) Q9KTD4 (/ISS) Q9KTD4 (/ISS) Q9KTD4 (/ISS) Q9KTD4 (/ISS)

There are 3 GO terms relating to "cellular component"

The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.
GO Term Annotations Evidence
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
 160 P0ABK5 (/HDA) P0ABK5 (/HDA) P0ABK5 (/HDA) P0ABK5 (/HDA) P0ABK5 (/HDA) P0ABK5 (/HDA) P0ABK5 (/HDA) P0ABK5 (/HDA) P0ABK5 (/HDA) P0ABK5 (/HDA)
(150 more)
Cytosol GO:0005829
The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
 160 P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA)
(150 more)
Cysteine synthase complex GO:0009333
Cysteine synthase is a multienzyme complex made up, in E. coli, of the heteromeric hexamer serine acetyltransferase and the homodimer O-acetylserine (thiol)-lyase A.
 160 P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA) P0ABK5 (/IDA)
(150 more)