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 Advanced Search 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 Chromosome Sequence and Annotation Updates

4. Summary of GO annotations

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

Graphical View of Protein Coding Genes (as of Nov 22, 2009)

4848 ORFs, 73.38%

948 ORFs, 14.35%

811 ORFs, 12.27%

Genome Inventory (as of Nov 22, 2009)

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
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 4848 75 336 125 638 228 97 437 225 166 296 272 397 379 322 445 389 4827 17 4
Uncharacterized ORFs 948 17 64 33 99 45 27 80 52 40 55 40 103 73 68 83 67 946 2 0
Dubious ORFs 811 25 56 25 99 51 17 66 44 35 47 36 78 53 45 70 55 802 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 89 2 6 2 17 4 2 10 4 1 6 0 8 8 3 8 8 89 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 21 2 0 2 1 0 0 0 0 9 0 0 2 0 1 1 3 21 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 13 1 1 0 0 3 4 0 2 0 0 0 0 1 0 0 0 12 1 0
snRNA 6 0 1 0 0 1 0 2 0 0 0 0 1 0 1 0 0 6 0 0
Total 8067 156 531 251 980 419 190 724 394 298 495 408 721 612 509 703 617 8008 55 4
Chromosome length (bp) 12,156,676 230,208 813,178 316,617 1,531,919 576,869 270,148 1,090,947 562,643 439,885 745,741 666,454 1,078,175 924,429 784,333 1,091,289 948,062 12,070,897 85,779 0

Feature Type	Total	Chromosome number
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	4848	75	336	125	638	228	97	437	225	166	296	272	397	379	322	445	389	4827	17	4
Uncharacterized ORFs	948	17	64	33	99	45	27	80	52	40	55	40	103	73	68	83	67	946	2	0
Dubious ORFs	811	25	56	25	99	51	17	66	44	35	47	36	78	53	45	70	55	802	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	89	2	6	2	17	4	2	10	4	1	6	0	8	8	3	8	8	89	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	21	2	0	2	1	0	0	0	0	9	0	0	2	0	1	1	3	21	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	13	1	1	0	0	3	4	0	2	0	0	0	0	1	0	0	0	12	1	0
snRNA	6	0	1	0	0	1	0	2	0	0	0	0	1	0	1	0	0	6	0	0
Total	8067	156	531	251	980	419	190	724	394	298	495	408	721	612	509	703	617	8008	55	4
Chromosome length (bp)	12,156,676	230,208	813,178	316,617	1,531,919	576,869	270,148	1,090,947	562,643	439,885	745,741	666,454	1,078,175	924,429	784,333	1,091,289	948,062	12,070,897	85,779	0

Summary of Chromosome Sequence and Annotation updates

As new data become available, SGD curators update the systematic sequence and its annotation. This table summarizes the sequence and/or annotation updates made for each chromosome, since the intital release on 1996-07-31.

Select the chromosome number to retrieve the corresponding Chromosome History page, which provides details on all the updates for that chromosome. Current and past versions of the sequence and annotation are also available on SGD's FTP site and at NCBI.

If you are aware of additional sequence or annotation changes that should be made to the reference sequence (S288C), please send a message to SGD curators. At this time, SGD does not record sequence variation between S288C and other strains of Saccharomyces cerevisiae. See the Systematic Sequencing Project page for more information about the reference sequence.

Chromosome History Sequence Updates Annotation Updates
Total Number
Last Update
Total Number
Last Update

I
28
2008-03-05
22
2007-05-08
II
44
2004-07-16
43
2009-05-07
III
694
2006-01-12
49
2009-02-19
IV
14
2008-06-05
55
2009-05-07
V
1
2000-03-16
35
2007-07-09
VI
8
2004-02-05
21
2009-05-04
VII
29
2007-12-11
46
2009-05-07
VIII
7
2005-11-07
22
2009-05-06
IX
0
N/A
23
2009-05-07
X
23
2009-02-18
27
2007-05-08
XI
30
2008-06-03
36
2009-05-06
XII
7
2006-01-09
34
2009-05-08
XIII
1
2004-02-28
26
2009-05-08
XIV
15
2006-11-09
29
2009-05-06
XV
6
2006-01-05
44
2009-05-05
XVI
5
2004-07-21
35
2009-05-08
Mitochondrial Genome
0
N/A
3
2006-01-12

Chromosome History	Sequence Updates	Annotation Updates
Total Number	Last Update	Total Number	Last Update
I	28	2008-03-05	22	2007-05-08
II	44	2004-07-16	43	2009-05-07
III	694	2006-01-12	49	2009-02-19
IV	14	2008-06-05	55	2009-05-07
V	1	2000-03-16	35	2007-07-09
VI	8	2004-02-05	21	2009-05-04
VII	29	2007-12-11	46	2009-05-07
VIII	7	2005-11-07	22	2009-05-06
IX	0	N/A	23	2009-05-07
X	23	2009-02-18	27	2007-05-08
XI	30	2008-06-03	36	2009-05-06
XII	7	2006-01-09	34	2009-05-08
XIII	1	2004-02-28	26	2009-05-08
XIV	15	2006-11-09	29	2009-05-06
XV	6	2006-01-05	44	2009-05-05
XVI	5	2004-07-21	35	2009-05-08
Mitochondrial Genome	0	N/A	3	2006-01-12

Summary of Gene Ontology (GO) annotations (as of Nov 22, 2009)

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
Total Number of Annotations Number of Gene Products Annotated to root terms Graphical View
Molecular Function 4297 1997 Go to Molecular Function Graph
Biological Process 5014 1280 Go to Biological Process Graph
Cellular Component 5494 800 Go to Cellular Component Graph
All Ontologies 14805 4077

Ontology	Details of Annotations
Total Number of Annotations	Number of Gene Products Annotated to root terms	Graphical View
Molecular Function	4297	1997	Go to Molecular Function Graph
Biological Process	5014	1280	Go to Biological Process Graph
Cellular Component	5494	800	Go to Cellular Component Graph
All Ontologies	14805	4077

Distribution of Gene Products by Process, Function, and Component (as of Nov 22, 2009)

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.

SGD^tm pages Database Copyright © 1997-2008 The Board of Trustees of Leland Stanford Junior University. Permission to use the information contained in this database was given by the researchers/institutes who contributed or published the information. Users of the database are solely responsible for compliance with any copyright restrictions, including those applying to the author abstracts. Documents from this server are provided "AS-IS" without any warranty, expressed or implied. The SGD project at Stanford University is supported by a Genome Research Resource Grant from the US National Human Genome Research Institute, part of the US National Institutes of Health.