Saccharomyces cerevisiae Genome Snapshot/Overview

This page provides information on the status of the Saccharomyces cerevisiae genome. The Genome Inventory table is updated in real time. The bar graphs for GO data are updated once a day. All the data displayed on this page are available in one or more files (SGD_features.tab, gene_associations.sgd, go_slim_mapping.tab) at SGD's FTP site. The YeastMine tool can also be used to retrieve chromosomal features that match specific criteria.

1. Graphical View of Protein Coding Genes

2. Genome Inventory

3. Summary of GO annotations

4. Distribution of Gene Products by Process, Function, and Component

Graphical View of Protein Coding Genes (as of May 20, 2013)

5054 ORFs, 76.49%

787 ORFs, 11.91%

766 ORFs, 11.59%

Genome Inventory (as of May 20, 2013)

This table reports the number and types of features annotated in the SGD, per chromosome. To get a list of all features of a certain type (e.g. Verified ORF, tRNA, etc.), select that feature type. To access more information on the individual chromosome (e.g. sequence, a listing of all features on that chromosome, etc.), select the Roman numeral for that chromosome.

Feature Type	Total	Chromosome number
Feature Type	Total	I	II	III	IV	V	VI	VII	VIII	IX	X	XI	XII	XIII	XIV	XV	XVI	Nuclear genome	Mitochondrial genome(Q)	2-micron plasmid (R)
Total ORFs	6607	117	456	183	836	324	141	583	321	241	398	348	578	505	435	598	511	6575	28	4
Verified ORFs	5054	75	354	133	667	238	99	452	234	173	306	284	424	394	335	468	397	5033	17	4
Uncharacterized ORFs	766	17	48	26	71	37	26	68	44	37	47	29	76	59	59	61	59	764	2	0
Dubious ORFs	787	25	54	24	98	49	16	63	43	31	45	35	78	52	41	69	55	778	9	0
Long_terminal_repeat	383	9	22	20	36	33	11	44	24	10	24	14	32	24	16	32	32	383	0	0
ARS	337	11	18	19	40	19	12	28	16	15	25	16	26	25	21	19	27	337	0	0
tRNA	299	4	13	10	28	20	10	36	11	10	24	16	21	21	14	20	17	275	24	0
Transposable_element_genes	90	2	6	2	17	4	2	10	4	1	6	0	8	8	4	8	8	90	0	0
snoRNA	77	1	2	4	4	5	0	6	2	1	5	5	7	13	5	11	6	77	0	0
Retrotransposon	50	1	3	2	8	2	1	6	2	1	3	0	5	4	3	4	5	50	0	0
X_element_core_sequence	32	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	32	0	0
Telomere	32	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	32	0	0
Telomeric_repeat	31	2	1	2	2	0	2	1	3	2	2	2	5	3	2	2	0	31	0	0
X_element_combinatorial_repeats	28	1	2	2	2	1	1	2	2	2	2	2	2	2	2	2	1	28	0	0
rRNA	27	0	0	0	0	0	0	0	0	0	0	0	25	0	0	0	0	25	2	0
Pseudogenes	20	2	0	2	1	0	0	0	0	9	0	0	2	0	0	1	3	20	0	0
Y'_element	19	0	1	0	1	2	1	1	2	1	1	0	4	1	1	1	2	19	0	0
Centromere	16	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	16	0	0
ncRNA	15	1	1	0	0	3	4	0	2	2	0	0	0	1	0	0	0	14	1	0
snRNA	6	0	1	0	0	1	0	2	0	0	0	0	1	0	1	0	0	6	0	0
Total	8069	156	531	251	980	419	190	724	394	300	495	408	721	612	509	703	617	8010	55	4
Chromosome length (bp)	12,157,105	230,218	813,184	316,620	1,531,933	576,874	270,161	1,090,940	562,643	439,888	745,751	666,816	1,078,177	924,431	784,333	1,091,291	948,066	12,071,326	85,779	0

Summary of Gene Ontology (GO) annotations (as of May 20, 2013)

This table displays the current total number of S. cerevisiae gene products that have been annotated to one or more terms in each GO aspect (Process, Function, Component). These counts include GO annotations made for ORFs classified as either "Verified" or "Uncharacterized", transposable element genes, and all RNA gene products. Note that these counts do not include GO annotations made for ORFs classified as "Dubious", or for features of type "Pseudogene", "Not in S288C" or "Not physically mapped". Also note that the number of annotations displayed in the "Total Number of Annotations" column does not include annotations to the three "root" terms representing lack of knowledge at this time, i.e. "molecular function", "biological process", or "cellular component".

Ontology	Details of Annotations
Ontology	Total Number of Annotations	Number of Gene Products Annotated to root terms	Graphical View
Molecular Function	4365	1956	Go to Molecular Function Graph
Biological Process	5160	1161	Go to Biological Process Graph
Cellular Component	5596	725	Go to Cellular Component Graph
All Ontologies	15121	3842

Distribution of Gene Products by Process, Function, and Component (as of May 20, 2013)

These graphical views representing the GO annotation state of the entire genome are provided using a GO Slim (a high-level subset of Gene Ontology terms that allows grouping of genes into broad categories such as "DNA replication", "protein kinase activity", or "nucleus") tailored to yeast biology. GO Slim terms representing broad categories from a single aspect are listed for each graph, along with the percentage of S. cerevisiae gene products annotated to a specific term that maps up the ontology to the GO Slim term. Note that some gene products may be represented more than once, if they are annotated to one or more GO terms that map to more than one GO Slim term. Only the distribution of "known" Molecular Functions, Biological Processes, and Cellular Components are included in these graphs; annotations to the "root" terms "molecular function," "biological process," or "cellular component," which represent lack of knowledge at this time, are excluded from these graphs.

More information on GO and GO Slim can be found in SGD's GO help page. To obtain the GO data summarized in these graphs, please use the GO Slim Mapper or the go_slim_mapping.tab file from SGD's FTP site.