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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.
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FunFam 16: Cysteine synthase A

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 8 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.
 16 A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS)
(6 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).
 11 P9WP53 (/IPI) P9WP53 (/IPI) P9WP53 (/IPI) P9WP53 (/IPI) P9WP53 (/IPI) P9WP53 (/IPI) P9WP53 (/IPI) P9WP53 (/IPI) P9WP53 (/IPI) P9WP53 (/IPI)
(1 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.
 11 P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA)
(1 more)
O-phosphoserine sulfhydrylase activity GO:0033847
Catalysis of the reaction: O-phospho-L-serine + hydrogen sulfide = L-cysteine + phosphate.
 11 P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA)
(1 more)
Cysteine synthase activity GO:0004124
Catalysis of the reaction: O3-acetyl-L-serine + hydrogen sulfide = L-cysteine + acetate.
 6 O01592 (/IDA) O05393 (/IDA) O05393 (/IDA) O05393 (/IDA) O05393 (/IDA) O05393 (/IDA)
Cystathionine beta-synthase activity GO:0004122
Catalysis of the reaction: L-serine + L-homocysteine = cystathionine + H2O.
 5 O05393 (/IDA) O05393 (/IDA) O05393 (/IDA) O05393 (/IDA) O05393 (/IDA)
Cystathionine beta-synthase activity GO:0004122
Catalysis of the reaction: L-serine + L-homocysteine = cystathionine + H2O.
 1 Q5BD67 (/RCA)
Cysteine synthase activity GO:0004124
Catalysis of the reaction: O3-acetyl-L-serine + hydrogen sulfide = L-cysteine + acetate.
 1 Q5BD67 (/RCA)

There are 7 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.
 17 O01592 (/IDA) O05393 (/IDA) O05393 (/IDA) O05393 (/IDA) O05393 (/IDA) O05393 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA)
(7 more)
Cysteine biosynthetic process from serine GO:0006535
The chemical reactions and pathways resulting in the formation of cysteine from other compounds, including serine.
 15 A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS) A0A1J9VES8 (/ISS)
(5 more)
Cysteine biosynthetic process from serine GO:0006535
The chemical reactions and pathways resulting in the formation of cysteine from other compounds, including serine.
 11 P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS)
(1 more)
Positive regulation of cell population proliferation GO:0008284
Any process that activates or increases the rate or extent of cell proliferation.
 5 O05393 (/IMP) O05393 (/IMP) O05393 (/IMP) O05393 (/IMP) O05393 (/IMP)
Cellular amino acid metabolic process GO:0006520
The chemical reactions and pathways involving amino acids, carboxylic acids containing one or more amino groups, as carried out by individual cells.
 1 Q5BD67 (/RCA)
Cysteine metabolic process GO:0006534
The chemical reactions and pathways involving cysteine, 2-amino-3-mercaptopropanoic acid.
 1 Q5BD67 (/RCA)
Cysteine biosynthetic process GO:0019344
The chemical reactions and pathways resulting in the formation of cysteine, 2-amino-3-mercaptopropanoic acid.
 1 Q54CN7 (/ISS)

There are 5 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.
 11 P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS) P9WP53 (/TAS)
(1 more)
Protein-containing complex GO:0032991
A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together.
 11 P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA) P9WP53 (/IDA)
(1 more)
Mitochondrion GO:0005739
A semiautonomous, self replicating organelle that occurs in varying numbers, shapes, and sizes in the cytoplasm of virtually all eukaryotic cells. It is notably the site of tissue respiration.
 4 P53206 (/HDA) P53206 (/HDA) P53206 (/HDA) P87131 (/HDA)
Mitochondrial outer membrane GO:0005741
The outer, i.e. cytoplasm-facing, lipid bilayer of the mitochondrial envelope.
 3 P53206 (/HDA) P53206 (/HDA) P53206 (/HDA)
Mitochondrial outer membrane GO:0005741
The outer, i.e. cytoplasm-facing, lipid bilayer of the mitochondrial envelope.
 1 P87131 (/ISO)