Welcome to the Pasion Lab!

Research summary
Recent publications
Lab Members

Contact info:

PI: Associate Professor Sally G Pasion
Department of Biology
1600 Holloway Avenue
San Francisco, CA 94132
tel: 415-405-0736 (office) 5-0751 (lab)
e-mail: pasion(at)sfsu(dot)edu

Spring 2021

Thursdays, 3:30pm - 5:30pm



Office Hours are first come, first served - drop in. On Zoom, you will first be in a "waiting room" and individuals will meet with advisor one at a time. Please be patient.

Please see this web page for useful Biology Advising information: Undergraduate Advising information for Biology Majors
General Biology Advising only for
CURRENT advisees--NEW GENERAL BIOLOGY advisees should consult the Department of Biology Office and to find an alternate General Biology Advisor.

For advising, please make sure that you
•STOP at the Department of Biology Office HH534
DOWNLOAD the Biology Advising Checklist (click here to download) BEFORE you visit
•BRING all the required paperwork indicated in the Checklist for your meeting

Students must be prepared for the advising appointment:
Go to the
Biology Advising web page:

Go to theGeneral Biology Advising web page:
Student must bring ALL paperwork (Biology Advising Checklist, SFSU unofficial transcripts, DARS/ASE/Degree Progress Report, supporting documents from transfer campuses, forms) to the meeting

Research Summary return to top of page
Research Program Description
Graduate Program Description


Recent publications return to top of page

Gould, K.L., Burns, C.G., Feoktistova, A., Hu, C.P., Pasion, S.G., and Forsburg, S.L. (1998) Fission yeast cdc24(+) encodes a novel replication factor required for chromosome integrity. Genetics 149:1221-1233.
Sherman, D. A., Pasion, S. G., and Forsburg, S. L. (1998). Multiple domains of fission yeast Cdc19p (MCM2) are required for association with the core MCM complex. Mol. Biol. Cell 9:1833-1845.
Pasion , S. G. and Forsburg, S.L. (1999). Nuclear localization of fission yeast Mcm2/Cdc19p requires MCM complex formation. Mol. Biol. Cell 10: 4043-4057.
Pasion, S.G., Gómez, E.B., and Forsburg, S.L. (2000) Dynamic chromosomes. Genome Biology 1:4020.1-4020.3.
Pasion, S.G. and Forsburg, S.L. (2001). Deconstructing a conserved protein family: the role of MCM proteins in eukaryotic DNA replication. In: Genetic Engineering, Principles and Methods, vol. 23. J. K. Setlow, ed. Dordrecht: Kluwer Academic/Plenum Press, Genet Eng (N Y). 2001;23:129-155.

Classes return to top of page


Spring 2021

Biol 310 Biology for Today's World - [Mon and Wed, 2 - 3:40pm, online via Zoom]

Each student is enrolled in BOTH Biol 310-01 Lecture 2-3:40pm and Biol 355-02 ACTIVITY 2-3:40pm.

 Attendance is expected in BOTH classes every week. This course is designed for non-majors students. Biology students should not enroll in Biol 310 (Biology students will complete their UD-B requirement by completion of Biol 355 Genetics). Completion of this course with a C- or better will meet the UD-B graduation requirement, if a student has upper division standing, and the SF State Studies Environmental Sustainability requirement. Students who have completed Biol 230 should not take Biol 310



Course prerequisite: completion of one college level biology course for credit This upper division biology course is intended for non-major students interested in deepening their knowledge of scientific inquiry and biological systems. An overarching goal of the course is for students to gain insight into the nature of scientific inquiry, the process by which knowledge in biology is acquired, and of the strengths and limitations of the process and the evidence obtained. To this end, students will evaluate experiments and data that support our current understanding of biological systems and how they function, will gain skills in working with peers as they contribute to planning and accomplishing collaborative investigations and oral presentations, and will also have the opportunity to improve their communication skills through collaboration with peers, numerous writing assignments, and scientific poster presentations. All students who wish to enroll in Biol 310 (whether you are currently registered or wish to add the class) must attend the first day of class (MONDAY, January 25, 2021).  


BIOL 357-01 Molecular Genetics [Mon, Wed, & Fri, 12:00 pm- 12:50 pm, online via Zoom]

 Biology 357 is a course intended for biology majors. The course will cover current ideas in molecular biology including the transfer and expression of genetic information, the interaction and hybridization of genes, molecular mutagens, and molecular evolution. Related "ethical questions" will also be discussed as they arise. In this course, we will focus on the transmission and expression of genetic information. Although the course predominantly emphasizes eukaryotic molecular genetics, we will also familiarize ourselves with prokaryotic molecular genetics. We will consider the structure and function of the genetic material at the molecular level, replication and repair of the genetic material, and the regulation and expression of genetic information. The prerequisite for Biol 357 is completion of Biol 355 (or equivalent majors genetics course) with a grade of C- or better. The prerequisite will be enforced. Cell & Molecular Biology B.S. students have priority enrollment. Successful registration (touch-tone) in Biol 357 is not a guarantee of enrollment--successful completion of the prerequisite must be confirmed.

All students who wish to enroll in Biol 357 (whether you are currently registered or wish to add the class) must attend the first day of class (Monday, Jan 25, 2021). To expedite enrollment, each student must bring his/her unofficial SF State transcript or SF State DARS or transcripts from the non-SF State campus, demonstratingsuccessful completion of the prerequisite course (unless you completed Biol 355 Genetics at SF State). These forms will be turned in to the instructor during the first week of classes. RECOMMENDED: Molecular Genetics Textbook (available at SF State Bookstore AND at the SF State Library) Title: Molecular Biology: Principles and Practice Authors: Michael M. Cox; Jennifer Doudna; Michael O'Donnell Edition: 2nd Edition, 2015 (Publisher, WH Freeman).

Links   return to top of page

Department of Biology home page
Biology Advising Web page
General Biology, Minor in Biology, and Single Subject Credential Advising
Policy on requesting Letters of Recommendation
SFSU Library Online Journals (Cell, Molecular, and Microbiology-related)
Meetings List (targeted for Pasion lab members)
SFSU Colloquium (Biology 871)

Forsburg lab pombe pages
Sanger center pombe genome project 

Lab Members return to top of page

Fall 2019 and Spring 2020: Jiayu Luo, Amy Tran, Ntsaum Vang

Summer 2015 Lab Photo  Spring 2018 Lab Photo
photo soon!
photo soon!
Janell Garcia - Undergraduate student
Ntsaum Vang - Masters student
photo soon!
photo soon!
Kanika Sethi - Undergraduate student
Jiayu Luo - Masters student
photo soon!
Marakee Tilahun - Undergraduate student
Spring 2012 Lab Photo


Previous Lab Members:
Vanessa Aguilera  (B.S. SF State, M.S. SF State, now at Clover Health)
Masae Ahmann (graduate student, currently SF State MS student)
Mattelin Bautista (Bridges Summer Student
Dennis Bua (M.S. SF State, Ph.D. and postdoc Stanford)
Berenice Cabrera (B.S. SF State)
Janis Cabuhat (B.S. SF State, currently at Genentech)
Joni Castro (SF State graduate student)
Jessica Chan (B.S. SF State)
Shani Chapman (M.S. SF State)
Johnny Chavez (M.S. SF State)
Laura Cochrane (Research Technician, SF State graduate student)
Sheire Coleman (B.S.)

Noel Cruz-Pacheco (M.S. SF State, currently Research Associate at UCSF)
Amy Dhirapong (graduate student, Ph.D. UC Davis)
Letizia Diamante (Visiting International Scholar; MS, Univ. of Pavia; currently University of Cambridge Ph.D. student)
Gemma Estrada Girona (M.S. SF State, currently Research Technician at EMBL)
Gabriela Flores - (B.S. SF State)
Gabe Getchell - (B.S. SF State)
Brenna Gibson (B.S. and M.S. SF State, Research Associate, Hampton Creek)
Kadra Gulaid (B.S. SF State, MPH UC Berkeley)
Marwa Hararah (B.S. SF State)
Mela Hardin (M.A. in Mathematics, SF State, currently Ph.D. student at Arizona State)

Sally Hutchinson (B.S. SF State)
Ugochi Ikeme (B.S. SF State)
Ryan Kendle (graduate student, M.D.-Ph.D. Drexel University )

Lorl Lee (Project SEED intern)
Philbert Lee (high school student intern, B.S. UCSC, M.S. SF State, currently Ph.D. student at University of Chicago)

Lisa Liang (Project SEED intern, B.S. Environmental Toxicology, UC Davis)
Alice Liu (high school student intern)
Alice Liu (high school student intern)
Anthony Xavier Lopez (B.S. SF State, M.S. SF State, currently teaching at LA Valley College & El Camino College)

Eduardo Lujan (B.S. SF State, M.S. SF State, currently Ph.D. student at UC Berkeley)
Elizabeth Mazza (B.S. SF State)
Jennifer Menjivar (B.S. SF State, currently MD student at David Geffen School of Medicine at UCLA )
Mehnaz Malek (graduate student, currently at Celgene)
Garima Mital (M.S. SF State, currently at Genentech)

Ariff Moolla (B.A. in Mathematics, B.S. in Cell & Molecular Biology SF State, graduate student at Touro University)
Bichloan Nguyen (B.S. and M.S. SF State)
Erica Pederson  (Research Associate at UC Berkeley)
J. Michelle Pierce (Bridges Summer student, B.S. Arizona State, currently at SF Department of the Environment)

Justine Jenny Ramos (B.S. SF State, currently at biotech start-up OCGene)
Terry Reyes (B.S. SF State, Ph.D. Stanford University, currently at Genencor)
Nainoa Richardson (B.S. and M.S. SF State, currently Ph.D. student at University of Nice Sophia-Antipolis (UNS) Institute of Biology Valrose (iBV))
Leonel Santibañez Vargas (Bridges Summer student, B.S. UC Riverside)

Iqbal Thabet (SF State graduate student)
Herlinda Tin (Bridges Summer student, B.A. in Psychology, UC Riverside; M.A. Massachusetts School of Professional Psychology)
Anna Marie Tuazon (M.S. SF State, currently Ph.D. student, UC Davis)
Cherryl Valenzuela (Bridges Summer student
Laura Wazna-Blank (B.S. SF State)
Ivan Zamora (SF State graduate student, Impossible Food Inc.)


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